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Catalogue and alternative designations

The NGC 92 group of galaxies (Robert's quartet)

Type Galaxies
Position 00 22 38.6, -48 34 45 (centre of frame)
Constellation Phoenix
Camera and Telescope STXL16200 and 36.8 cm Ritchey Chretien
Focal Ratio F9
Exposure Details This is a LRGB image with Luminance = 260 minutes and Red = Green = Blue = 80 minutes (binned 2x2) using Astrodon filters
Description Robert's quartet is a compact group of four galaxies about 160 million light years away in Phoenix.  The cluster consists of NGC 87 (magnitude 14.5), NGC 88 (magnitude 15.2), NGC 89 (magnitude 14.6) and NGC 92 (magnitude 14.3).  The unrelated galaxy at the lower right is ESO 194-13 (magnitude 13.9).  The tiny galaxy at the centre of the frame is PGC 485710.