Messier 38 is an open cluster located in constellation Auriga. It has diameter 25 light-years and it’s approximately 3500 light-year away from Earth.
I managed to capture two open clusters this night already (M39 and M34) and there is still one to go (M35). Therefore I didn’t dedicate a lot of time on M38 – this means that the picture is an integration of one hour of exposure time.
Technical details:
| Telescope | Newton 254/1000 mm |
| Aperture | 254 mm |
| Focal length | 950 mm |
| Mount | Gemini G53f |
| 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 | 20x180s, Gain 94, bin 1x1, |
| Date | 2018-11-18 |