M20 and M8 - Lagoon and Trifford Nebula - TSA102S
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Instrument: Takahashi TSA-102S [Reduced]
Focal Ratio: 5.9
Camera: Canon 40D [Hutech Modified]
Camera Sensitivity: ISO1600
Exposure Details: 5 x 10min
Mount: Losmandy G11 + Gemini
Autoguider: Orion ED80 + DSI II
Date: August 22, 2009
Viewing Location: Albury, New South Wales [Border Stargaze 2009]
Software Enhancements: Registar, Adobe Photoshop CS2
Comments: Guiding PHD, DeepSkyStacker had difficulties in handling this file, with high density areas of stars being almost merged together. Registar maintained clear star separation in these areas.
Seeing Conditions (out of 10): 9/10
Author: Steven Mohr
Recent comments
M20 and M8
| show fullshow summaryThe Trifid Nebula (also known as Messier 20 and NGC 6514) is an H II region located in Sagittarius. The nebula's name means "divided into three lobes". The object is a remarkable collection of open cluster, emission nebula (the lower, red portion),...
The Trifid Nebula (also known as Messier 20 and NGC 6514) is an H II region located in Sagittarius. The nebula's name means "divided into three lobes". The object is a remarkable collection of open cluster, emission nebula (the lower, red portion), reflection nebula (the upper, blue portion) and dark nebula (the septation within the emission nebula causing the trifid appearance, also designated Barnard 85).
Being a bright and colourful object, the Trifid Nebula is a perennial favourite of visual and imaging amateur astronomers using telescopes of all sizes. The combination of star cluster, emission nebula, reflection nebula, and dark nebula makes it a beautiful deep sky object and photographic target.
(From Wikipedia, the free encyclopaedia)
The Lagoon Nebula (also known as Messier Object 8 (M8) and NGC 6523) is a giant interstellar cloud, classified as an emission nebula and H II region, in the constellation Sagittarius. At an estimated distance of 4,100 light-years, the Lagoon is one of only two star-forming nebulae faintly visible to the naked eye from mid-northern latitudes. In binoculars, the Lagoon is a distinct oval cloudlike patch with a definite core, like a pale celestial flower. The nebula has a fragile star cluster superimposed on it, making this one of the leading celestial sights of summer night skies.
In 2006 the first four Herbig-Haro objects were detected in the hourglass region of M8 also including HH 870. This provides the first direct evidence of active star formation by accretion in M8.
(From Wikipedia, the free encyclopaedia)
Posted by Steven Mohr on Sat Nov 14 21:17:06 2009