M51 Whirlpool Galaxy (LRGB-Original; HaLRGB- versions B-G) (Bruce Donzanti)

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

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M51 Whirlpool Galaxy (LRGB-Original; HaLRGB- versions B-G)

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M51 Whirlpool Galaxy (LRGB-Original; HaLRGB- versions B-G)

Original - LRGB only.

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Version B - LRGB + Ha

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Version D - Slight adjustments, cropped and rotated

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Version G- continued fiddling around with the processing.

B

Description: This version has some Ha data added. Given this was my first time trying this, I greatly appreciate the many suggestions and advice from my buddies, Uwe, Mike F. and the other Mike (elmiko). I suspect my data are way better than my ability to process them but I'm learning and hopefully do better as time goes on.

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D

Description: Version D- Slight adjustments, cropped and rotated

Uploaded: ...

G

Description: Yet another version as I continue to play with the processing. This one is brighter showing more detail but does lose some contrast. I think I need to capture more exposure time next year to improve upon this.

Uploaded: ...

H

Description: Applied LHE to improve contrast.

Uploaded: ...

Light Polluted skies
Broadband under Bortle 7/8/9
ZWO ASI2600MM Pro
Schmidt-Cassegrain Telescope (SCT) Imagers
Suburban Astrophotography

A Collection of Recent and Favorite Images
C11" EdgeHD

Please note: The following tables are updated every 24 hours.

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
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.

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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.
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	4640860
PixInsight job	9RFARE2ZAWGN5RC11K9V3ULSKW328ZWZ
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h29m52s.254
RA (top/left)	13h29m09s.972
RA (top/right)	13h29m11s.661
RA (bottom/right)	13h30m34s.419
RA (bottom/left)	13h30m33s.103

Dec (center)	+47°11′42″.11
Dec (top/left)	+47°18′32″.84
Dec (top/right)	+47°04′34″.57
Dec (bottom/right)	+47°04′50″.90
Dec (bottom/left)	+47°18′48″.99

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Contribution Index (beta):

M51 Whirlpool Galaxy (LRGB-Original; HaLRGB- versions B-G)

M51 Whirlpool Galaxy (LRGB-Original; HaLRGB- versions B-G)

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B

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G

H

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Image Index:

Contribution Index (beta):

M51 Whirlpool Galaxy (LRGB-Original; HaLRGB- versions B-G)

M51 Whirlpool Galaxy (LRGB-Original; HaLRGB- versions B-G)

Equipment

Acquisition details

Description

Comments

Revisions

B

D

G

H

Sky plot

Histogram

In these public groups

In these collections

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