M20, Trifid Nebula

by Willem Jan Drijfhout

Objects in field: Trifid Nebula, M 20, NGC 6514, LBN 27, Sh2-30, B85

Equipment: Planewave CDK14, Moravian Instruments C3-61000 PRO

Integration: 19h 32m

Among a whole range of globulars and open star clusters in the lower altitudes of the Messier catalogue, is this little gem of a nebula. While also an HII region (Sh2-30), this nebula shows up very nicely in regular LRGB broadband imaging. That is what was applied here. During processing, an alternative technique was used to enhance sharpness, contrast and depth to the image, using frequency…