The Trifid Nebula (NGC 6514, M 20, Sh 30, RCW 147, Gum 76) (Paul Lloyd)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: B85 · HD164384 · HD164402 · HD164492 · HD164514 · HD164637 · HD164704 · HD164739 · HD164833 · LBN 27 · M 20 · NGC 6514 · Sh2-30 · Trifid Nebula

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The Trifid Nebula (NGC 6514, M 20, Sh 30, RCW 147, Gum 76)

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The Trifid Nebula (NGC 6514, M 20, Sh 30, RCW 147, Gum 76)

The Trifid Nebula has been known for some time, having been discovered by Charles Messier in 1764. It
lies close to the centre of our galaxy, from our line of sight, but at only 4,100ly away, it is a foreground
object. It lies in the Scutum-Centaurus spiral arm of our galaxy.

This nebula is an interesting mixture of emission, reflection, and dark nebulae, as well as a large open
star cluster. Its common name means “three-lobed”, referring to the arrangement of dark nebulae on the
main emission nebula. This emission nebula is powered by the very hot, bright, massive O7 class star
left of centre, which has a cluster of over 3,000 young stars surrounding it. Because of its brightness,
the nebula continues to be a favourite of amateur astronomers.

With this image I have tried to preserve the star colours in the starfield.

Telescope: William Optics FLT110 refractor + 1.37x Barlow (f=1055mm)
Camera: ZWO ASI294MC Pro
Exposure: 14 x 180 sec, gain = 125, no filter
Bortle 3-4 sky, 5% Moon waxing
Field of View: approx. 0º 40’ x 0º 30’
Image processed and prepared in PixInsight and Photoshop Elements

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Status	Advanced success
Started	...
Astrometry.net job	8848584
PixInsight job	D00QUY8LSY006AXYEOI8B0FLN90KNJ62
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	18h02m31s.89
RA (top/left)	18h04m03s.87
RA (top/right)	18h00m59s.99
RA (bottom/right)	18h00m59s.46
RA (bottom/left)	18h04m04s.26

Dec (center)	-22°57′48″.2
Dec (top/left)	-22°42′45″.3
Dec (top/right)	-22°42′46″.2
Dec (bottom/right)	-23°12′47″.7
Dec (bottom/left)	-23°12′47″.2

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The Trifid Nebula (NGC 6514, M 20, Sh 30, RCW 147, Gum 76)

The Trifid Nebula (NGC 6514, M 20, Sh 30, RCW 147, Gum 76)

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The Trifid Nebula (NGC 6514, M 20, Sh 30, RCW 147, Gum 76)

The Trifid Nebula (NGC 6514, M 20, Sh 30, RCW 147, Gum 76)

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