Comet Hergenrother, discovered in 1998, recently passed through the perihelion and unexpectedly erupted. The bright orange star in this image is 84 Psi Pegasi.
Date: October 8, 2012
Constellation: Pegasus
Location: Dominion Astrophysical Observatory, Victoria, BC
Optics: TeleVue NP-127is used at f/5.2
Mount: Paramount ME, guided using PhD
Camera: Canon EOS 5D Mark III
Exposure: 20 light frames of 120 seconds, ISO 800
Processing: Light frames calibrated with dark and flat frames in ImagesPlus. Light frames normalized and combined using MinMax Excluded. Image cropped.