Comet C/2022 E3 (ZTF) (Mark Germani)

Celestial hemisphere: Northern · Constellation: Taurus (Tau) · Contains: HD30418 · LDN 1537 · LDN 1538

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Comet C/2022 E3 (ZTF)

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Comet C/2022 E3 (ZTF)

I've never attempted a comet before; they haven't been especially well-placed in the sky since I started AP a few years back, and I've only recently started using a GOTO mount. But I really wanted to give this one a go. Poor weather prevented it until one lucky night in February, while testing my new ASIAIR Mini. It was situated very close to Mars that night, but I was so focused on getting the comet that I didn't bother framing them both properly, so Mars has been cropped out.

Processing was a unique challenge - I wasn't able to use StarXTerminator to remove the stars from the individual subs as my computer is too old, so I decided to stack in Astro Pixel Processor and use rejection to remove the stars from the comet-aligned image, rather than stack in PI. There were a LOT of dim star-streaks leftover which looked like walking noise, and some terrible gradients from Mars, and what may have been some faint dark nebulosity in the area, so cleaning up the background was a chore. I spent a LONG time making masks in Photoshop and bringing them back into PI. The ion trail was there, but it was very faint so I did my best to protect it while I worked. I may try processing this in PI again later, but I'm happy with this for now.

Light Polluted skies
Optolong L-Pro filter
The refractors!
Broadband under Bortle 7/8/9
The OSC Club (One Shot Camera)
Canadian Astrophotography
Pacific Northwest Astrophotographers
Musical Imagers
William Optics ZenithStar Z61/Z81
DSLR/Mirrorless Imagers from the World
DSLR and mirrorless astrophotography

* All *
Comets
William Optics Zenithstar 61

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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.
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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	7516065
PixInsight job	KH2DGKJQWIPAXYK7XY0Z1Q21VCQ56BBD
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	04h48m59s.43
RA (top/left)	04h52m16s.40
RA (top/right)	04h52m17s.94
RA (bottom/right)	04h45m38s.73
RA (bottom/left)	04h45m43s.45

Dec (center)	+25°41′28″.0
Dec (top/left)	+24°34′26″.1
Dec (top/right)	+26°48′08″.0
Dec (bottom/right)	+26°48′02″.7
Dec (bottom/left)	+24°34′10″.7

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Comet C/2022 E3 (ZTF)

Comet C/2022 E3 (ZTF)

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Comet C/2022 E3 (ZTF)

Comet C/2022 E3 (ZTF)

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