Klaus_2018_M 20 C11CDK multi HP Jun9_18 -FINAL-830x1042.jpg

The Trifid Nebula - 12.5-inch Plane Wave f/8
© 2018 Klaus Brasch

The photograph was taken with 3 x 2 min frames with the 12.5-inch Plane Wave f/8, all with a spectrally modified Canon 6D coupled with an IDAS LP-V4 filter, shooting at ISO 3200-6400.

The following was retrieved from Wikipedia, the free encyclopedia, at http://en.wikipedia.org/wiki/Messier_20 on March 1, 2014
The Trifid 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."

The license terms of this written work from Wikipedia may be found at http://creativecommons.org/licenses/by-sa/3.0/


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