Messier 15 or M15 is a globular cluster in the constellation Pegasus. It was discovered by Jean-Dominique Maraldi in 1746 and included in Charles Messier's catalogue of comet-like objects in 1764. At an estimated 12.5±1.3 billion years old, it is one of the oldest known globular clusters.
Radius: 88 light years
Age: 12.01 billion years
Absolute magnitude: -9.2
Coordinates: RA 21h 29m 58s | Dec +12° 10′ 1″
Apparent magnitude (V): 6.2
Constellation: Pegasus
Class: IV
One of two targets captured 11/9/2023 again before the clouds rolled in stacked and processed in SIRIL as well as PS, 1hr30min data. No DBF, GSO 10" RC and QHY26bc camera Optolong L Pro filter
