M61 (Warren A. Keller)

Celestial hemisphere: Northern · Constellation: Virgo (Vir) · Contains: M 61 · NGC 4292 · NGC 4301 · NGC 4303

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M61

Link: http://www.billionsandbillions.com/m61.html

Link to TIFF/FITS: https://www.flickr.com/photos/14298125@N08/41582894334

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M61

Link: http://www.billionsandbillions.com/m61.html

Link to TIFF/FITS: https://www.flickr.com/photos/14298125@N08/41582894334

M61/NGC 4303 in Virgo is one of the largest galaxies in the Virgo Cluster, a massive group containing more than 1,300 members. With a diameter of 100,000 light years, this face-on island universe lies at a distance of 52,000,000 light years from Earth. M61 is an intermediate barred spiral galaxy with an active galactic nucleus (AGN). Classified as a starburst galaxy, M61 is undergoing an extremely high rate of star forming activity. The X-ray activity detected in its nucleus leads astronomers to suspect the existence of a supermassive black hole there. This galaxy has also been host to 7 observed supernovas, the most of any galaxy in the Messier catalog! Though 'Comet Ferret' Charles Messier was the first to observe the galaxy, he mistook it for a comet, leaving Italian astronomer Barnaba Oriani to receive the credit as M61's discoverer in May of 1779. This data was acquired in 2018 at SSRO.

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	Basic success
Started	...
Astrometry.net job	5297915
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M61

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Image Index:

Contribution Index (beta):

M61

M61

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Description

Comments

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