At the Mercy of the Sky (2009)

Studio Comet brings us this visually striking anime about a bookworm-ish high school student who returns to his hometown and joins the local astronomy club. Saku Ooyagi is back, and both he and his childhood friend Mihoshi Akeno are starting school, but they haven't seen each other since a painful accident years ago! Now Mihoshi is recruiting members for the astronomy club ... and she's fiercely determined to have him join the club. Hopefully, they're relationship will improve as well! It's no star left behind, with tons of beautiful stargazing scenes, and plenty of romance as well.