Messier 15 is a globular cluster in the constellation of Pegasus. At an estimated 12.0 billion years old, it is one of the oldest known globular clusters. Home to over 100,000 stars, M 15 is about 33,600 light-years from Earth, and 175 light-years in diameter.
Deforked Meade LX90 ACF SCT on a HEQ5 Pro, ZWO ASI 183mm Pro cooled to -10C, Svbony LRGB filter set, 455 x 30 seconds luminance, 388 x 30 seconds for RGB, about 7 hours in total.
Full field ar Astrobin --->
https://astrob.in/t1v9ht/0/