The Great Globular Cluster in Hercules : M13 (Bogdan Borz)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: Hercules Globular Cluster · IC 4617 · M 13 · NGC 6205 · NGC 6207

Powered byPixInsight

The Great Globular Cluster in Hercules : M13

Powered byPixInsight

The Great Globular Cluster in Hercules : M13

While shooting the Wizard I had like 2h of waiting before he was high enough in the sky. I thought of targeting something that doesn't need a lot of exposure, but finally I stayed on the cluster for several nights. I dropped half the L frames, keeping only the best ones (of course...). The Luminance is a HDR composition of 30s and 15s exposures in order to better reveal the structure of the core.

The cluster is one of the oldest objects in the observable Universe, between 12 and 14 mil years old. It contains > 500 000 stars. It was also the target a human message towards a hypothetical extraterrestrial civilisation, sent in 1974 from the Arecibo observatory in Puerto Rico (Wikipedia).

Original
Final
B

B

Description: star color improvement

Uploaded: ...

AAA : Astronomes et Astrographes Amateurs
Astrophotographes (France)
Narrowband imaging
PixInsight Addicts
AstroBin Platform open discussions community forum
Light Polluted skies
Broadband under Bortle 7/8/9
ZWO ASI1600MM/QHY163M

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	3585964
PixInsight job	I55I5N1UA5N082O6LZ3BBOIHOF3978LY
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	16h41m45s.620
RA (top/left)	16h38m36s.348
RA (top/right)	16h44m24s.298
RA (bottom/right)	16h44m55s.532
RA (bottom/left)	16h39m03s.857

Dec (center)	+36°28′10″.90
Dec (top/left)	+36°06′53″.64
Dec (top/right)	+35°58′41″.48
Dec (bottom/right)	+36°49′08″.84
Dec (bottom/left)	+36°57′26″.93

Image Index:

Contribution Index (beta):

The Great Globular Cluster in Hercules : M13

The Great Globular Cluster in Hercules : M13

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

The Great Globular Cluster in Hercules : M13

The Great Globular Cluster in Hercules : M13

Equipment

Acquisition details

Description

Comments

Revisions

B

Sky plot

Histogram

In these public groups

Notifications

AstroBin is in READ ONLY mode

Sorry :-(

Sorry :-(

Sorry :-(

Are you really sure?

Warning!

Warning!

Are you sure?

Report abuse

Slideshow settings

IOTD/TP stats (last [x] days)

Distribution of astrophotographers

Distribution of subject types

Distribution of data sources

Sorry

Sorry

Share

Upload new revision

Upload uncompressed source (XISF/FITS/PSD/TIFF)

Delete image and all its revisions?

Delete original image?

Delete all other versions?

Delete all revisions?

Delete this revision?

IOTD/TP stats

The following people like this image

The following people bookmarked this image

Warning

Flag malfunctioning thumbnails

Contains

Remove yourself as a collaborator

Plate-solving information