Comet PanSTARRS C/2017 K2 (JohnAdastra)

Celestial hemisphere: Northern · Constellation: Ophiuchus (Oph) · Contains: Solar system body or event

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Comet PanSTARRS C/2017 K2

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Comet PanSTARRS C/2017 K2

Comet PanSTARRS C/2017 K2 from July 1, 2022

While I was lucky enough to capture this solar system interloper, my southern tree line only allowed for just over an hour's worth of integration on the date in question. Since comets are such an infrequent target, my processing skills in PixInsight proved to be quite a bit rusty. However, the recent addition of Russel Croman's NoiseXTerminator and StarXTreminator scripts were of great benefit in generating the final image. In particular, StarXTerminator has a batch processing feature which allowed for stars to be removed from each calibrated, comet centered and registered subframe, which yielded a better result than removing the streaked stars from the other route of after ImageIntegration. While still not perfect in eliminating residuals, this application has now been added to my toolbox, awaiting the next great comet apparition.

Suburban Astrophotography
The OSC Club (One Shot Camera)
PixInsight Addicts
Light Polluted skies
Northeast Imagers
Broadband under Bortle 7/8/9
LVAAS Astroimaging
NJ/NY/PA Imagers

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	6007676
PixInsight job	5X4A0W1SLTUKTKKE1S039HDNYJHBDNHT
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	17h25m43s.906
RA (top/left)	17h24m38s.339
RA (top/right)	17h27m23s.647
RA (bottom/right)	17h26m49s.488
RA (bottom/left)	17h24m04s.103

Dec (center)	+01°51′47″.10
Dec (top/left)	+01°31′06″.28
Dec (top/right)	+01°43′09″.96
Dec (bottom/right)	+02°12′27″.42
Dec (bottom/left)	+02°00′23″.57

Image Index:

Contribution Index (beta):

Comet PanSTARRS C/2017 K2

Comet PanSTARRS C/2017 K2

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Image Index:

Contribution Index (beta):

Comet PanSTARRS C/2017 K2

Comet PanSTARRS C/2017 K2

Equipment

Acquisition details

Description

Comments

Sky plot

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In these public groups

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