Messier 103 is an open cluster located in constellation Cassiopeia. With its distance 8500 light-year from Earth, this cluster is one of the most distant clusters from Messier’s catalogue.
The picture is a stack of 56 pictures, each 2 minutes long, i.e. nearly two hours of integration time. December is a month, which is rich with deep space objects, but it’s also rich with clouds. In whole December I got only single opportunity to take my telescope outside, therefore this is not the only deep space object, which I captured this night.
|Telescope||Newton 254/1000 mm|
|Focal length||1000 mm|
|Autoguiding||ZWO 174MM, TS 60/240 mm|
|Camera||ZWO 071 Pro @-20°C|
|Corrector||TS-Optics 2" 3-element MaxField|
|Filters||Hutech IDAS LPS-D2|
|Exposure||56x120s, Gain 94, bin 1x1,|