c/2021 S3 Panstarrs mono - 20240416 (KiwiAstro)

Celestial hemisphere: Northern · Constellation: Cygnus (Cyg) · Contains: LBN 156 · NGC 6846 · PGC 2017114 · PK068+01.1 · PK068+03.1 · PK069+02.1

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c/2021 S3 Panstarrs mono - 20240416

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c/2021 S3 Panstarrs mono - 20240416

C/2021 S3 (Panstarrs) is now a 8.3 magnitude comet appearing in the constellation Cygnus (17th March was 7.5 magnitude and in Aquila). It is in a densely packed starfield on the edge of the Milky Way.

It has a parabolic orbit and it closest approach to the Sun was in March 2024. I have able to image it earlier in the morning than last month as it swings around the house and into my imaging FoV. This is my 2nd capture on the morning of 16th of April starting 04h45.

Wanted to capture in mono to see the difference and it is significantly more prominent.

This image shows that the tail has straightened out compared to my previous colour image (https://astrob.in/nl66ez/0/) - perhaps it means 'a less turbulent solar wind flow as the comet enters higher solar latitudes' (feedback from the research team).

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	Advanced success
Started	...
Astrometry.net job	9682990
PixInsight job	YCCKH7EINJ357L7B6JLXEZCQNW5ZHYB1
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	19h55m53s.28
RA (top/left)	19h51m23s.44
RA (top/right)	19h55m37s.82
RA (bottom/right)	20h00m24s.47
RA (bottom/left)	19h56m09s.44

Dec (center)	+33°01′55″.1
Dec (top/left)	+32°58′18″.3
Dec (top/right)	+32°05′13″.8
Dec (bottom/right)	+33°04′58″.6
Dec (bottom/left)	+33°58′52″.4

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c/2021 S3 Panstarrs mono - 20240416

c/2021 S3 Panstarrs mono - 20240416

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c/2021 S3 Panstarrs mono - 20240416

c/2021 S3 Panstarrs mono - 20240416

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