Liller 1

Liller 1 is located within the galactic bulge, Liller 1 has a mass of around 2.3 million solar masses; this makes it one of the more massive globular clusters, along with others such as ω Centauri and Terzan 5. After Terzan 5, it has the highest rate of stellar collisions of any Milky Way globular cluster. but it may also be an unrelated background gamma ray source. These star clusters are known as "bulge fossil fragments". The globular cluster contains the rapid burster called MXB 1730-335. ==References==