"It is our home. It defines who we are. If Kaelon II ceases to exist, so do we.
Kaelon II was the inhabited second planet in its star system. This was the homeworld of the Kaelons, a warp-capable isolationist humanoid species.
The planet was threatened in the 24th century when the Kaelon sun was dying. The Kaelons directed their efforts to revitalize it. In 2367, a leading scientist of their world was Doctor Timicin. (TNG: "Half a Life")
In 2371, the location of Kaelon II was labeled in the star chart Data and Picard were studying in stellar cartography aboard the USS Enterprise-D. (Star Trek Generations display graphic)