The globular cluster M15.
Date: November 9, 2012
Constellation: Pegasus
Location: Dominion Astrophysical Observatory, Victoria, BC
Optics: TeleVue NP-127is, f/5.2
Mount: Paramount ME, guided using PhD
Camera: Canon EOS 5D Mark III
Exposure: 13 light frames of 300 seconds, ISO 800
Processing: Light frames calibrated with dark and flat frames in ImagesPlus. Light frames normalized and combined using MinMax Excluded. Image cropped.