Scientific Data Base
--------------------

# Grant Hutchison
    Supplied the correct orientations for the major planets, their moons, and a
    number of asteroids and also worked on these data files:
        Solarsys.ssc, nearstars.stc, extrasolar.ssc, extrasolar.stc, earth_locs.ssc

# Fridger Schrempp
    Complete NGC/IC galaxy database + local group galaxies (galaxies.dsc)
        Data base on globular clusters (globulars.dsc)

        Data base on visual and spectroscopic binaries (visualbins.stc,
        spectbins.stc)

        World-capitals.ssc

    Asterisms.dat

# Andrew Tribick
    Significant update of the stars.dat base based on Gaia DR2 data
    (see: https://github.com/ajtribick/celestia-gaia-stardb);
    licensed under CC-BY-SA 4.0.

        CHARM2 stellar radii (charm2.stc)

        Open cluster catalog (openclusters.dsc)

# LukeCEL
    Complete update of nearstars.stc

Texture maps
------------

# The new textures repository in their original quality can be found here:
https://www.deviantart.com/celestiaofficial/gallery/68412929/Release-Textures

   In particular, there are textures of Jupiter, Saturn, Phobos and Deimos.

# Most of the old maps are from David Seal's site: http://maps.jpl.nasa.gov/.

   Some of these maps were modified, with fictional terrain added to fill in
   gaps. The Galileo spacecraft model is also from David Seal's site (though
   it was converted from Inventor to 3DS format.)

# The Mars, Neptune, and Uranus textures and Mars bump maps are all from James
  Hastings-Trew's collection.

# Grant Hutchison

   Saturn's rings were built by Grant Hutchison from Cassini imaging.

   The Eros map is a shaded relief generated from the NEAR laser rangefinder.

# Jens Meyer

   Dione and Rhea are USGS maps colored and modified by Jens Meyer.

   The Moon map is based on data from PDS Map-A-Planet at with colors from
   Mark Robinson.

# Fridger Schrempp

   'Available data' Pluto and Charon textures using maps created by Marc Buie
   at Lowell Observatory.  Buie's maps were generated from photometric data
   gathered during six years of mutual occultations of Pluto and Charon.

   Titan's cloud texture in natural colors and its surface map at near-infrared
   wavelength. They are based on resources available from the imaging site
   (Ciclops) of the Cassini mission http://ciclops.org/

   The Phoebe base texture was created from the cylindrical map published by
   the Cassini imaging team
   (http://photojournal.jpl.nasa.gov/catalog/PIA07775)

   The Tethys textures are based on the Oct 2008 Ciclops map
   (http://photojournal.jpl.nasa.gov/catalog/PIA11116)

   The Iapetus texture was created from the Oct 2008 Ciclops map
   (http://photojournal.jpl.nasa.gov/catalog/PIA11116)

   The Lunar topography and bump maps, using Clementine laser altimeter data,
   merged in the polar regions with topographic data  from Clementine 750 nm
   oblique and nadir images.

   The Mercury map was created from a combination of Mariner 10 imaging
   with recent MESSENGER WAC images from the first two flybys, as collected
   and reprojected by Steve Albers.

# Phil Stooke

   Proteus, Janus, Prometheus and Epimetheus maps are from Phil Stooke.

   The Ida and Gaspra photomosaic maps are by Phil Stooke.

# Venus's clouds and the textures for Ganymede, Callisto and Saturn are from
  Björn Jónsson.

# Venus's surface is a copyright-free NASA image, prepared from Magellan radar
  data. The original is available at
    http://www.solarviews.com/cap/venus/venmap.htm

# The Earth texture was created by NASA using data from the MODIS instrument
  aboard the Terra satellite.

# Steve Albers
   The Io and Europa maps are by Steve Albers.

# The textures for the Uranian satellites were created by Ivan Rivera from JPL
  data. His Celestia page is: http://bruckner.homelinux.net/celestia.html

# The Hyperion map is a photomosaic assembled by Phil Stooke and
  colored by Jens Meyer.

# Amalthea is a shaded relief map by Phil Stooke, colored by Wm. Robert Johnston
  (http://www.johnstonsarchive.net/spaceart/cylmaps.html), and further modified
  by Jens Meyer and Grant Hutchison.

# The asteroid.jpg texture was created by Paul Roberts.

# The textures for the five classes of extrasolar giant planet were created by
  Andrew Tribick.

# CICLOPS

  The map of Enceladus is derived from the December 2008 CICLOPS map:
  http://ciclops.org/view/5447/Map_of_Enceladus_December_2008

Note on content from JPL
------------------------
Some content in Celestia, including texture maps and models, comes from JPL
websites. That content is subject to the JPL Image Use Policy, a copy of which
appears below (as captured on 2020-July-13). The latest version of this policy
can be found at https://www.jpl.nasa.gov/imagepolicy/. Also refer to
https://space.jpl.nasa.gov/faq.html for clarity on how textures/models are
covered.

