1289 lines
37 KiB
C++
1289 lines
37 KiB
C++
// buildstardb.cpp
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//
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// Copyright (C) 2001, Chris Laurel <claurel@shatters.net>
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//
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// This program is free software; you can redistribute it and/or
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// modify it under the terms of the GNU General Public License
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// as published by the Free Software Foundation; either version 2
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// of the License, or (at your option) any later version.
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#include <string>
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#include <vector>
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#include <map>
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#include <algorithm>
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#include <iostream>
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#include <fstream>
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#include <cstdio>
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#include <cassert>
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#include <unistd.h>
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#include <config.h>
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#include "celengine/stardb.h"
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using namespace std;
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using namespace celmath;
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#if defined(_WIN32) || defined(NATIVE_OSX_APP)
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static string MainDatabaseFile("hip_main.dat");
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static string TychoDatabaseFile("tyc_main.dat");
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static string ComponentDatabaseFile("h_dm_com.dat");
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static string OrbitalDatabase("hip_dm_o.dat");
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#else
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static string MainDatabaseFile(HIP_DATA_DIR "/hip_main.dat");
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static string TychoDatabaseFile(HIP_DATA_DIR "/tyc_main.dat");
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static string ComponentDatabaseFile(HIP_DATA_DIR "/h_dm_com.dat");
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static string OrbitalDatabase(HIP_DATA_DIR "/hip_dm_o.dat");
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#endif
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static const int HipStarRecordLength = 451;
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static const int HipComponentRecordLength = 239;
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static const int TycStarRecordLength = 351;
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static uint32_t NullCCDMIdentifier = 0xffffffff;
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static uint32_t NullCatalogNumber = 0xffffffff;
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static int verbose, dropstars;
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class HipparcosStar
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{
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public:
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HipparcosStar() = default;
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void write(ostream& /*out*/);
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void analyze();
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uint32_t HIPCatalogNumber{NullCatalogNumber};
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uint32_t HDCatalogNumber{NullCatalogNumber};
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float ascension{0.0f};
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float declination{0.0f};
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float parallax{0.0f};
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float appMag{0.0f};
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StellarClass stellarClass;
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uint32_t CCDMIdentifier{NullCCDMIdentifier};
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uint8_t starsWithCCDM{0};
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uint8_t nComponents{1};
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uint8_t parallaxError{0};
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unsigned int tycline{0};
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unsigned int status;
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float e_RA{0.0f}; // Errors in Right Ascension,
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float e_DE{0.0f}; // Declination,
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float e_Mag{0.0f}; // and Magnitude
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};
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template<class T> void binwrite(ostream& out, T x)
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{
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out.write(reinterpret_cast<char*>(&x), sizeof(T));
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}
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void HipparcosStar::write(ostream& out)
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{
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if (status>=2)
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return;
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#if 0
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if (HDCatalogNumber != NullCatalogNumber)
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binwrite(out, HDCatalogNumber);
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else
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binwrite(out, HIPCatalogNumber | 0x10000000);
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#endif
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binwrite(out, HIPCatalogNumber);
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binwrite(out, HDCatalogNumber);
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binwrite(out, ascension);
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binwrite(out, declination);
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binwrite(out, parallax);
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binwrite(out, (short) (appMag * 256));
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binwrite(out, stellarClass);
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binwrite(out, parallaxError);
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}
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// Statistic Values:
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float s_er; // Sum of Error in RA
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float s_erq; // Sum of Squares of Errors in RA
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unsigned int n_er; // Number of Error Values
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float s_ed, s_edq; // Ditto for Declination
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unsigned int n_ed;
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unsigned int n_drop,n_dub; // number of stars to drop, number dubious
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void HipparcosStar::analyze()
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{
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int dubious=0;
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status=0;
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if ((parallax) <= 0.4 && ((dropstars==0) || (dropstars==1 && appMag<6.0)))
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parallax=0.4; /* fix strange paralaxes so the stars aren't *way*
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out there. A parallax of 0.4 will put them at
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just a touch above 8154 LY away. */
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if (parallax <= 0.0)
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dubious+=400;
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else if (parallax<0.2)
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dubious+=4;
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else if (parallax<0.4)
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dubious+=2;
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if (parallax<=parallaxError)
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dubious+=2;
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else if (parallax<=(2*parallaxError))
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dubious++;
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if (e_RA<1000.0)
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{
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s_er+=e_RA;
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s_erq+=square(e_RA);
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n_er++;
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if (e_RA>20.0)
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dubious+=100;
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else if (e_RA>15.0)
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dubious+=2;
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else if (e_RA>10.0)
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dubious++;
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}
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else
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dubious+=4; /* No error given, assume it's rather dubious */
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if (e_DE<1000.0)
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{
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s_ed+=e_DE;
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s_edq+=square(e_DE);
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n_ed++;
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if (e_DE>20.0)
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dubious+=100;
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else if (e_DE>15.0)
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dubious+=2;
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else if (e_DE>10.0)
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dubious++;
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}
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else
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dubious+=4; /* No error given, assume it's rather dubious */
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if (dubious>3)
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{
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status=1;
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n_dub++;
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}
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if ((dubious>5) && ((dropstars) != 0) && (!(dropstars==1 && appMag<6.0)))
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{
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status=2;
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n_drop++;
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}
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}
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bool operator<(const HipparcosStar& a, const HipparcosStar& b)
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{
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return a.HIPCatalogNumber < b.HIPCatalogNumber;
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}
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struct HIPCatalogComparePredicate
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{
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HIPCatalogComparePredicate()
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{
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}
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bool operator()(const HipparcosStar* star0, const HipparcosStar* star1) const
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{
