Rainbow of the Cloud Star

Rainbow of the Cloud Star (虹雲星, Niji no Kumohoshi, alt. Cloud Star of the Rainbow) is a gas giant planet and the sixth planet of the Tau Ceti System.

Possible Importance of Location
In Novel Volume 7, Silent Whisper was seen passing its orbit before performing a hyperspace jump, presumably it is easier to enter hyperspace that far away from Tau Ceti. However, it might just be that Bentenmaru was around that area and Marika Kato was there to pick up Coorie and has nothing to do with the actual jump.