Celestial hemisphere:  Southern  ·  Constellation: Sagittarius (Sgr)  ·  Contains:  M 20  ·  NGC 6514  ·  Trifid Nebula
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M20-The Trifid Nebula in Narrow Band, Ian Parr
M20-The Trifid Nebula in Narrow Band
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M20-The Trifid Nebula in Narrow Band

Getting plate-solving status, please wait...
M20-The Trifid Nebula in Narrow Band, Ian Parr
M20-The Trifid Nebula in Narrow Band
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M20-The Trifid Nebula in Narrow Band

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Description

The Trifid Nebula (M20 NGC 6514) is an H II region in the north-west of Sagittarius in a star-forming region in the Milky Way's Scutum-Centaurus Arm. 
Its name means 'three-lobe'.  The object is an unusual combination of an open cluster of stars, an emission nebula, a reflection nebula, and a dark nebula (Barnard 85).  Unlike so many objects imaged in Narrow Band that require a lot of fiddling around in the Hubble palette , this was a very simple and straight forward process in PixInsight. Although not a lot of subs, the seeing was  (1.4 -1.6 HFR) spectacular last night (we have been on a real streak of clear nights lately) and I made sure focus took advantage as the temperature dropped, and the first quarter moon kindly got out of the way, although not an issue in NB and I prefer the result to the RGB collected the previous night.

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M20-The Trifid Nebula in Narrow Band, Ian Parr