Trifid Nebula – BrewSky Observatory

Mouseover: 2017 Version 2005 Version

Trifid Nebula. Click image for full size version.

Common Name

Trifid Nebula

Formal Name

M 20 / NGC 6514

Date

5/18 - 5/22/2017

Constellation

Sagittarius

Location

Brewsky Observatory, Casa Grande, AZ

Equipment

Celestron Edge/11, SBig STF8300M, St-i Guider, Astrodon filters

Temperature

-5°C

Exposures

#	Exp (sec)	Filter	Bin	Net Time (hr)
19 13	900	Red	1x1 2x2
14 10	900	Green	1x1 2x2
20 14	900	Blue	1x1 2x2
26	900	HAlpha	1x1



		Total		29 hrs

Processing

2017: Calibrated in Maxim/DL
Aligned, processed with PixInsight
2005:

Notes

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 upper, red portion), a reflection nebula (the lower, 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 Trifid Nebula is a star-forming region in the Scutum spiral arm of the Milky Way. The most massive star that has formed in this region is HD 164492A, an O7.5III star with a mass more than 20 times the mass of the Sun. This star is surrounded by a cluster of approximately 3100 young stars.
- Wikipedia

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2005 Version