M97 (Owl Nebula) and M108 (Surfboard Galaxy) (JohnEEvans)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 108 · M 97 · NGC 3556 · NGC 3587 · Owl Nebula

M97 (Owl Nebula) and M108 (Surfboard Galaxy), JohnEEvans

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M97 (Owl Nebula) and M108 (Surfboard Galaxy)

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M97 (Owl Nebula) and M108 (Surfboard Galaxy)

The Owl Nebula (M97 or NGC 3587) is a starburst, or planetary, nebula about 2,500 light-years away in Ursa Major. It is believed to be about 8,000 years old. It was formed from the outflow of material from the central star as it dies and condenses into a white dwarf. The nebula around it is arranged in three concentric shells.

The Surfboard Galaxy (M108 or NGC 3556) is a barred spiral galaxy seen almost edge on. It is about 46 million light-years away. It's about the same diameter (100,000 light-years) as our Milky Way but contains only about 1/3 to 1/2 of its mass. There is a supermassive black hole at its centre that's 24 million times the mass of our Sun, or 6 to 8 times as massive as the black hole at the centre of our Milky Way.

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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	5566586
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M97 (Owl Nebula) and M108 (Surfboard Galaxy)

M97 (Owl Nebula) and M108 (Surfboard Galaxy)

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Image Index:

Contribution Index (beta):

M97 (Owl Nebula) and M108 (Surfboard Galaxy)

M97 (Owl Nebula) and M108 (Surfboard Galaxy)

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Description

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