M51 The 2022 Whirlpool Galaxy (Steve Argereow)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4263 · IC 4278 · M 51 · NGC 5194 · NGC 5195 · Whirlpool Galaxy

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M51 The 2022 Whirlpool Galaxy

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M51 The 2022 Whirlpool Galaxy

51 The Whirlpool Galaxy
Here is this years version of M51 taken over 5 nights from 4/27 thru 5/30/2022.

The Whirlpool Galaxy has the distinction of being the first to have its spiral nature recognized. This was achieved in 1845 by the 3rd Earl of Rosse, William Parsons, using his 72-inch (1.83 m) reflecting telescope at Birr Castle in Ireland. Parson's enormous telescope was the largest in the World at the time. M51 is 23 Million Light-Years distance, has >100 Billion Stars and a radius of 37,500 light-years.

Information Credits: Home Free Star Charts

Telescope: Explorer Scientific 127mm CF F/7.5 APO Refractor
Explore Scientific reducer X0.7 667mm Focal Length

Mount IOptron CEM40

Camera ZWO6200MMC
ZWO EFW

41 X 180 Second Exposures W/Optolong L-Pro Gain 100 Offset 50 Temp -10C 1 X1 Binning
84 X 300 Second Exposures W/Optolong L-Pro Gain 100 Offset 50 Temp -10C 1 X1 Binning
20 Dark Frames/40 Flats
Total Integration Time: 9 Hours 3 Minutes

Acquisition with SharpCap
Stacked with Deep Sky Stacker
Guiding PHD2
Processed with Astra Image

Photo taken from Seven Lakes, NC Bortle 4.5

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	Distinct awarded users	Total awarded images
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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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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
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Traveller
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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	5816618
PixInsight job	R2KNTK8TO5F2ENG0RPLKAV1TP3ALUXJC
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	13h30m04s.33
RA (top/left)	13h32m00s.10
RA (top/right)	13h32m12s.93
RA (bottom/right)	13h28m06s.73
RA (bottom/left)	13h27m57s.67

Dec (center)	+47°14′34″.9
Dec (top/left)	+46°48′37″.4
Dec (top/right)	+47°38′51″.4
Dec (bottom/right)	+47°40′24″.7
Dec (bottom/left)	+46°50′08″.4

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M51 The 2022 Whirlpool Galaxy

M51 The 2022 Whirlpool Galaxy

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M51 The 2022 Whirlpool Galaxy

M51 The 2022 Whirlpool Galaxy

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