M97+M108+Friends (Sigga)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 108 · M 97 · NGC 3549 · NGC 3556 · NGC 3594 · NGC 3631 · NGC 3656 · Owl nebula

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M97+M108+Friends

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M97+M108+Friends

The Owl Nebula (also known as Messier 97, M97 or NGC 3587) is a starburst ("planetary") nebula approximately 2,030 light years away in the northern constellation Ursa Major. The estimated age of the Owl Nebula is about 8,000 years.[5] It is approximately circular in cross-section with faint internal structure. It was formed from the outflow of material from the stellar wind of the central star as it evolved along the asymptotic giant branch. The nebula is arranged in three concentric shells/envelopes, with the outermost shell being about 20–30% larger than the inner shell. A mildly owl-like appearance of the nebula is the result of an inner shell that is not circularly symmetric, but instead forms a barrel-like structure aligned at an angle of 45° to the line of sight.

Messier 108 (also known as NGC 3556) is a barred spiral galaxy in the northern constellation Ursa Major. It was discovered by Pierre Méchain in 1781 or 1782.[5] From the Earth, this galaxy is seen almost edge-on.

LRGB 4 x360 from back in April 2021. A good refresher objekt as have not processed an image for 6 months or more.

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	4596263
PixInsight job	K0R5U303AETEX8DX8TB0D62BYXAOOEXM
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	11h15m23s.64
RA (top/left)	11h25m01s.86
RA (top/right)	11h05m56s.35
RA (bottom/right)	11h06m38s.60
RA (bottom/left)	11h23m58s.00

Dec (center)	+55°05′26″.6
Dec (top/left)	+57°00′27″.0
Dec (top/right)	+57°01′33″.1
Dec (bottom/right)	+53°07′47″.2
Dec (bottom/left)	+53°06′42″.9

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M97+M108+Friends

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Contribution Index (beta):

M97+M108+Friends

M97+M108+Friends

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