Xplanet 0.73
03 Aug 2000

The orbital algorithms are taken from the Third Edition of
"Astronomical Formulae for Calculators" by Jean Meeus, published by
Willman-Bell.  The rotational parameters for the other planets and
satellites are taken from Davies et al. (1996), Celestial Mechanics
63, 127--148.

Orbital formulae for Pluto are taken from Paul Schlyter's page at
http://www.m2c3.com/alpocs/tdl1999/schlyter110199/ppcomp.html

Thanks to ... 

James Baughman for the HP-UX patches, help with the autoconf macros,
and some X bug fixes.

Erik Bruhwiler of the Living Planet, Inc., for graciously supplying
the maps for my web page.

Charles Duffy for help with rpm .spec files.

Matthew Francey for help with the projections.

Marcus Harnisch for contributing the tzcoord.pl script.

Kirk Johnson for writing Xearth in the first place.  

Daniel Martin for help with the -orbit option.

Jeremie Petit for some Digital Unix help.

Henri Simoes for the french translation of the man page.

Per Erik Stendahl and Larry Reeder for catching a bug in
process_args().  Hopefully I won't be seeing too many more mysterious
segfaults. 

John Tillema for finding a bug where markers weren't positioned
properly if --center was specified.

James Troup, Jay Treacy, and Gopal Narayanan for their help packaging
Xplanet with Debian.

Jim Wray for help with building the rpm files.

Detlev Zundel for the initial debian packages, man pages, and the
orbit option.

Hari Nair
hari@alumni.caltech.edu
