Replaces the Sun, Moon, and Night Sky with 2048x2048 textures.
I got this idea from Sashka871 and CptJoker71's HD Moon and Enhanced Night Sky mods, so make sure to check them out to see if you like them better :)
http://www.fallout3nexus.com/downloads/file.php?id=848
http://www.fallout3nexus.com/downloads/file.php?id=442

Feel free to edit/share these files to your liking

EDIT: I seperated the Stars, Moon, and Sun into 3 seperate files. The moon and Stars are the same as in the original, so you don't have to redownload them. I improved the sun, so you might want to try the new one :)

You might not need to use your ArchiveInvalidation.txt for this, I don't.
If you do happen to need to use it, here are the lines:
Sun:
textures/sky/sun.dds
textures/sky/sunglare.dds

Stars:
textures/sky/skystars.dds

Moon:
textures/sky/masser_full.dds
textures/sky/masser_half_wax.dds
textures/sky/masser_half_wan.dds
textures/sky/masser_one_wax.dds
textures/sky/masser_one_wan.dds
textures/sky/masser_three_wax.dds
textures/sky/masser_three_wan.dds
textures/sky/skymoonfull.dds
textures/sky/moonshadow.dds