M101 (Roland Christen)

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 · PGC 2464645 · PGC 2468609 · PGC 2469762 · PGC 2470911 · PGC 2472607 · PGC 2816075 · PGC 49919 · Pinwheel galaxy

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M101

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M101

M101 under severe light pollution

Telescope: Astro-Physics 110 GTX with TCC at F5
Imaging Camera: ZWO ASI 6200MM Pro, cooled to +5C
Mount: Astro-Physics Mach2 encoder mount
Filter: ZWO Luminance
Software: MaximDL 6, Adobe Photoshop, Russell Croman NoiseXterminator
Exposure: 8 x 300 sec Lum
Location: Astro-Physics Machesney Park observatory

The land next to our Astro-Physics building was sold and now has an industrial charm to it, including 20 acres of powerful LED lights on high towers. They are so bright they could probably be seen from Mars. The whole thing looks like a prison yard with high fencing topped by barbed wire. The lights are of course aimed sideways instead of down, so they spread their photons right across our property and shine right on our observatory, as well as high into the sky. Altogether they are as bright as a baseball field.

Nevertheless, I tried imaging last night just to see if the sky can be salvaged using a camera. I can't see anything visually any more except Venus and the Moon. So, with galaxy season slowly receding, I shot one of our nearby galaxy neighbors with the 110mm refractor. Here she be

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	Advanced success
Started	...
Astrometry.net job	8018945
PixInsight job	ONORBDOETKPOCHWULZWGLF9KLB8HD53C
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	14h03m06s.40
RA (top/left)	14h00m16s.70
RA (top/right)	14h06m16s.91
RA (bottom/right)	14h05m58s.75
RA (bottom/left)	13h59m52s.51

Dec (center)	+54°21′09″.7
Dec (top/left)	+53°58′44″.2
Dec (top/right)	+54°02′43″.2
Dec (bottom/right)	+54°43′22″.0
Dec (bottom/left)	+54°39′18″.3

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M101

M101

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Image Index:

Contribution Index (beta):

M101

M101

Equipment

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Description

Comments

Sky plot

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