So.. I did all of the constellation-locating tasks.. upgraded to the tier 4 table, and now I cant attune, OR see ANY constellations in the sky. Can't even see any STARS in the sky. Telescope doesn't find any constellations, but can see stars. Can't attune, either.
I'm on version 1.8.2. Running the Horizos III FTB modpack.
I can take screenshots if needed. Oh, and I am also able to use NBTExplorer to fix things if they are NBT-related. I also already went in and looked around in it, and didn't see anything out of the ordinary. (I also looked at all of my logs, and don't see any Astral Projection errors logged.

puts on dunce cap Apparently I had left doDaylightCycle off for too long.