Comet C/2020 F3 NEOWISE (Justin Hendrickson)

Contains: Solar system body or event

Comet C/2020 F3 NEOWISE

Close up with C/2020 F3 NEOWISE

Notes from July 25th, 2020:

This will most likely be the last image I take of comet NEOWISE as it’s now fading on its way out to the far reaches of the solar system, not to return for nearly seven millennia. It was a good show while it lasted, and the best comet viewing in the northern hemisphere since Hale-Bopp in ‘97. I didn’t see it mentioned in any articles, but it’s somewhat sobering to think using current technology we potentially would only have 122 days heads up, plus or minus a week or so, on a potential extinction level event caused by a newly discovered comet or asteroid. This comet was only discovered on March 27th of this year and made it’s closest approach to Earth on July 23rd. This comet is approximately 3 miles wide which is plenty big enough to ruin our day for a few centuries. Four months wouldn’t have been much time for Elon Musk to save us had its trajectory been a little more “impactful” instead of missing us by 64 million miles.

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 failed
Started	...
Astrometry.net job	4550702
PixInsight job	n/a
PixInsight queue size	n/a
PixInsight stage	n/a

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Comet C/2020 F3 NEOWISE

Comet C/2020 F3 NEOWISE

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Comet C/2020 F3 NEOWISE

Comet C/2020 F3 NEOWISE

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