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return star0->HIPCatalogNumber < star1->HIPCatalogNumber;
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}
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bool operator()(const HipparcosStar* star0, uint32_t hip)
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{
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return star0->HIPCatalogNumber < hip;
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}
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int dummy{0};
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};
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class MultistarSystem
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{
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public:
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int nStars; // Never greater than four in the HIPPARCOS catalog
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HipparcosStar* stars[4];
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};
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class HipparcosComponent
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{
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public:
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HipparcosComponent() = default;
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HipparcosStar* star{nullptr};
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char componentID{'A'};
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char refComponentID{'A'};
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float ascension;
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float declination;
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float appMag{0.0f};
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float bMag{0.0f};
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float vMag{0.0f};
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bool hasBV{false};
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float positionAngle{0.0f};
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float separation{0.0f};
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};
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vector<HipparcosStar> stars;
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vector<HipparcosStar> companions;
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vector<HipparcosComponent> components;
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vector<HipparcosStar*> starIndex;
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typedef map<uint32_t, MultistarSystem*> MultistarSystemCatalog;
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MultistarSystemCatalog starSystems;
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HipparcosStar* findStar(uint32_t hip)
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{
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HIPCatalogComparePredicate pred;
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vector<HipparcosStar*>::iterator iter = lower_bound(starIndex.begin(),
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starIndex.end(),
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hip, pred);
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if (iter == starIndex.end())
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return nullptr;
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HipparcosStar* star = *iter;
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if (star->HIPCatalogNumber == hip)
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return star;
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return nullptr;
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}
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StellarClass ParseStellarClass(char *starType)
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{
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StellarClass::StarType type = StellarClass::NormalStar;
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StellarClass::SpectralClass specClass = StellarClass::Spectral_A;
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StellarClass::LuminosityClass lum = StellarClass::Lum_V;
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unsigned short number = 5;
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int i = 0;
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// Subdwarves (luminosity class VI) are prefixed with sd
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if (starType[i] == 's' && starType[i + 1] == 'd')
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{
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lum = StellarClass::Lum_VI;
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i += 2;
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}
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switch (starType[i])
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{
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case 'O':
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specClass = StellarClass::Spectral_O;
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break;
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case 'B':
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specClass = StellarClass::Spectral_B;
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break;
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case 'A':
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specClass = StellarClass::Spectral_A;
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break;
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case 'F':
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specClass = StellarClass::Spectral_F;
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break;
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case 'G':
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specClass = StellarClass::Spectral_G;
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break;
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case 'K':
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specClass = StellarClass::Spectral_K;
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break;
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case 'M':
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specClass = StellarClass::Spectral_M;
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break;
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case 'R':
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specClass = StellarClass::Spectral_R;
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break;
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case 'N':
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specClass = StellarClass::Spectral_S;
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break;
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case 'S':
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specClass = StellarClass::Spectral_N;
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break;
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case 'W':
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i++;
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if (starType[i] == 'C')
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specClass = StellarClass::Spectral_WC;
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else if (starType[i] == 'N')
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specClass = StellarClass::Spectral_WN;
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else
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i--;
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break;
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case 'D':
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type = StellarClass::WhiteDwarf;
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return StellarClass(type, specClass, 0, lum);
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default:
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specClass = StellarClass::Spectral_Unknown;
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break;
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}
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i++;
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if (starType[i] >= '0' && starType[i] <= '9')
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{
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number = starType[i] - '0';
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}
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else
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{
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// No number given for spectral class; assume it's a 5 unless
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// the star is type O, as O5 stars are exceedingly rare.
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if (specClass == StellarClass::Spectral_O)
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number = 9;
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else
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number = 5;
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}
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if (lum != StellarClass::Lum_VI)
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{
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i++;
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lum = StellarClass::Lum_V;
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while (i < 13 && starType[i] != '\0') {
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if (starType[i] == 'I') {
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if (starType[i + 1] == 'I') {
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if (starType[i + 2] == 'I') {
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lum = StellarClass::Lum_III;
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} else {
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lum = StellarClass::Lum_II;
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}
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} else if (starType[i + 1] == 'V') {
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lum = StellarClass::Lum_IV;
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} else if (starType[i + 1] == 'a') {
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if (starType[i + 2] == '0')
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lum = StellarClass::Lum_Ia0;
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else
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lum = StellarClass::Lum_Ia;
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} else if (starType[i + 1] == 'b') {
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lum = StellarClass::Lum_Ib;
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} else {
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lum = StellarClass::Lum_Ib;
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}
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break;
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}
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if (starType[i] == 'V') {
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if (starType[i + 1] == 'I')
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lum = StellarClass::Lum_VI;
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else
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lum = StellarClass::Lum_V;
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break;
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}
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i++;
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}
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}
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return StellarClass(type, specClass, number, lum);
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}
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HipparcosStar TheSun()
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{
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HipparcosStar star;
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star.HDCatalogNumber = 0;
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star.HIPCatalogNumber = 0;
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star.ascension = 0.0f;
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star.declination = 0.0f;
