Going camping for three nights with family but the problem is that I have an odd sleep schedule that i'm trying to take advantage of.

Thanks to my summer neet schedule I wake up at 5pm and go to sleep at 8am. We aren't going anywhere dangerous and i want to take the opportunity to spend my nights hiking, stargazing, and taking photographs.

My question is what should i take with me? My biggest concern is having illumination. I currently only have one good flashlight but no head lamp. I'm probably going to need a ton of batteries right?