M81 and M82 ( Judson Graham )

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's nebulae · M 81 · M 82 · NGC 3031 · NGC 3034

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M81 and M82

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M81 and M82

Imaging Telescopes Or Lenses: Orion 8" f/3.9 Newtonian Astrograph
Imaging Cameras: Canon EOS 700D / Rebel T5i / Kiss X7i
Mounts: Celestron CGEM
Accessories: Celestron SkySync GPS · No Name Field Flattener
Software: Adobe Photoshop · O'Telescope BackyardEOS · PHD Guiding 2
Guiding Telescopes Or Lenses: Orion Mini 50mm Guide Scope
Guiding Cameras: Orion StarShoot AutoGuider

Dates:: Feb. 3, 2017
Frames:: 47×120″(1h 34′) ISO1600
14×300″(1h 10′) ISO1600
Integration:: 2h 44′
Avg. Moon age:: 6.67 days
Avg. Moon phase:: 42.40%

Basic astrometry details

Astrometry.net job: 1435394

RA center: 09h55m49s.4

DEC center: +69°20′20″

Pixel scale: 0.970 arcsec/pixel

Orientation: 263.729 degrees

Field radius: 0.721 degrees

Resolution: 4522x2869

File size: 7.1 MB

Dss did not want to stack this, i was getting all sorts of weird halos. so i resorted to ma backup program "sequator" which does a great job with stacking but left both sets of diffraction spikes!

Original
Final
B

Suburban Astrophotography

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Distribution of astrophotographers

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	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

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.
Dismissals 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	1435394
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M81 and M82

M81 and M82

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Image Index:

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M81 and M82

M81 and M82

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Description

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