Tag Archives: The Trifid Nebula (Messier 20

The Trifid Nebula (Messier 20, M20, NGC 6514)

M20 Mosaic 3 by Denis @Disev 5 апреля

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. The image has been made as a mosaic of 3 images, 60 s exposition each.

Place: Observatory SPONLI
Telescope: LX200 122
Camera: STF 8300C
Filter: Clear
Binning: 2
Series of photo: C-1×60 /
Sky temperature: -15,8°C
Temperature: 22,4°C
Humidity: 84%
Cloudiness: Haze
Wind: 6,6 k/h
Dew Point: 19,6°C
Author: Denis@Disev

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