First off, I have to say, Celestia is awesome. I run it almost every day.
Like many others, I have a desire to see a more complete variety of galactic objects like nebulae, black holes and the like. One thing I thought might be acceptably customised in the current Celestia program was globular clusters. Basically I treated them as miniature galaxies and added them to galaxies.dat (well, around thirty of the nearest ones, anyway). I also added several more external galaxies such as Centaurus A, M87 in Virgo, and the Silver Coin Galaxy NGC253. Here's my modified galaxies file if anyone's interested:
http://www.geocities.com/doctorshnub/galaxies.txt
Obviously it'd be a lot nicer for globulars to resolve into stars, but then that's also true of galaxies... and besides, I'm not sure the speculative nature of what stars constitute a particular globular, goes with the philosophy behind Celestia's core content...
Cheers,
Paul
P.S. This also fixes a small error in the original galaxies.dat where M81(NGC3031) is mistakenly labelled M82.
P.P.S. I obtained the relevant data from the most excellent astronomical search engine VizieR ( http://vizier.u-strasbg.fr/viz-bin/VizieR ). Queries can be returned in an Excel-friendly format, which makes data editing a breeze - it's only a shame Celestia's text data files aren't so spreadsheet friendly... (
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