Messier 55 is a globular cluster located in constellation Sagittarius. M55 is one of the closest globular cluster, having distance from the Solar System only 17’600 light-years, compared to M54, which is one of the furthest globular clusters (86’400 light-year). I managed to capture these two clusters during single night.
|Telescope||Newton 150/600 mm|
|Focal length||660 mm|
|Autoguiding||QHYCCD miniGuideScope 130 mm f/4.3, ZWO 174 MM|
|Camera||ZWO 071 Pro @-10C|
|Corrector||Explore Scientific HR coma corrector|
|Filters||Astronomik L-1 - UV IR Block Filter|
|Exposure||37x120s, Gain 134, bin 1x1,|