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star.parallax = 1000000.0f;
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star.appMag = -15.17f;
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star.stellarClass = StellarClass(StellarClass::NormalStar,
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StellarClass::Spectral_G, 2,
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StellarClass::Lum_V);
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return star;
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}
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StellarClass guessSpectralType(float colorIndex, float /*absMag*/)
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{
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StellarClass::SpectralClass specClass = StellarClass::Spectral_Unknown;
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float subclass = 0.0f;
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if (colorIndex < -0.25f)
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{
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specClass = StellarClass::Spectral_O;
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subclass = (colorIndex + 0.5f) / 0.25f;
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}
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else if (colorIndex < 0.0f)
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{
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specClass = StellarClass::Spectral_B;
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subclass = (colorIndex + 0.25f) / 0.25f;
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}
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else if (colorIndex < 0.25f)
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{
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specClass = StellarClass::Spectral_A;
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subclass = (colorIndex - 0.0f) / 0.25f;
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}
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else if (colorIndex < 0.6f)
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{
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specClass = StellarClass::Spectral_F;
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subclass = (colorIndex - 0.25f) / 0.35f;
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}
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else if (colorIndex < 0.85f)
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{
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specClass = StellarClass::Spectral_G;
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subclass = (colorIndex - 0.6f) / 0.25f;
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}
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else if (colorIndex < 1.4f)
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{
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specClass = StellarClass::Spectral_K;
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subclass = (colorIndex - 0.85f) / 0.55f;
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}
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else
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{
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specClass = StellarClass::Spectral_M;
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subclass = (colorIndex - 1.4f) / 1.0f;
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}
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if (subclass < 0.0f)
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subclass = 0.0f;
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else if (subclass > 1.0f)
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subclass = 1.0f;
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return StellarClass(StellarClass::NormalStar,
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specClass,
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(unsigned int) (subclass * 9.99f),
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StellarClass::Lum_V);
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}
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static unsigned int okStars, lineno, changes, tested;
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bool CheckStarRecord(istream& in)
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{
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HipparcosStar star,*hipstar;
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char buf[HipStarRecordLength];
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bool ok=true;
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in.read(buf, TycStarRecordLength);
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lineno++;
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if (sscanf(buf + 210, "%d", &star.HIPCatalogNumber) != 1)
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{
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// Not in Hipparcos, skip it.
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if (verbose>1)
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cout << "Error reading HIPPARCOS catalog number.\n";
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return false;
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}
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if (verbose>1)
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cout << "Testing HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
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if (!(hipstar=findStar(star.HIPCatalogNumber)))
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{
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cout << "Error finding HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
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return false;
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}
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if (hipstar->tycline)
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{
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if (verbose>0)
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cout << "Duplicate Tycho Line for HIP " << star.HIPCatalogNumber << " from Line " << lineno << ", earlier Line at " << hipstar->tycline << " ." << endl;
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}
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else
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hipstar->tycline=lineno;
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tested++;
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sscanf(buf + 309, "%d", &star.HDCatalogNumber);
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if (sscanf(buf + 224, "%f", &star.e_Mag) != 1)
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/* Tycho Database gives no error in for VMag, so we use error on BTmag
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instead.*/
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{
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/* no standard Error given even in BTmag, give it a large value so
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CheckStarRecord() will use the Tycho value if possible */
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star.e_Mag = 1000.0f;
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}
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else if (star.e_Mag >1000.0)
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{
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cout << "Huge BTmag error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
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}
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if (sscanf(buf + 41, "%f", &star.appMag) != 1)
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{
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if (verbose>0)
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cout << "Error reading magnitude for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
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}
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else if (star.e_Mag < hipstar->e_Mag)
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{
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hipstar->appMag=star.appMag;
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hipstar->e_Mag=star.e_Mag;
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changes++;
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if (verbose > 2)
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cout << " Change Mag.\n";
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}
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float parallaxError = 0.0f;
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if (sscanf(buf + 119, "%f", ¶llaxError) != 0)
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{
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if (star.parallax < 0.0f || parallaxError / star.parallax > 1.0f)
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star.parallaxError = 255u;
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else
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star.parallaxError = (uint8_t) (parallaxError / star.parallax * 200);
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}
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if (sscanf(buf + 79, "%f", &star.parallax) != 1)
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{
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if (verbose>0)
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cout << "Error reading parallax for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
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ok=false;
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}
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else if (star.parallax< 0.0)
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{
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if (hipstar->parallax< 0.0)
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{
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if (verbose>0)
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cout << "Negative parallax for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
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ok=false;
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}
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}
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else if (star.parallaxError < hipstar->parallaxError)
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{
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hipstar->parallax=star.parallax;
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hipstar->parallaxError=star.parallaxError;
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changes++;
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if (verbose > 2)
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cout << " Change Parallax.\n";
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}
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|
|
if (sscanf(buf + 105, "%f", &star.e_RA) != 1)
|
|
{
|
|
/* no standard Error givenfor Right Ascension , give it a large
|
|
value so original HIPPARCOS value will be used */
|
|
if (verbose>0)
|
|
cout << "No RA error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
star.e_RA = 2000.0f;
|
|
}
|
|
else if (star.e_RA >1000.0)
|
|
{
|
|
cout << "Huge RA error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
}
|
|
if (sscanf(buf + 112, "%f", &star.e_DE) != 1)
|
|
{
|
|
/* no standard Error given for Declination, give it a large value
|
|
so original HIPPARCOS value will be used. */
|
|
if (verbose>0)
|
|
cout << "No DE error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
star.e_DE = 2000.0f;
|
|
}
|
|
else if (star.e_DE >1000.0)
|
|
{
|
|
cout << "Huge DE error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
}
|
|
|
|
bool coordReadError = false;
|
|
if (sscanf(buf + 51, "%f", &star.ascension) != 1)
|
|
coordReadError = true;
|
|
if (sscanf(buf + 64, "%f", &star.declination) != 1)
|
|
coordReadError = true;
|
|
star.ascension = (float) (star.ascension * 24.0 / 360.0);
|
|
|
|
// Read the lower resolution coordinates in hhmmss form if we failed
|
|
// to read the coordinates in degrees. Not sure why the high resolution
|
|
// coordinates are occasionally missing . . .
