Omega Centauri (Valerio Oss)

Celestial hemisphere: Southern · Constellation: Centaurus (Cen) · Contains: NGC 5139 · Omega Centauri

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Omega Centauri

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Omega Centauri

The Omega Centauri globular cluster photographed on June 7, 2020 with the 500mm diameter and 1900mm focal @ f/3.8 remote telescope located in Chile near Rio Hurtado at the Chilescope observatory. It is possible to see well this magnificent object only from the southern hemisphere (or at least below 40th parallel N ), that's the reason I used a remote telescope with which I took 15 minutes of exposure for the R channel, 15 for the G channel and 15 for channel B, then processing the images with Pixinsight and Photoshop.

This cluster is one of the great wonders of the sky and is also visible to the naked eye on the clear nights of Chile, as I was able to verify myself in my trip to the Atacama desert last year. Initially mistaken for a star, it was in fact given the Greek name of Omega Centauri, as is done with the stars.

It contains millions of stars and has a total mass of about 5 million solar masses. It is almost as old as the universe itself, approximately 12 billion years, and is perhaps the rest of the core of a dwarf galaxy, engulfed by our Milky Way. In fact, inside there would be a black hole.

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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	3593295
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Omega Centauri

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