A Lucky Comet Leonard (Rob Johnson)

Celestial hemisphere: Northern · Constellation: Coma Berenices (Com) · Contains: Solar system body or event

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A Lucky Comet Leonard

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A Lucky Comet Leonard

A serendipitous image acquired at the end of an automated sequence of deep sky images, with the Moon present and variable thin high cloud I didn't have high hopes.
But here we have a quick and noisy image, I tried various noise reduction techniques in PI but didn't like the unnatural results.
I've only used comet align in PI once before with poor results and initial attempts were again unsuccesful. The method I used was to ignore the 'subtract' option, this then gave good results. Integrated using pixel rejection sigma high as 0.3 which eliminated most of the stars. Residual stars cloned out then used comet align again to align the comet images. A star aligned image used with StarNet to paste back the stars. I'm happy to have learned a new technique

(certainly nowhere near as good as the wonderful IOTD today!)

Broadband under Bortle 7/8/9
Light Polluted skies
Comets Imaging
N.I.N.A. Users
UK Astro-Imaging

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	Distinct awarded users	Total awarded images
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	Image of the day	Top pick	Top pick nominations	Total submitted
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	Image of the day	Top pick	Top pick nominations	Total submitted
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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.

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