|
|
if (coordReadError)
|
|
{
|
|
int hh = 0;
|
|
int mm = 0;
|
|
float seconds;
|
|
coordReadError=false;
|
|
if (sscanf(buf + 17, "%d %d %f", &hh, &mm, &seconds) != 3)
|
|
{
|
|
cout << "Error reading ascension for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
coordReadError=true;;
|
|
}
|
|
else
|
|
{
|
|
star.ascension = hh + (float) mm / 60.0f + (float) seconds / 3600.0f;
|
|
|
|
char decSign;
|
|
int deg;
|
|
if (sscanf(buf + 29, "%c%d %d %f", &decSign, °, &mm, &seconds) != 4)
|
|
{
|
|
cout << "Error reading declination for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
coordReadError=true;;
|
|
}
|
|
else
|
|
{
|
|
star.declination = deg + (float) mm / 60.0f + (float) seconds / 3600.0f;
|
|
if (decSign == '-')
|
|
star.declination = -star.declination;
|
|
}
|
|
}
|
|
}
|
|
|
|
if (!((coordReadError) || ((star.ascension==hipstar->ascension) && (star.declination==hipstar->declination))))
|
|
{
|
|
float ast=star.e_RA * star.e_DE;
|
|
float ahi=hipstar->e_RA * hipstar->e_DE;
|
|
if ((ast<ahi) || ((ast==ahi) && ((star.e_RA + star.e_DE) < (hipstar->e_RA + hipstar->e_DE))))
|
|
//if ((star.e_RA * star.e_DE) < (hipstar->e_RA * hipstar->e_DE))
|
|
{
|
|
// Error on the Tycho value is smaller, use it.
|
|
hipstar->ascension=star.ascension;
|
|
hipstar->declination=star.declination;
|
|
hipstar->e_RA=star.e_RA;
|
|
hipstar->e_DE=star.e_DE;
|
|
changes++;
|
|
if (verbose > 2)
|
|
cout << " Change Position.\n";
|
|
}
|
|
}
|
|
|
|
int asc = 0;
|
|
int dec = 0;
|
|
char decSign = ' ';
|
|
if (sscanf(buf + 299, "%d%c%d", &asc, &decSign, &dec) == 3)
|
|
{
|
|
if (decSign == '-')
|
|
dec = -dec;
|
|
star.CCDMIdentifier = asc << 16 | (dec & 0xffff);
|
|
|
|
if (star.CCDMIdentifier != hipstar->CCDMIdentifier)
|
|
{
|
|
cout << "Diffrence in CCDM Identifier for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
ok=false;
|
|
}
|
|
}
|
|
|
|
if (ok)
|
|
okStars++;
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool ReadStarRecord(istream& in)
|
|
{
|
|
HipparcosStar star;
|
|
char buf[HipStarRecordLength];
|
|
|
|
in.read(buf, HipStarRecordLength);
|
|
|
|
if (sscanf(buf + 8, "%d", &star.HIPCatalogNumber) != 1)
|
|
{
|
|
cout << "Error reading catalog number.\n";
|
|
return false;
|
|
}
|
|
|
|
sscanf(buf + 390, "%d", &star.HDCatalogNumber);
|
|
star.tycline=0;
|
|
|
|
if (sscanf(buf + 41, "%f", &star.appMag) != 1)
|
|
{
|
|
if (verbose>0)
|
|
cout << "Error reading magnitude for HIP " << star.HIPCatalogNumber << " ." << endl;
|
|
return false;
|
|
}
|
|
|
|
if (sscanf(buf + 79, "%f", &star.parallax) != 1)
|
|
{
|
|
if (verbose>0)
|
|
cout << "Error reading parallax for HIP " << star.HIPCatalogNumber << " ." << endl;
|
|
return false;
|
|
}
|
|
if (star.parallax< 0.0)
|
|
{
|
|
if (verbose>0)
|
|
cout << "Negative parallax for HIP " << star.HIPCatalogNumber << " ." << endl;
|
|
}
|
|
|
|
bool coordReadError = false;
|
|
if (sscanf(buf + 51, "%f", &star.ascension) != 1)
|
|
coordReadError = true;
|
|
if (sscanf(buf + 64, "%f", &star.declination) != 1)
|
|
coordReadError = true;
|
|
star.ascension = (float) (star.ascension * 24.0 / 360.0);
|
|
|
|
// Read the lower resolution coordinates in hhmmss form if we failed
|
|
// to read the coordinates in degrees. Not sure why the high resolution
|
|
// coordinates are occasionally missing . . .
