M51 Whirlpool Galaxy and Friends (GW)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: IC 4263 · IC 4278 · M 51 · NGC 5194 · NGC 5195 · NGC 5198 · Whirlpool Galaxy

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M51 Whirlpool Galaxy and Friends

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M51 Whirlpool Galaxy and Friends

After nearly four months of rain and cloud this is my first image of 2021. Conditions were not great. Seeing was poor and high cloud prevailed. Light pollution was significant.

M51 proved to be a good target for both image capture and image processing practice. The IDAS LPS D2 Filter surpassed expectations. Eliminated most of the LED light pollution from the neighbours security lights and street lighting. This filter seems to be giving me better results than the Optolong L-Pro. I have to admit processing this image was fun and well rewarding.

The 180 seconds subs used was too long as the stars seem to be over-saturated. I will be using 120 seconds exposure in the next set of images. Tilt may also be present in my optical train as seen by the presences of asymmetrically positioned elongated stars.

Suburban Astrophotography
Beginners AP

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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	Advanced success
Started	...
Astrometry.net job	4359871
PixInsight job	1A5QOP0236BXTKT7JB53VZBXLDMNCUJE
PixInsight queue size	n/a
PixInsight stage	n/a

RA (center)	13h29m44s.132
RA (top/left)	13h32m33s.154
RA (top/right)	13h30m51s.284
RA (bottom/right)	13h26m52s.244
RA (bottom/left)	13h28m38s.557

Dec (center)	+47°08′24″.84
Dec (top/left)	+46°41′49″.29
Dec (top/right)	+47°45′59″.15
Dec (bottom/right)	+47°34′44″.56
Dec (bottom/left)	+46°30′48″.48

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M51 Whirlpool Galaxy and Friends

M51 Whirlpool Galaxy and Friends

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M51 Whirlpool Galaxy and Friends

M51 Whirlpool Galaxy and Friends

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