NGC 5139 - Omega Centauri (Gary Imm)

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

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NGC 5139 - Omega Centauri

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NGC 5139 - Omega Centauri

This magnificent object is a globular cluster located 16,000 light years away in the southern sky constellation of Centaurus. One of the few globular clusters visible to the naked eye, it is the largest globular cluster in the Milky Way at a diameter of 150 light-years and is estimated to contain 10 million stars. It is one of the earliest documented deep sky objects, described in 150 A.D. by Ptolemy. The metallicities and ages of this cluster's stars suggest that it may not have formed all at once, and perhaps could be the core remnant of a disrupted dwarf galaxy that has been absorbed by the Milky Way.

Because of its southern declination of -47°, this object only rises 12 degrees above my horizon. I waited for a steady night, but the resulting image is still somewhat blurry. Nevertheless, I am happy to be able to image such a amazing object.

The refractors!
Cloudy Nights
ZWO ASI1600MM/QHY163M
Globular Star Clusters

100 of My Favorite images
Caldwell Catalog (Complete*)
Globular Clusters

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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	2078187
PixInsight job	C9GH74DI7OFTPIB075Z66GP1JZ9VH8LC
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h26m51s.775
RA (top/left)	13h28m24s.392
RA (top/right)	13h29m04s.307
RA (bottom/right)	13h25m20s.722
RA (bottom/left)	13h24m37s.275

Dec (center)	-47°28′09″.23
Dec (top/left)	-47°56′49″.92
Dec (top/right)	-47°04′21″.56
Dec (bottom/right)	-46°59′23″.94
Dec (bottom/left)	-47°51′47″.79

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NGC 5139 - Omega Centauri

NGC 5139 - Omega Centauri

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NGC 5139 - Omega Centauri

NGC 5139 - Omega Centauri

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