# JPL Image Use Policy
# Unless otherwise noted, images and video on JPL public web sites (public
# sites ending with a jpl.nasa.gov address) may be used for any purpose
# without prior permission, subject to the special cases noted below.
# Publishers who wish to have authorization may print this page and
# retain it for their records; JPL does not issue image permissions on an
# image by image basis.
#
# By electing to download the material from this web site the user agrees:
# 1. that Caltech makes no representations or warranties with respect to
# ownership of copyrights in the images, and does not represent others who
# may claim to be authors or owners of copyright of any of the images, and
# makes no warranties as to the quality of the images. Caltech shall not be
# responsible for any loss or expenses resulting from the use of the images,
# and you release and hold Caltech harmless from all liability arising from
# such use.
#
# 2. to use a credit line in connection with images. Unless otherwise noted
# in the caption information for an image, the credit line should be
# "Courtesy NASA/JPL-Caltech."
#
# 3. that the endorsement of any product or service by Caltech, JPL or NASA
# must not be claimed or implied.
#
# Special Cases:
# * Prior written approval must be obtained to use the NASA insignia logo
# (the blue "meatball" insignia), the NASA logotype (the red "worm" logo)
# and the NASA seal. These images may not be used by persons who are not
# NASA employees or on products (including Web pages) that are not NASA
# sponsored. In addition, no image may be used to explicitly or implicitly
# suggest endorsement by NASA, JPL or Caltech of commercial goods or
# services. Requests to use NASA logos may be directed to Bert Ulrich, Public
# Services Division, NASA Headquarters, Code POS, Washington, DC 20546,
# telephone (202) 358-1713, fax (202) 358-4331, email bert.ulrich@hq.nasa.gov.
#
# * Prior written approval must be obtained to use the JPL logo (stylized JPL
# letters in red or other colors). Requests to use the JPL logo may be
# directed to the Institutional Communications Office, email
# instcomm@jpl.nasa.gov.
#
# * If an image includes an identifiable person, using the image for
# commercial purposes may infringe that person's right of privacy or publicity,
# and permission should be obtained from the person. NASA and JPL generally do
# not permit likenesses of current employees to appear on commercial products.
# For more information, consult the NASA and JPL points of contact listed above.
#
# * JPL/Caltech contractors and vendors who wish to use JPL images in
# advertising or public relation materials should direct requests to the
# Institutional Communications Office, email instcomm@jpl.nasa.gov.
#
# * Some image and video materials on JPL public web sites are owned by
# organizations other than JPL or NASA. These owners have agreed to make their
# images and video available for journalistic, educational and personal uses,
# but restrictions are placed on commercial uses. To obtain permission for
# commercial use, contact the copyright owner listed in each image caption.
# Ownership of images and video by parties other than JPL and NASA is noted in
# the caption material with each image.

3D Models
---------

# New space bodies models can be found in Greg Friger's 3D Asteroid Catalogue:
    https://space.frieger.com/asteroids/

# Models of Mars Global Surveyor and Mars Odyssey were created by Shrox:
    http://www.shrox.com/
  They are included under the Creative Commons Attribution 4.0 International
  License (CC BY 4.0):
    https://creativecommons.org/licenses/by/4.0/

# The Cassini and Huygens models are by Jack Higgins:
    http://homepage.eircom.net/~jackcelestia/

# The 3D model of ISS is a deconstruction of Andrew Farnaby's
  complete ISS model with textures by Bob Hundley. The model
  represents the ISS as of June 2008 and is a modification of
  the model that can be found here:
    http://www.celestiamotherlode.net/catalog/show_addon_details.php?addon_id=1199
   ISS model of June 2008 (with Kibo) by krisci3 (modified and
   converted in order to work with JPG by Ulrich Dickmann, a.k.a.
   Adirondack)

# 3D asteroid models of Toutatis, Kleopatra, Geographos, 1998 KY26, Bacchus,
  Castalia and Golevka are courtesy of Scott Hudson, Washington State
  University. Originally found here:
    http://users.tricity.wsu.edu/~hudson/Research/Asteroids/index.htm
  On August 20, 2020, Scott Hudson waived the commercial use restrictions on
  these models, permitting unrestricted use of them.

# 3D models of Amalthea, Janus, Epimetheus, Prometheus, Pandora,
  Hyperion, Larissa, Proteus, Vesta, Ida, Gaspra and Halley are derived from
  Phil Stooke's Cartography of Non-Spherical Worlds.

# The 3D model of Eros was prepared from the NEAR laser rangefinder shape model.

# The Phoebe mesh was designed by Jerry Gardner aka Jestr, jestr@ntlworld.com,
  based on Phoebe's bumpy topography display from Cassini,
  http://photojournal.jpl.nasa.gov/catalog/PIA06070