NGC 2903 (jnelson5474)

Celestial hemisphere: Northern · Constellation: Leo (Leo) · Contains: NGC 2903

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NGC 2903

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NGC 2903

NGC 2903 is a barred spiral galaxy that surprisingly was not cataloged by Messier and was left to be first documented by William Herschel in 1784. Located at a distance of approximately 24 million light years in the constellation Leo, it is part of the Virgo Supercluster which includes the Milky Way and Andromeda, measuring roughly 2/3 the size of the Milky Way. It is classified as a "field galaxy" which are isolated galaxies that are unaffected by neighboring gravitational forces and follow a different evolutionary pathway than galaxy clusters. They typically have a low surface brightness, symmetrical spiral arms, and usually a low rate of star formation. NGC 2903, on the other hand, demonstrates very active star formation. The blue regions in the spiral arms represent large clusters of hot young stars in addition to the pinkish-red star forming regions.

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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	9843405
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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NGC 2903

NGC 2903

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Image Index:

Contribution Index (beta):

NGC 2903

NGC 2903

Equipment

Acquisition details

Description

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