M51 Whirlpool (DustSpeakers)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4277 · M 51 · NGC 5194 · NGC 5195 · Whirlpool Galaxy

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M51 Whirlpool

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M51 Whirlpool

Version F - 21 May 2020 - First visit this year!

- 14,15 May 2020 - Added data - L 4 hrs, RGB ~1.5 hrs each in 600 sec subs

- Reprocessed in DSS, StarTools and Gimp

Version E - 30 Apr 2019

Reprocessed from Version B's data set, 10 x 600s Canon 550D @ 400ISO with guiding

Version D - 26 Apr 2019 -

Same DSS stacked data reprocessed with StarTools

Version C - 11 Apr 2019

26 x 300s @ 1600ISO with guiding and reprocessed. There's more definition in the dust lanes in this version

Version B

10x600s Canon 550D @ 400ISO with guiding

Version A

Testing the limitations of my back garden site and equipment with just equatorial mount tracking:

- no guiding

- no darks, flats or bias

- no post processing other than clipping

9 x 120 second, ISO 1600 exposure stacked with Nebulosity

Original
E
Final
F

E

Description: 30 Apr 2019 - Reprocessed from Version B's data set

Uploaded: ...

F

Description: Data added and reprocessed

Uploaded: ...

Camera Lens Astrophotography
Light Polluted skies
Schmidt-Cassegrain Telescope (SCT) Imagers
ZWO ASI1600MM/QHY163M
UK Astro-Imaging
Narrowband imaging
Suburban Astrophotography
Images from the EdgeHD Series

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	Basic success
Started	...
Astrometry.net job	3545059
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

Image Index:

Contribution Index (beta):

M51 Whirlpool

M51 Whirlpool

Equipment

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E

F

Sky plot

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Image Index:

Contribution Index (beta):

M51 Whirlpool

M51 Whirlpool

Equipment

Acquisition details

Description

Comments

Revisions

E

F

Sky plot

Histogram

In these public groups

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