Frances if you want. If you've fallen in love, leera is fine, though she would have to correct people on first meeting.
I'm so glad you posted this prompt -- I put the same one up awhile back but it didn't take off and there weren't many suggestions. I love cosmological names.
My favorites (regardless of whether they've been posted already):
Adrastea (Jovian moon)
Asta (Latin: bright as a star)
Bituin (Tagalog: the stars) this is a new find for me, and I am love loving it.
Hoshiko (Japanese: star child) the meaning is just so perfect, I adore it.
Ortzi (Basque: sky)
Sitara (Hindi: star)
Apologies if any meanings are off, I don't speak with authority :)
Estella is my fave.