How to Become a Planet by Nicole Melleby (Contemporary MG)
The Weight of the Stars by K. Ancrum (Speculative YA Romance)
The Darkness Outside Us by Eliot Schrefer (YA Sci-Fi Romance)
Shoot the Moon by Isa Arsén (Historical Fiction)
The Lady’s Guide to Celestial Mechanics by Olivia Waite (Historical Romance)
Bonus: While less about Astronomy itself, Honey Girl by Morgan Rogers stars a PhD in Astronomy
Double Bonus: Not fiction at all, The Deviant’s War by Eric Cervini tells the story of rising Astronomer Frank Kemeny