M81 Group (Stephen Armen)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · Cigar Galaxy · M 81 · M 82 · NGC 3031 · NGC 3034 · NGC 3077

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M81 Group

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M81 Group

Here is a first effort at an (L) RGB image on the M81 galaxy group.

This is made from the following raw frames.

L: 12x5m

R: 20x5m

G: 18x5m

B: 18x5m

Original post was reduced 2:1, this final version is full res at ~1.2"/pixel scale

North is to the right.

First color image captured with the AP Stowaway 92mm with Field corrector.

The mount is a Takahashi Em-11 2z

Roughly 5.5 hrs total

Calibrated in AstroPixelProcessor

Processed in Pixinsight

-Used PI Photometric Color Calibration

The 92mm stowaway with field corrector is spec'd at f/7 with 644mm focal length.

It is a beautiful field with all three galaxies (M81, M82, NGC3077) gravitationally interacting with an estimated 12+ million LY distance.

NGC3077 is an interesting galaxy referred to as "disturbed". It looks like an elliptical with dust or gas stripes.

Original
Final
B

SDAA AISIG Group

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	Basic success
Started	...
Astrometry.net job	5062499
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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M81 Group

M81 Group

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Image Index:

Contribution Index (beta):

M81 Group

M81 Group

Equipment

Acquisition details

Description

Comments

Revisions

Sky plot

Histogram

In these public groups

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