Galaxies in Ursa Major (Jesco)

Celestial hemisphere: Northern · Constellation: Ursa Major (UMa) · Contains: Benetnasch (ηUMa) · M 101 · NGC 5457 · Part of the constellation Ursa Major (UMa) · The star 24CVn · The star 83UMa · The star Alcor (80UMa) · The star Alkaid · The star Mizar (ζUMa) · The star θBoo · The star ιBoo · The star κ2Boo · The star λBoo

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Galaxies in Ursa Major

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Galaxies in Ursa Major

Test shot to debug my StellarMate setup and prepare for summertime. I like the area in Ursa Major. Those two big bright galaxies are so close together, really neat. Shooting went really well, but unfortunately high clouds rolled in after an about an hour.

I want to collect widefield narrowband data during summer. At my latitudes there is no astronomical darkness anymore from May to August. But I hope to at least be able to get some H-Alpha on the really large emission nebulas.

My 50mm prime lens still has some coma at f/2.8 in the edges of a 9 MP crop, but I think I will live with it for now. The crop size will give me a good FOV and the fast aperture will hopefully make up for my cameras poor 25% H-Alpha sensitivity. It's all low-budget.

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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	Basic success
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Astrometry.net job	3500344
PixInsight job	n/a
PixInsight queue size	n/a
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Galaxies in Ursa Major

Galaxies in Ursa Major

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Galaxies in Ursa Major

Galaxies in Ursa Major

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