M13 RGB (Sergiy_Vakulenko)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Hercules Globular Cluster · IC 4617 · M 13 · NGC 6205

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M13 RGB

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M13 RGB

In 1716, English astronomer Edmond Halley noted, "This is but a little Patch, but it shews itself to the naked Eye, when the Sky is serene and the Moon absent." Of course, M13 is now less modestly recognized as the Great Globular Cluster in Hercules, one of the brightest globular star clusters in the northern sky. At a distance of 25,000 light-years, the cluster stars crowd into a region 150 light-years in diameter. Approaching the cluster core upwards of 100 stars could be contained in a cube just 3 light-years on a side. For comparison, the closest star to the Sun is over 4 light-years away.

In 1974, a message was sent from the radio telescope of the Arecibo towards the cluster, which contained data on the human race, DNA, the location of the Earth, and other information.

“Propeller” structure is clearly visible on the cluster's background. In the lower right side from cluster there is a IC4617 galaxy.

I finished processing this picture a couple of days before the start of the war in Ukraine, just now have time to publish it.

Sony 694 Images
Fast Newtonians

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	Advanced success
Started	...
Astrometry.net job	5674052
PixInsight job	FHY2M6V5DS3XC68FTT7I4O3EFV6NTCPV
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m41s.67
RA (top/left)	16h39m59s.13
RA (top/right)	16h43m35s.14
RA (bottom/right)	16h43m25s.80
RA (bottom/left)	16h39m47s.49

Dec (center)	+36°27′56″.2
Dec (top/left)	+36°09′08″.8
Dec (top/right)	+36°11′52″.4
Dec (bottom/right)	+36°46′40″.2
Dec (bottom/left)	+36°43′55″.3

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M13 RGB

M13 RGB

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Image Index:

Contribution Index (beta):

M13 RGB

M13 RGB

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Description

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Sky plot

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