Tag: Cassiopeia

Double Cluster NGC869 and NGC884

Two clusters visually close to each other can be located between constellations Perseus and Cassiopeia.  The clusters are relatively young (12 million years) and they are 2700 light-years far from Earth.

The picture was captured during my travel to Karpathos where I had only single wind free night.

I know, the composition should be turned by 90°. I just simply forgot to twist the camera.

Technical details:

TelescopeNewton 150/600 mm
Aperture150 mm
Focal length630 mm
MountAvalon M-Zero
AutoguidingZWO 174MM, Guidescope 30 mm
CameraZWO 071 Pro @-5°C
CorrectorExplore Scientific HR
FiltersAstronomik L-1 - UV IR Block Filter
Exposure28x180s, Gain 94, bin 1x1,

M103 Open Cluster

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.

Technical details:

TelescopeNewton 254/1000 mm
Aperture254 mm
Focal length1000 mm
MountGemini G53f
AutoguidingZWO 174MM, TS 60/240 mm
CameraZWO 071 Pro @-20°C
CorrectorTS-Optics 2" 3-element MaxField
FiltersHutech IDAS LPS-D2
Exposure56x120s, Gain 94, bin 1x1,

NGC 7635 Bubble Nebula

NGC 7635, known as Bubble Nebula is an HII region in the constellation Cassiopeia. Bubble shape structure is caused by the solar wind caused by a massive star.

Well, I must admit, the Hubble Space Telescope has a better resolution, but my telescope has a better price-performance ratio.

Telescope:Newton 254/1000 mm
Aperture:254 mm
Focal length:730 mm
MountGemini G53f
AutoguidingZWO 174MM, TS 60/240 mm
Camera:Moravian instruments G2 8300M @ -30C
Corrector:ASA 0.73 reducer
Filters:Baader Ha, OIII, SII
Exposure:39x Ha, 35x OIII, 32x SII, 300 s, bin 1×1