28 Dec 2021
Messier 78 or M78, also known as NGC 2068, is a reflection nebula in the constellation Orion.
M78 is the brightest diffuse reflection nebula of a group of nebulae that includes NGC 2064, NGC 2067 and NGC 2071.
This group belongs to the Orion B molecular cloud complex and is about 1,350 light-years distant from Earth.
This LRGB-image was captured with CHI-2 ( ASA500N telescope).
Data from an older "Pro Dataset" - Nik Szymanek posted a great tutorial how to remove the satellite trails in this dataset.
Total integration time: 120 minutes.
LRGB 3 subs of 600s each, with the 4 filters.
Processing with AstroPixelProcessor and Photoshop CC with .
M78
1 credit
Filter | Avg Exp (s) | Total Exposure | Subframes |
|---|---|---|---|
| Luminance | 600 | 30m | 3 |
| Red | 400 | 20m | 3 |
| Green | 600 | 20m | 2 |
| Blue | 900 | 30m | 2 |