Messier 101 (Pinwheel Galaxy) with multiple cameras (Arnie)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5457 · NGC 5461 · NGC 5471 · NGC 5477

Messier 101 (Pinwheel Galaxy) with multiple cameras, Arnie

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Messier 101 (Pinwheel Galaxy) with multiple cameras

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Messier 101 (Pinwheel Galaxy) with multiple cameras

My long-running battle with M101 is finally at an end! After years of imaging this object with chips that were too small, filter wheels that indicated the wrong filter, dodging clouds, fighting transparency-destroying humidity and being smoked out by wildfires, I finally have an image I'm happy with. This image is a combination of wide field subs with a Nikon D750 and narrow field subs of the central area taken with my old SBIG ST-2000.

Since the standard form doesn't apply easily to multiple cameras, here are the acquisition details:

2006-04-22 to 2006-04-24
SBIG ST2000, Celestron C8 at f/6.3, self-guiding camera, -20 degrees C
Luminance - 12 x 15 minutes, unbinned
Red - 4 x 10 minutes, binned 2x2
Green - 4 x 10 minutes, binned 2x2
Blue - 4 x 10 minutes, binned 2x2

2022-04-24 to 2022-05-31
Nikon D750, Celestron C8 at f/7.33, ZWO OAG with ASI174mini guide cam
RGB - 93 x 3 minutes, ISO 200

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
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Extremely wide field
Star trails
Northern lights
Noctilucent clouds
Landscape
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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	...
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Messier 101 (Pinwheel Galaxy) with multiple cameras

Messier 101 (Pinwheel Galaxy) with multiple cameras

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Messier 101 (Pinwheel Galaxy) with multiple cameras

Messier 101 (Pinwheel Galaxy) with multiple cameras

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Acquisition details

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