The Trifid Nebula (LRGB) (Ali Alobaidly)

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

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The Trifid Nebula (LRGB)

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The Trifid Nebula (LRGB)

The Trifid Nebula, also known as M20 or NGC 6514, is a beautiful and complex interstellar cloud located in the constellation Sagittarius. It is approximately 5,200 light years away from Earth and spans an area of about 40 light years in diameter.

The nebula is composed of a mix of gas and dust, with pink emission nebulae representing ionized hydrogen gas excited by hot, young stars and blue reflection nebulae reflecting the light of these same stars. The dark regions in the middle of the nebula are dust lanes that absorb light and make it difficult to see deeper into the cloud where new stars are forming.

In addition to its stunning visual appearance, the Trifid Nebula is also a site of active star formation. Within the nebula, there are several regions where new stars are being born - known as Bok globules - which are dense clouds of gas and dust that are collapsing under their own gravity.

With this project my focus was on learning and improving my Pixinsight stretching skills, experimenting with more sophisticated tools like arcsinh and masked stretching. I was struggling to keep the stars at bay for whatever reason and when I had them in a more desirable shape and size the contrast within the nebulosity had other plans. Using a combination of different stretching methods I came up with this!

Please note: The following tables are updated every 24 hours.

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	7936896
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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The Trifid Nebula (LRGB)

The Trifid Nebula (LRGB)

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Image Index:

Contribution Index (beta):

The Trifid Nebula (LRGB)

The Trifid Nebula (LRGB)

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

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