Messier 20 in Sagittarius
Exposure data
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2022-05-26+28 + 06-03
Skywatcher Esprit 120 with original flattner (f=840 mm)
Fornax 102 Photo
Luminance 26x6 min, R 13x6 min, G 14x6 min, B 11x6 min
06h 24min
Camera:
QHY 268m CMOS, Baader CMOS-filters
Object data Messier 20
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Emission an Reflection Nebula
30‘
Sgr
The object is an unusual combination of an open star cluster, an
emission nebula, a reflection nebula and a dark nebula (the apparent
'gaps' within the emission nebula). Besides M20, the above image
shows also the bright open star cluster M21.
5 300 light years
6.3 mag