|
|
if (coordReadError)
|
|
{
|
|
int hh = 0;
|
|
int mm = 0;
|
|
float seconds;
|
|
if (sscanf(buf + 17, "%d %d %f", &hh, &mm, &seconds) != 3)
|
|
{
|
|
cout << "Error reading ascension for HIP " << star.HIPCatalogNumber << " ." << endl;
|
|
return false;
|
|
}
|
|
star.ascension = hh + (float) mm / 60.0f + (float) seconds / 3600.0f;
|
|
|
|
char decSign;
|
|
int deg;
|
|
if (sscanf(buf + 29, "%c%d %d %f", &decSign, °, &mm, &seconds) != 4)
|
|
{
|
|
cout << "Error reading declination for HIP " << star.HIPCatalogNumber << " ." << endl;
|
|
return false;
|
|
}
|
|
star.declination = deg + (float) mm / 60.0f + (float) seconds / 3600.0f;
|
|
if (decSign == '-')
|
|
star.declination = -star.declination;
|
|
}
|
|
|
|
int asc = 0;
|
|
int dec = 0;
|
|
char decSign = ' ';
|
|
int n = 1;
|
|
if (sscanf(buf + 327, "%d%c%d", &asc, &decSign, &dec) == 3)
|
|
{
|
|
if (decSign == '-')
|
|
dec = -dec;
|
|
star.CCDMIdentifier = asc << 16 | (dec & 0xffff);
|
|
|
|
sscanf(buf + 340, "%d", &n);
|
|
star.starsWithCCDM = (uint8_t) n;
|
|
sscanf(buf + 343, "%d", &n);
|
|
star.nComponents = (uint8_t) n;
|
|
}
|
|
|
|
char* spectralType = buf + 435;
|
|
spectralType[12] = '\0';
|
|
star.stellarClass = ParseStellarClass(spectralType);
|
|
if (star.stellarClass.getSpectralClass() == StellarClass::Spectral_Unknown)
|
|
{
|
|
float bmag,vmag;
|
|
if ((sscanf(buf + 217, "%f", &bmag) == 1) &&
|
|
(sscanf(buf + 230, "%f", &vmag) == 1))
|
|
{
|
|
if (verbose>0)
|
|
cout << "Guessing Type " << spectralType << "for HIP " << star.HIPCatalogNumber << " ." << endl;
|
|
star.stellarClass = guessSpectralType(bmag - vmag, 0.0f);
|
|
}
|
|
else if (verbose>0)
|
|
cout << "Unparsable stellar class " << spectralType << "for HIP " << star.HIPCatalogNumber << " ." << endl;
|
|
}
|
|
|
|
float parallaxError = 0.0f;
|
|
if (sscanf(buf + 119, "%f", ¶llaxError) != 0)
|
|
{
|
|
if (star.parallax < 0.0f || parallaxError / star.parallax > 1.0f)
|
|
star.parallaxError = 255u;
|
|
else
|
|
star.parallaxError = (uint8_t) (parallaxError / star.parallax * 200);
|
|
}
|
|
|
|
if (sscanf(buf + 105, "%f", &star.e_RA) != 1)
|
|
{
|
|
/* no standard Error givenfor Right Ascension , give it a large
|
|
value so CheckStarRecord() will use Tycho value if possible */
|
|
star.e_RA = 1000.0f;
|
|
}
|
|
else if (star.e_RA >1000.0)
|
|
{
|
|
cout << "Huge RA error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
}
|
|
if (sscanf(buf + 112, "%f", &star.e_DE) != 1)
|
|
{
|
|
/* no standard Error given for Declination, give it a large value
|
|
so CheckStarRecord() will use the Tycho value if possible */
|
|
star.e_DE = 1000.0f;
|
|
}
|
|
else if (star.e_DE >1000.0)
|
|
{
|
|
cout << "Huge DE error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
}
|
|
|
|
if (sscanf(buf + 224, "%f", &star.e_Mag) != 1)
|
|
// No error in HIPPARCOS for VMag, use error on BTmag instead.
