Here's around 2251 alternative planet names, based on existing Latin star and constellation names, the names of Roman gods, and Lorem Ipsum filler text. I made an earlier version of this some time ago, but I like this list better.
I fed the seed list through a word generator, fixed capitalization, removed duplicates, and sorted alphabetically.
The result is a list of familiar-sounding names, with some real ones sprinkled in. They're all 1-4 syllables, fairly short, and should be easy to scan.
Enjoy!
pastebin:
http://pastebin.com/F6Uf4p3Traw:
http://pastebin.com/raw.php?i=F6Uf4p3TPreview image: