M 97 (Tom Harrison)

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

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M 97

Link: http://www.manoprietoobservatory.com/gallery/nebulae/66

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M 97

Link: http://www.manoprietoobservatory.com/gallery/nebulae/66

DETAILS: Imaged in December, 2004 with the 12.5" Truss RC on an ME Robotic German Equatorial Mount using an ST-10XME SBIG camera at f9, employing Tru-Balance LRGB filters, and guided by an AO-7 Adaptive Optics Device. Two hours of unbinned Luminance combined with 30 minutes each of RGB color using RegiStar, MaxIm Dl, Photoshop CS and various plug-ins. CCDSharp applied to the Luminance.

COMMENTARY: M97, the Owl Nebula, is a planetary nebula in the Constellation Ursa Major at an approximate distance of 1,630 light-years. It is a complex planetary exhibiting a cylindrical torus shelll viewed in the oblique, the eyes of the Owl being made up of matter poor regions at the ends of the cylinder. At the center is a 16 magnitude star of 0.7 solar masses. Many faint background galaxies surround the nebula, most notably the one on which a brighter star is superimposed.

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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	7471748
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M 97

M 97

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