The Trifid Nebula (Trevor Jones)

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

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The Trifid Nebula

Link: https://astrobackyard.com/m20-trifid-nebula/

Powered byPixInsight

The Trifid Nebula

Link: https://astrobackyard.com/m20-trifid-nebula/

Here is the Trifid Nebula (M20) captured under the dark skies of the Cherry Springs Star Party in 2018.

Messier 20 is one of my favorite summertime deep-sky astrophotography targets, and it's only available for a short time from my location.

This incredible "combination nebula" has got it all, reflection, emission, dark nebula - it's glorious.

My latest effort at processing this data using the methods described in my image processing guide.

I shot it with the ZWO ASI294MC Pro, and a generic UV/IR cut filter (Astromania). Pretty cool to see these magnificent colors out of this camera.

The telescope was an Explore Scientific ED140 refractor, which was on loan from Explore Scientific. There was no dedicated field flattener/corrector available for the scope at the time, so I used a Starfield 0.8X reducer flattener, which was a decent fit, but there was definitely something going on with the stars.

Anyway, I did my best to restore them - but still a little funny looking, especially in the lower right.

The refractors!

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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	Basic success
Started	...
Astrometry.net job	3474580
PixInsight job	n/a
PixInsight queue size	n/a
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