M 13 - Hercules Globular Cluster (Mark F)

Celestial hemisphere: Northern · Constellation: Hercules (Her) · Contains: HD150679 · HD150998 · Hercules Globular Cluster · IC 4617 · M 13 · NGC 6205 · NGC 6207

Powered byPixInsight

M 13 - Hercules Globular Cluster

Powered byPixInsight

M 13 - Hercules Globular Cluster

Having seen this fantastic object in my 12" Dob frequently from my suburban driveway as well as darker sites, I had to make sure to image it as soon as it was favorably placed in the sky!

When observed visually through the eyepiece at a dark site, it looks like someone poured a fist full of salt over a dark velvety background. In good seeing, you can see the individual stars like the the grains of salt.

This was result of a rather short imaging session during a single night in LRGB.

Processing steps:

Blink to remove exposure issues (clouds, trails, guiding)

Weighted Batch Pre-Processing Script

ABE Lum/RGB

Deconvolution Lum

HDR Multiscale Transform Lum

RGB Channel Combination

Photometic Color Calibration

SCNR RGB

Arcsinh Stretch x 2 RGB

Multiscale Linear Transform RGB

LRGB Combination

Curves Transformation

MultiscaleLinearTransform

ICC Profile Transformation

Resample

NOVAC

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	3596851
PixInsight job	FD4457G7KRLRM19OXGH2MCZC71Z0DT0G
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	16h41m46s.131
RA (top/left)	16h42m11s.776
RA (top/right)	16h44m39s.696
RA (bottom/right)	16h41m19s.822
RA (bottom/left)	16h38m53s.378

Dec (center)	+36°27′02″.38
Dec (top/left)	+35°49′20″.90
Dec (top/right)	+36°42′14″.16
Dec (bottom/right)	+37°04′43″.12
Dec (bottom/left)	+36°11′34″.91

Image Index:

Contribution Index (beta):

M 13 - Hercules Globular Cluster

M 13 - Hercules Globular Cluster

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M 13 - Hercules Globular Cluster

M 13 - Hercules Globular Cluster

Equipment

Acquisition details

Description

Comments

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?

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