SBIG ST-4000XCM
6x10min
Darks/Flats/Bias Applied
Imager Temp -10C
APM/TMB 130/780
Field Flattener
Slight Crop for Framing
Link to Larger JPEG

M25 (IC 4725) is a conspicuous cluster in the constellation Sagittarius. For some unknown reason it was never deemed worthy of an NGC number, even though it is prominent even in the smallest binocular. The cluster is 2000 light years distant with a diameter of 19 light years and 90 million years of age.

July 16, 2010