Omega Nebula (NGC 6618) (Bruno Rota Sargi)

Celestial hemisphere: Southern · Constellation: Sagittarius (Sgr) · Contains: Checkmark Nebula · IC 4701 · IC 4706 · IC 4707 · Lobster Nebula · M 17 · NGC 6596 · NGC 6618 · Swan Nebula · omega Nebula

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Omega Nebula (NGC 6618)

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Omega Nebula (NGC 6618)

The Omega Nebula is an active star-forming region located in the constellation Sagittarius, approximately 5,000 to 6,000 light-years from Earth. This young nebula, around one million years old, spans about 15 light-years in diameter and contains enough material to form about 30,000 stars like the Sun. Composed primarily of ionized hydrogen, the nebula shines brightly due to the ultraviolet radiation emitted by nearby massive stars. Discovered in 1745 by Jean-Philippe Loys de Chéseaux and included in Charles Messier's catalog in 1764, Messier 17 is of great interest to astronomers because of its intense star-forming activity and rich chemical composition. It is visible with small telescopes in the constellation Sagittarius, near the galactic plane.

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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	9867966
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Omega Nebula (NGC 6618)

Omega Nebula (NGC 6618)

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Image Index:

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Omega Nebula (NGC 6618)

Omega Nebula (NGC 6618)

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