M20 Trifid Nebula (Theodore Arampatzoglou)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: M 20 · NGC 6514 · Trifid nebula

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M20 Trifid Nebula

Link: http://arasteo.blogspot.gr/

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M20 Trifid Nebula

Link: http://arasteo.blogspot.gr/

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.[3] 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.

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Photographic shots were completed in the period from 14 June to 6 August and needed a total of 7 nights.

Unfortunately, in all the shots I had problem with passing clouds and high humidity .

Instruments and exposure data:

W.O FLT110 with dedicated TMB field flattener

FeatherTouch 3'' focuser

Starizona MicroTouch autofocuser

W.O ZS80 ED

SBIG ST10XME CFW9

Meade DSI

Filters: Ha 5nm Astrodon_S[II] 8nm Baader_O[III] 3nm Astrodon

Sky-Watcher EQ6 Pro

Ha:40*9min bin1x1

S[II]:23*9min bin1x1

O[III]:21*9min bin1x1

Total exposure time:12h 36min

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The refractors!
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