Banner of the Stars (星界の戦旗 Seikai no Senki) (literally Battle Flag of the Stars) is a series of anime based on novels written by Morioka Hiroyuki which serve as sequels to Crest of the Stars. This series of novels is so far not yet complete.

Novels: As of the present, there are four novels in the Seikai no Senki series. These are:

• Seikai no Senki I "Kizuna no Katachi" (Battle Flag of the Stars I "The Form of Bonds")
• Seikai no Senki II "Mamoru Beki Mono" (Battle Flag of the Stars II "That which is to be Protected")
• Seikai no Senki III "Kazoku no Shokutaku" (Battle Flag of the Stars III "A Family Dinner")
• Seikai no Senki IV "Kishimu Jikuu" (Battle Flag of the Stars IV "Cacophonous Space-Time")

So far there are TV anime adaptations of the first two books and an OVA anime adaptation of the third book was released within the second half of 2005.

Anime: Among fans, Banner of the Stars is a title used to describe all anime except Crest of the Stars (which Morioka Hiroyuki has said was not intended as the main idea of the story, but just an introduction to how Jinto and Lamhirh met). Currently there are two series and an OVA released.

From Wikipedia