Triffid Nebula


The Trifid Nebula (catalogued as Messier 20 or M20 and as NGC 6514) is an H II region located in Sagittarius. It was discovered by Charles Messier on June 5, 1764. Its name means 'divided into three lobes'. The object is an unusual combination of an open cluster of stars; an emission nebula (the lower, red portion), a reflection nebula (the upper, blue portion) and a dark nebula (the apparent 'gaps' within the emission nebula that cause the trifurcated appearance; these are also designated Barnard 85). Viewed through a small telescope, the Trifid Nebula is a bright and peculiar object, and is thus a perennial favorite of amateur astronomers.

Equipment and processing

Telescope: Orion 8 inch F5

Mount: Meade LXD55

Camera: ST 8300M

Filters: Baader LRGB

Guiding: PHD

Processing: PixInsight

Capture software: Maxim

Exposures: LRGB: 17x180

Location: Parsippany,NJ


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