M2 (Gary Imm) - AstroBin

Celestial hemisphere: Southern · Constellation: Aquarius (Aqr) · Contains: M 2 · NGC 7089

Powered byPixInsight

M2

Powered byPixInsight

M2

M2 is a mag 6.6 globular cluster in the constellation Aquarius, seen in our southern sky in the fall. M2 is one of the most concentrated globular clusters, with a Shapley–Sawyer classification of 2 (out of 12).

M2 is about 40,000 light years away and is 13 arc-minutes in diameter. This corresponds to an actual diameter of about 150 light years. It contains about 150,000 stars. The overall shape is more elliptical than most other clusters. In this true color image, the majority of the stars are blue (hotter) in color.

M2 was discovered by the French astronomer Jean-Dominique Maraldi in 1746 while observing a comet. Charles Messier rediscovered it in 1760, but thought it a nebula without any stars. William Herschel, in 1783, was the first to resolve individual stars in the cluster. Under dark skies, M2 is barely visible to the naked eye.

Cloudy Nights
Globular Star Clusters

Globular Clusters
Messier Catalog (Complete)

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	3251684
PixInsight job	1D4BYM9ZM3K1KH5MUJL1U8OAK4186FPD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	21h33m27s.338
RA (top/left)	21h31m30s.437
RA (top/right)	21h35m32s.389
RA (bottom/right)	21h35m24s.294
RA (bottom/left)	21h31m22s.332

Dec (center)	-00°49′14″.71
Dec (top/left)	-01°08′00″.20
Dec (top/right)	-01°04′28″.29
Dec (bottom/right)	-00°30′25″.83
Dec (bottom/left)	-00°34′00″.98

Image Index:

Contribution Index (beta):

M2

M2

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

		...
You have no new notifications.

Image Index:

Contribution Index (beta):

M2

M2

Equipment

Acquisition details

Description

Comments

Sky plot

Histogram

In these public groups

In these collections

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