Trifid Nebula (KuriousGeorge)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: B85 · M 20 · NGC 6514 · Sh2-30 · Trifid nebula

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Trifid Nebula

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Trifid Nebula

From August 5th through August 15th we were very fortunate to experience extremely steady, clear and dark skies in Julian, CA. This is the fourth of 6 objects I captured during this time.

"The Trifid Nebula is an H II region located in Sagittarius 5,000 ly from Earth. 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 upper, red portion), a reflection nebula (the lower, 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 Trifid Nebula is a star-forming region in the Scutum spiral arm of the Milky Way. The most massive star that has formed in this region is HD 164492A, an O7.5III star with a mass more than 20 times the mass of the Sun. This star is surrounded by a cluster of approximately 3100 young stars."

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Distribution of astrophotographers

This table shows the number of distinct astrophotographers who have been assigned and IOTD/TP award compared to the total number of images awarded.
	Distinct awarded users	Total awarded images
Image of the day
Top picks
Top pick nominations

Distribution of subject types

This table shows the distribution of awards per subject type, compared to the popularity of images of that subject type.
	Image of the day	Top pick	Top pick nominations	Total submitted
Deep sky
Solar system
Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape

Distribution of data sources

This table shows the distribution of awards per data source, compared to the popularity of images acquired from that data source.
	Image of the day	Top pick	Top pick nominations	Total submitted
Backyard
Traveller
Own remote observatory
Amateur hosting facility
Public amaeteur data
Professional, scientific grade data
Mix of multiple sources
Other
Unknown

The “AstroBin Image of the Day and Top Picks”, or IOTD/TP, is a long-running system to promote beautiful, interesting, peculiar, or otherwise amazing astrophotographs, with a focus on technical excellence. Learn more.

Submitted The date and time when you submitted this image for IOTD/TP consideration.	...
Views by Submitters (available since September 19th, 2023) Every image is assigned to 50% of available Submitters. In the event that at least 80% of them don't view the image before its time in the IOTD/TP process expires, it's assigned to the other 50% of Submitters and the process begins anew.
Promotions by Submitters When 3 distinct Submitters promote the image, it moves on to the next stage of the process: evaluation for Top Pick status. This requirement, in addition to anonymization of images and distribution to only a subset of them, prevents biases and ensures that the best images are selected.
Promotions by Reviewers When 3 distinct Reviewers promote the image, it moves on to the next stage of the process: evaluation for IOTD status.
Early dismissal Staff members have a lot of images to inspect on a daily basis, and they can dismiss images if they believe they don't meet the requirements for IOTD/TP selection. If an image is dismissed 5 times, it's removed from the process. This streamlines the process and ensures that any bias present in promotions could be overruled by other staff members.

Status	Advanced success
Started	...
Astrometry.net job	2205529
PixInsight job	GEWLR8I5EIPOJXQ5I82PDQ30B1BR449U
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	18h02m28s.533
RA (top/left)	18h01m20s.260
RA (top/right)	18h03m34s.940
RA (bottom/right)	18h03m36s.583
RA (bottom/left)	18h01m22s.495

Dec (center)	-22°59′19″.37
Dec (top/left)	-23°14′39″.53
Dec (top/right)	-23°15′05″.51
Dec (bottom/right)	-22°43′56″.99
Dec (bottom/left)	-22°43′33″.88

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Trifid Nebula

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Image Index:

Contribution Index (beta):

Trifid Nebula

Trifid Nebula

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