The Kaelons were a humanoid species that came from the planet Kaelon II.
The believed in a ritual suicide at age 60. If that person refuses to do this risks ostracism not only for himself or herself but all their family members as well. The practice is called the Resolution.
In 2367, they were forced to turn to the Federation for help. Their sun was dying and Kaelon scientist Timicin had developed a way to revitalize the sun.