STARTEXTDUMP:
The startextdump program converts a binary Celestia star database to an
easy to edit ASCII format. The command line is:
startextdump [options] [<input file> [<output file>]]
If the output file is not provided, the ASCII star catalog is written to the
standard output stream. The options are:
--old (or -o)
The input file is an old (Celestia 1.3.2 or earlier) format star database
file.
--spherical (or -s)
Output spherical coordinates (RA/declination/distance) instead of the usual
rectangular coordinates. RA is in degrees instead of the more conventional
hours/minutes/seconds. Distance is in units of light years. Also, the
apparent magnitude will be written instead of the absolute magnitude.
--hd <filename>
Dump the HD catalog numbers of an old format star database to a separate
file. Each line of the output file has an HD catalog number followed by
the corresponding HIPPARCOS number. The file can be converted to a
Celestia cross index with the makexindex tool.
MAKESTARDB:
Makestardb converts an ASCII star database created by startextdump to a
binary star database readable by Celestia--it is the reverse of the
startextdump. Makestardb does not support the old star database format;
the output files it produces are only usable with versions of Celestia
newer than 1.3.2.
The command line is:
makestardb [--spherical] [<input file> [<output file>]]
If an input or output file isn't provided, the standard input or output stream
is used. The --spherical option will cause makestardb to convert the input
positions from spherical to rectangular coordinates, and to convert the
magnitude from apparent to absolute. Use --spherical for ASCII star files
generated when startextdump is run with its own --spherical option.
MAKEXINDEX:
A cross index file maps numbers from a star catalog to Celestia catalog
numbers. Makeindex converts ASCII files containing pairs of catalog numbers
into binary cross index files. The command line is:
makexindex [<input file> [<output file>]]
Star catalog numbers in the input file must be positive integers less than
2^32 - 1.
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