The Fell Star was a Force-imbued artifact.
The Fell Star was a charm that was in the shape of a seven-pointed star and studded with blue stones. It also had a chain attached to it. It was a powerful Force artifact and could enhance the Force powers of Force users.
The Fell Star was created at some point before the formation of the Galactic Republic and some legends claimed that it was a Sith talisman. At some point, it was placed with a number of other valuable items in a cache, that was located on the comet Resh 9376, near the shadowport Point Nadir.
The pirate Ghorus Mel and a number of his associates discovered the cache and saw the Fell Star. However, the pirates fought each other over their shares of the cache and all of them except Mel were killed. Mel made his way to Point Nadir, but was never able to return to the cache.
After a client of the Hutt Prello Anjiliac asked her to obtain the Fell Star, Prello sent the Balosar Barin Trevina to find it. Trevina heard the description of the artifact that Mel had seen in the cache and realized that it was the Fell Star, so he traveled to Point Nadir, to find it.