M81 Bodes Galaxy and M82 Cigar Galaxy Wide Field HaRGB (Eric Smith)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Bode's Galaxy · Cigar Galaxy · HD83838 · HD85161 · HD85458 · HD85533 · HD85828 · HD86559 · HD86574 · HD87000 · M 81 · M 82 · NGC 2959 · NGC 2961 · NGC 2976 · NGC 3031 · NGC 3034 · NGC 3077

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M81 Bodes Galaxy and M82 Cigar Galaxy Wide Field HaRGB

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M81 Bodes Galaxy and M82 Cigar Galaxy Wide Field HaRGB

A wider field view of Bodes Galaxy and the Cigar Galaxy using two imaging sessions with a OSC camera.
One of the objectives for this wide field image was to capture the IFN (Integrated Flux Nebula) that surrounds the region. This is why over 50 hours of imaging was taken to pick up the weak background signal.

Primarily the RGB was taken using a UV/UR cut filter during the moonless nights, and the Ha data was added from a narrowband session using the Optolong L-Extreme 3nm filter during brighter moonlit nights.

Each image was edited independently in Pixinsight, but blended into a composite image using a simple Pixelmath combine expression with the Combine screen option. This allowed the stronger Ha signal from the narrowband data to blend into the RGB image and help to make the weaker Ha signals standout, especially in M82 the Cigar Galaxy.

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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
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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	7338267
PixInsight job	Z0512WBW3IF1AZWB8KKU88IOPWLR2EOF
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	09h55m43s.32
RA (top/left)	10h06m58s.17
RA (top/right)	10h09m31s.32
RA (bottom/right)	09h42m36s.31
RA (bottom/left)	09h43m51s.23

Dec (center)	+69°07′31″.0
Dec (top/left)	+67°24′40″.2
Dec (top/right)	+70°44′25″.4
Dec (bottom/right)	+70°46′55″.2
Dec (bottom/left)	+67°26′46″.6

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M81 Bodes Galaxy and M82 Cigar Galaxy Wide Field HaRGB

M81 Bodes Galaxy and M82 Cigar Galaxy Wide Field HaRGB

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Image Index:

Contribution Index (beta):

M81 Bodes Galaxy and M82 Cigar Galaxy Wide Field HaRGB

M81 Bodes Galaxy and M82 Cigar Galaxy Wide Field HaRGB

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