Skeletophilia 

Obsessive fascination or attraction to skeletons.

n. Skeletophilia:

"Erin, what are you doing with that skel-- Whoa! I'll . . . um . . . leave you two alone."

Skeletophilia by Patrius December 9, 2008

Selenophilia 

Loving the moon and finding it soothingly captivating.

"I really like the word selenophilia, it describes me very well: I could stare at the moon for hours and never get tired"

Selenophilia by afrigginglamp November 8, 2021