M97 (NGC 3587; Owl Nebula) (Greg Erianne)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 97 · NGC 3587 · Owl Nebula · PK148+57.1

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M97 (NGC 3587; Owl Nebula)

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M97 (NGC 3587; Owl Nebula)

M97 (NGC 3587; Owl Nebula) is a roughly circular nebula centered about its central dying star (center of image, slightly bluish), which is becoming a white dwarf. The nebula is about 2,000 light years away from Earth, is located just under the Bowl of the Big Dipper asterism in the constellation of Ursa Major and is believed to be 6,000 to 8,000 years old.

The material contained in Owl Nebula is believed to be slightly over 10% of the mass of the sun and is comprised of several gases including hydrogen, helium, nitrogen, oxygen, and sulfur. In this image, the central core of the nebula is largely oxygen shown in blue-green, while the outer shell is primarily hydrogen gas shown in red.

M97’s owl-like appearance results from an inner shell that is not symmetrical, but rather it forms a barrel-like structure aligned at an angle of 45° to our line of sight from Earth.

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	9358421
PixInsight job	TEFJ1UH25JD3JAOOHVOA9FJ41V15AUJ1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h14m51s.627
RA (top/left)	11h13m41s.953
RA (top/right)	11h13m45s.210
RA (bottom/right)	11h16m00s.627
RA (bottom/left)	11h15m59s.130

Dec (center)	+55°01′04″.42
Dec (top/left)	+55°14′43″.92
Dec (top/right)	+54°47′07″.81
Dec (bottom/right)	+54°47′22″.11
Dec (bottom/left)	+55°14′58″.67

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M97 (NGC 3587; Owl Nebula)

M97 (NGC 3587; Owl Nebula)

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Image Index:

Contribution Index (beta):

M97 (NGC 3587; Owl Nebula)

M97 (NGC 3587; Owl Nebula)

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