M101 and NGC5474 (Shannon Calvert)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: M 101 · NGC 5457 · NGC 5474 · NGC 5477

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M101 and NGC5474

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M101 and NGC5474

Despite its popularity, I only had one short session on this galaxy during a quarter moon last year, so I definitely wanted to get a better shot. My first attempt on April 10th was a clinic in Murphy's Law as waves of clouds and lousy guiding limited me to 36 frames and even those were ruined by a huge dust bunny that danced all over the frame and rendered my flats useless.

The next clear night wouldn't come until April 24th, and although I got 65 frames many of those were marred by high thin clouds. The result was pretty good, but I wanted to get more data and had to wait until May 8 to get another clear night (it's been a terrible month for weather). That night also started out with thin clouds, but they dissipated in defiance of the forecast and I had a good run of 53 steady frames that were only cut short by my own limited time.

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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
Solar system
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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.

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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.
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Status	Basic success
Started	...
Astrometry.net job	2692232
PixInsight job	n/a
PixInsight queue size	n/a
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M101 and NGC5474

M101 and NGC5474

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M101 and NGC5474

M101 and NGC5474

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