|
|
{
|
|
/* no standard Error given give it a large value so CheckStarRecord() will use the Tycho value if possible */
|
|
star.e_Mag = 1000.0f;
|
|
}
|
|
else if (star.e_Mag >1000.0)
|
|
{
|
|
cout << "Huge BTmag error for HIP " << star.HIPCatalogNumber << " from Line " << lineno << " ." << endl;
|
|
}
|
|
|
|
stars.push_back(star);
|
|
|
|
return true;
|
|
}
|
|
|
|
|
|
bool ReadComponentRecord(istream& in)
|
|
{
|
|
HipparcosComponent component;
|
|
char buf[HipComponentRecordLength];
|
|
|
|
in.read(buf, HipComponentRecordLength);
|
|
|
|
uint32_t hip;
|
|
if (sscanf(buf + 42, "%ud", &hip) != 1)
|
|
{
|
|
cout << "Missing HIP catalog number for component.\n";
|
|
return false;
|
|
}
|
|
|
|
component.star = findStar(hip);
|
|
if (component.star == nullptr)
|
|
{
|
|
cout << "Nonexistent HIP catalog number for component.\n";
|
|
return false;
|
|
}
|
|
|
|
if (sscanf(buf + 40, "%c", &component.componentID) != 1)
|
|
{
|
|
cout << "Missing component identifier.\n";
|
|
return false;
|
|
}
|
|
|
|
if (sscanf(buf + 175, "%c", &component.refComponentID) != 1)
|
|
{
|
|
cout << "Error reading reference component.\n";
|
|
return false;
|
|
}
|
|
if (component.refComponentID == ' ')
|
|
component.refComponentID = component.componentID;
|
|
|
|
// Read astrometric information
|
|
if (sscanf(buf + 88, "%f", &component.ascension) != 1)
|
|
{
|
|
cout << "Missing ascension for component.\n";
|
|
return false;
|
|
}
|
|
component.ascension = (float) (component.ascension * 24.0 / 360.0);
|
|
|
|
if (sscanf(buf + 101, "%f", &component.declination) != 1)
|
|
{
|
|
cout << "Missing declination for component.\n";
|
|
return false;
|
|
}
|
|
|
|
// Read photometric information
|
|
if (sscanf(buf + 49, "%f", &component.appMag) != 1)
|
|
{
|
|
cout << "Missing magnitude for component.\n";
|
|
return false;
|
|
}
|
|
|
|
// vMag and bMag may be necessary to guess the spectral type
|
|
if (sscanf(buf + 62, "%f", &component.bMag) != 1 ||
|
|
sscanf(buf + 75, "%f", &component.vMag) != 1)
|
|
{
|
|
component.bMag = component.vMag = component.appMag;
|
|
}
|
|
else
|
|
{
|
|
component.hasBV = true;
|
|
}
|
|
|
|
if (component.componentID != component.refComponentID)
|
|
{
|
|
if (sscanf(buf + 177, "%f", &component.positionAngle) != 1)
|
|
{
|
|
cout << "Missing position angle for component.\n";
|
|
return false;
|
|
}
|
|
if (sscanf(buf + 185, "%f", &component.separation) != 1)
|
|
{
|
|
cout << "Missing separation for component.\n";
|
|
return false;
|
|
}
|
|
}
|
|
|
|
components.push_back(component);
|
|
|
|
return true;
|
|
};
|
|
|
|
|
|
void BuildMultistarSystemCatalog()
|
|
{
|
|
for (auto star : stars)
|
|
{
|
|
if (star.CCDMIdentifier != NullCCDMIdentifier)
|
|
{
|
|
auto it = starSystems.find(star.CCDMIdentifier);
|
|
if (it == starSystems.end())
|
|
{
|
|
MultistarSystem* multiSystem = new MultistarSystem();
|
|
multiSystem->nStars = 1;
|
|
multiSystem->stars[0] = ☆
|
|
starSystems.insert(MultistarSystemCatalog::value_type(star.CCDMIdentifier, multiSystem));
|
|
}
|
|
else
|
|
{
|
|
MultistarSystem* multiSystem = it->second;
|
|
if (multiSystem->nStars == 4)
|
|
{
|
|
cout << "Number of stars in system exceeds 4\n";
|
|
}
|
|
else
|
|
{
|
|
multiSystem->stars[multiSystem->nStars] = ☆
|
|
multiSystem->nStars++;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void ConstrainComponentParallaxes()
|
|
{
|
|
for (const auto& ss : starSystems)
|
|
{
|
|
MultistarSystem* multiSystem = ss.second;
|
|
if (multiSystem->nStars > 1)
|
|
{
|
|
for (int i = 1; i < multiSystem->nStars; i++)
|
|
multiSystem->stars[i]->parallax = multiSystem->stars[0]->parallax;
|
|
}
|
|
#if 0
|
|
if (multiSystem->nStars > 2)
|
|
{
|
|
cout << multiSystem->nStars << ": ";
|
|
if (multiSystem->stars[0]->HDCatalogNumber != NullCatalogNumber)
|
|
cout << "HD " << multiSystem->stars[0]->HDCatalogNumber;
|
|
else
|
|
cout << "HIP " << multiSystem->stars[0]->HIPCatalogNumber;
|
|
cout << '\n';
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
|
|
|
|
void CorrectErrors()
|
|
{
|
|
for (auto& star : stars)
|
|
{
|
|
// Fix the spectral class of Capella, listed for some reason
|
|
// as M1 in the database.
|
|
if (star.HDCatalogNumber == 34029)
|
|
{
|
|
star.stellarClass = StellarClass(StellarClass::NormalStar,
|
|
StellarClass::Spectral_G, 0,
|
|
StellarClass::Lum_III);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
// Process the vector of star components and insert those that are companions
|
|
// of stars in the primary database into the companions vector.
|
|
void CreateCompanionList()
|
|
{
|
|
for (const auto& comp : components)
|
|
{
|
|
// Don't insert the reference component, as this star should already
|
|
// be in the primary database.
