M101 - The Pinwheel Galaxy - Two camera combination (JohnAdastra)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5447 · NGC 5449 · NGC 5450 · NGC 5451 · NGC 5453 · NGC 5455 · NGC 5457 · NGC 5461 · NGC 5462 · NGC 5471 · NGC 5477 · Pinwheel galaxy

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M101 - The Pinwheel Galaxy - Two camera combination

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M101 - The Pinwheel Galaxy - Two camera combination

This image represents a first attempt at combing data from a color camera and a mono camera. The color camera was a ZWO ASI071MC shot through a CLS-CCD filter to obtain the RGB layers, and the mono camera was a ZWO ASI2600MM-P camera using the same filter to obtain luminance. Since each camera had a different field of view and different sampling rates, the final L layer was Registered using placing the RGB as the reference image in PixInsight StarAligment and dragging onto L. The combined image was achieved using a PixelMath formula using 70% RGB and 30% L. The finished image was then processed using normal OSC workflows.

Thanks to Bogdan Borz and others who gave tips on how to merge the two data sets.

Broadband under Bortle 7/8/9
LVAAS Astroimaging
Suburban Astrophotography
PixInsight Addicts
Light Polluted skies
The OSC Club (One Shot Camera)
Northeast Imagers

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	Distinct awarded users	Total awarded images
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Backyard
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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	4559763
PixInsight job	RVHG0UUUKK383V0QUPTTUXDBQIJW0GZM
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	14h03m09s.960
RA (top/left)	14h02m03s.155
RA (top/right)	14h06m14s.247
RA (bottom/right)	14h04m18s.130
RA (bottom/left)	14h00m05s.905

Dec (center)	+54°21′32″.92
Dec (top/left)	+53°56′30″.74
Dec (top/right)	+54°23′07″.21
Dec (bottom/right)	+54°46′32″.94
Dec (bottom/left)	+54°19′41″.49

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M101 - The Pinwheel Galaxy - Two camera combination

M101 - The Pinwheel Galaxy - Two camera combination

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M101 - The Pinwheel Galaxy - Two camera combination

M101 - The Pinwheel Galaxy - Two camera combination

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