Herschel 117 (North Up, East Left)
Herschel 117, also known as NGC 6638, is a globular cluster in the constellation of Sagittarius. It lies at a distance of ~26,000 light-years. This image comprises 10 x Luminance (45 seconds each) and 6 x Red, Green and Blue (60, 65 and 55 seconds each), 0.5m f/2.9 ASA Astrograph with FLI ML3200 camera at an altitude of 35 degrees on 29 August 2019. The fields of iew are 34’ x 23’ and 18' x 12', respectively.
Hills Observatory: 1 January 2013 to 26 May 2020
COMETS COMETS
DEEP SKY DEEP SKY