|
|
if (comp.componentID != comp.refComponentID)
|
|
{
|
|
int componentNumber = comp.componentID - 'A';
|
|
if (componentNumber > 0 && componentNumber < 8)
|
|
{
|
|
HipparcosStar star;
|
|
|
|
star.HDCatalogNumber = NullCatalogNumber;
|
|
star.HIPCatalogNumber = comp.star->HIPCatalogNumber |
|
|
(componentNumber << 25);
|
|
|
|
star.ascension = comp.ascension;
|
|
star.declination = comp.declination;
|
|
star.parallax = comp.star->parallax;
|
|
star.appMag = comp.appMag;
|
|
if (comp.hasBV)
|
|
star.stellarClass = guessSpectralType(comp.bMag - comp.vMag, 0.0f);
|
|
else
|
|
star.stellarClass = StellarClass(StellarClass::NormalStar,
|
|
StellarClass::Spectral_Unknown,
|
|
0, StellarClass::Lum_V);
|
|
|
|
star.CCDMIdentifier = comp.star->CCDMIdentifier;
|
|
star.parallaxError = comp.star->parallaxError;
|
|
|
|
companions.push_back(star);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void ShowStarsWithComponents()
|
|
{
|
|
cout << "\nStars with >2 components\n";
|
|
for (auto& star :stars)
|
|
{
|
|
if (star.nComponents > 2)
|
|
{
|
|
cout << (int) star.nComponents << ": ";
|
|
if (star.HDCatalogNumber != NullCatalogNumber)
|
|
cout << "HD " << star.HDCatalogNumber;
|
|
else
|
|
cout << "HIP " << star.HIPCatalogNumber;
|
|
cout << '\n';
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
void CompareTycho()
|
|
{
|
|
ifstream tycDatabase(TychoDatabaseFile, ios::in | ios::binary);
|
|
if (!tycDatabase.is_open())
|
|
{
|
|
cout << "Error opening " << TychoDatabaseFile << '\n';
|
|
cout << "You may download this file from ftp://cdsarc.u-strasbg.fr/cats/I/239/\n";
|
|
return;
|
|
}
|
|
|
|
int recs=0;
|
|
cout << "Comparing Tycho data set.\n";
|
|
okStars=0;
|
|
lineno=0;
|
|
changes=0;
|
|
while (tycDatabase.good())
|
|
{
|
|
CheckStarRecord(tycDatabase);
|
|
if (++recs % 10000 == 0)
|
|
{
|
|
if (verbose>=0)
|
|
cout << recs << " records.\n";
|
|
else
|
|
cout << ".";
|
|
cout.flush();
|
|
}
|
|
}
|
|
if (verbose<0)
|
|
cout << "\n";
|
|
else
|
|
cout << recs << " records checked, " << tested << " tested, " << okStars << " checked out OK, and " << changes << " changes were made.\n";
|
|
}
|
|
|
|
|
|
|
|
int main(int argc, char* argv[])
|
|
{
|
|
assert(sizeof(StellarClass) == 2);
|
|
verbose=0;
|
|
dropstars=1;
|
|
int c;
|
|
while((c=getopt(argc,argv,"v::qd:"))>-1)
|
|
{
|
|
switch (c)
|
|
{
|
|
case '?':
|
|
cout << "Usage: buildstardb [-v[<verbosity_level>] [-q] [-d <drop-level>\n";
|
|
exit(1);
|
|
case 'v':
|
|
if (optarg)
|
|
{
|
|
verbose=(int)atol(optarg);
|
|
if (verbose<-1)
|
|
verbose=-1;
|
|
else if (verbose>3)
|
|
verbose=3;
|
|
}
|
|
else
|
|
verbose=1;
|
|
break;
|
|
case 'd':
|
|
/* Dropstar level. 0 = don't drop stars
|
|
1 = drop only non-naked eye visible stars
|
|
2 = drop all stars with strange values */
|
|
dropstars=(int)atol(optarg);
|
|
if (dropstars<0)
|
|
dropstars=0;
|
|
else if (dropstars>2)
|
|
dropstars=2;
|
|
break;
|
|
case 'q':
|
|
verbose=-1;
|
|
}
|
|
}
|
|
|
|
// Read star records from the primary HIPPARCOS catalog
|
|
{
|
|
ifstream mainDatabase(MainDatabaseFile, ios::in | ios::binary);
|
|
if (!mainDatabase.is_open())
|
|
{
|
|
cout << "Error opening " << MainDatabaseFile << '\n';
|
|
cout << "You may download this file from ftp://cdsarc.u-strasbg.fr/cats/I/239/\n";
|
|
exit(1);
|
|
}
|
|
|
|
cout << "Reading HIPPARCOS data set.\n";
|
|
while (mainDatabase.good())
|
|
{
|
|
ReadStarRecord(mainDatabase);
|
|
if (stars.size() % 10000 == 0)
|
|
{
|
|
if (verbose>=0)
|
|
cout << stars.size() << " records.\n";
|
|
else
|
|
cout << ".";
|
|
cout.flush();
|
|
}
|
|
}
|
|
if (verbose<0)
|
|
cout << "\n";
|
|
}
|
|
if (verbose>=0)
|
|
{
|
|
cout << "Read " << stars.size() << " stars from main database.\n";
|
|
cout << "Adding the Sun...\n";
|
|
}
|
|
stars.push_back(TheSun());
|
|
|
|
if (verbose>=0)
|
|
cout << "Sorting stars...\n";
|
|
{
|
|
starIndex.reserve(stars.size());
|
|
for (auto star : stars)
|
|
{
|
|
starIndex.push_back(&star);
|
|
}
|
|
|
|
HIPCatalogComparePredicate pred;
|
|
|
|
// It may not even be necessary to sort the records, if the
|
|
// HIPPARCOS catalog is strictly ordered by catalog number. I'm not
|
|
// sure about this however,
|
|
random_shuffle(starIndex.begin(), starIndex.end());
|
|
sort(starIndex.begin(), starIndex.end(), pred);
|
|
}
|
|
|
|
// Read component records
|
|
{
|
|
ifstream componentDatabase(ComponentDatabaseFile,
|
|
ios::in | ios::binary);
|
|
if (!componentDatabase.is_open())
|
|
{
|
|
cout << "Error opening " << ComponentDatabaseFile << '\n';
|
|
cout << "You may download this file from ftp://cdsarc.u-strasbg.fr/cats/I/239/\n";
|
|
exit(1);
|
|
}
|
|
|
|
if (verbose>=0)
|
|
cout << "Reading HIPPARCOS component database.\n";
|
|
while (componentDatabase.good())
|
|
{
|
|
ReadComponentRecord(componentDatabase);
|
|
}
|
|
}
|
|
if (verbose>=0)
|
|
cout << "Read " << components.size() << " components.\n";
|
|
|
|
{
|
|
int aComp = 0, bComp = 0, cComp = 0, dComp = 0, eComp = 0, otherComp = 0;
|
|
int bvComp = 0;
|
|
for (unsigned int i = 0; i < components.size(); i++)
|
|
{
|
|
switch (components[i].componentID)
|
|
{
|
|
case 'A':
|
|
aComp++; break;
|
|
case 'B':
|
|
bComp++; break;
|
|
case 'C':
|
|
cComp++; break;
|
|
case 'D':
|
|
dComp++; break;
|
|
case 'E':
|
|
eComp++; break;
|
|
default:
|
|
otherComp++; break;
|
|
}
|
|
if (components[i].hasBV && components[i].componentID != 'A')
|
|
bvComp++;
|
|
}
|
|
|
|
if (verbose>=0)
|
|
{
|
|
cout << "A:" << aComp << " B:" << bComp << " C:" << cComp << " D:" << dComp << " E:" << eComp << '\n';
|
|
cout << "Components with B-V mag: " << bvComp << '\n';
|
|
}
|
|
}
|
|
|
|
if (verbose>=0)
|
|
cout << "Building catalog of multiple star systems.\n";
|
|
BuildMultistarSystemCatalog();
|
|
|
|
int nMultipleSystems = starSystems.size();
|
|
if (verbose>=0)
|
|
cout << "Stars in multiple star systems: " << nMultipleSystems << '\n';
|
|
|
|
ConstrainComponentParallaxes();
|
|
|
|
CorrectErrors();
|
|
|
|
CompareTycho();
|
|
|
|
// CreateCompanionList();
|
|
if (verbose>=0)
|
|
{
|
|
cout << "Companion stars: " << companions.size() << '\n';
|
|
cout << "Total stars: " << stars.size() + companions.size() << '\n';
|
|
}
|
|
|
|
if (verbose>0)
|
|
ShowStarsWithComponents();
|
|
|
|
const char* outputFile = "stars.dat";
|
|
if (argv[optind])
|
|
outputFile = argv[optind];
|
|
|
|
cout << "Writing processed star records to " << outputFile << '\n';
|
|
ofstream out(outputFile, ios::out | ios::binary);
|
|
if (!out.good())
|
|
{
|
|
cout << "Error opening " << outputFile << '\n';
|
|
exit(1);
|
|
}
|
|
|
|
s_er=0.0; // Zero the statistics values
|
|
s_erq=0.0;
|
|
n_er=0;
|
|
s_er=0.0;
|
|
s_erq=0.0;
|
|
n_er=0;
|
|
n_drop=0;
|
|
n_dub=0;
|
|
{
|
|
for (auto& star : stars)
|
|
star.analyze();
|
|
for (auto& comp : companions)
|
|
comp.analyze();
|
|
binwrite(out, stars.size() + companions.size() - n_drop);
|
|
float av_r,av_d; // average Right Ascension/Declination
|
|
av_r=s_er/((float)n_er);
|
|
av_d=s_ed/((float)n_ed);
|
|
if (verbose>=0)
|
|
{
|
|
cout << "RA Error average: " << av_r << " with Standard Error: " << sqrt((s_erq+(square(s_er)/n_er) - (2*av_r*s_er))/(n_er-1)) << " .\n";
|
|
cout << "DE Error average: " << av_d << " with Standard Error: " << sqrt((s_edq+(square(s_ed)/n_ed) - (2*av_d*s_ed))/(n_ed-1)) << " .\n";
|
|
}
|
|
for (auto& star : stars)
|
|
star.write(out);
|
|
for (auto& comp : companions)
|
|
comp.write(out);
|
|
}
|
|
cout << "Stars processed: " << stars.size() + companions.size() << " Number dropped: " << n_drop << " number dubious: " << n_dub << " .\n";
|
|
|
|
#if 0
|
|
char* hdOutputFile = "hdxref.dat";
|
|
|
|
cout << "Writing out HD cross reference to " << hdOutputFile << '\n';
|
|
ofstream hdout(hdOutputFile, ios::out | ios::binary);
|
|
if (!out.good())
|
|
{
|
|
cout << "Error opening " << hdOutputFile << '\n';
|
|
exit(1);
|
|
}
|
|
|
|
{
|
|
int nHD = 0;
|
|
for (const auto& star: stars)
|
|
{
|
|
if (star.HDCatalogNumber != NullCatalogNumber)
|
|
nHD++;
|
|
}
|
|
binwrite(hdout, nHD);
|
|
|
|
cout << nHD << " stars have HD numbers.\n";
|
|
|
|
for (const auto& star: stars)
|
|
{
|
|
if (star.HDCatalogNumber != NullCatalogNumber)
|
|
{
|
|
binwrite(hdout, star.HDCatalogNumber);
|
|
binwrite(hdout, star.HIPCatalogNumber);
|
|
}
|
|
}
|
|
}
|
|
#endif
|
|
|
|
return 0;
|
|
}
|