C2022 E3(ZTF) 11/1/2023 (*philippe Gilberton)

Celestial hemisphere: Northern · Constellation: Corona Borealis (CrB) · Contains: Solar system body or event

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C2022 E3(ZTF) 11/1/2023

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C2022 E3(ZTF) 11/1/2023

A short capture of C2022 E3 early in the morning with Canon6D and lens Canon 70-200mm f2.8. A separated processing was performed with stars and comet. I used Starnet2 for star extraction, DSS for comet stacking and PI for stars stacking. I mixed both with Photoshop. The focal lens is setup to 200mm@ f2.8 and f4.
It can be noticed the very faint long tail of the comet.

The greenish color is likely due to presence of diatomic carbon, around the comet's head. The C2 molecule, when excited by the solar ultraviolet radiation, emits mostly in infrared but its triplet state radiates at 518 nm. It is produced by photolysis of organic materials evaporated from the nucleus. It then undergoes photodissociation, with lifetime of about two days, therefore the green glow appears in the comet's head but not the tail(source wikipedia). More details here: https://en.wikipedia.org/wiki/C/2022_E3_(ZTF).

Original
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Final
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E

D

Description: better color balance

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E

Description: wide view revision

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Astrophotographes (France)

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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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Status	Advanced success
Started	...
Astrometry.net job	7078062
PixInsight job	6K9YZASOWQH6A6TUTMYUELGBKDU6MTUX
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	15h49m07s.55
RA (top/left)	15h43m16s.79
RA (top/right)	15h43m31s.20
RA (bottom/right)	15h54m43s.48
RA (bottom/left)	15h54m57s.84

Dec (center)	+37°25′03″.4
Dec (top/left)	+38°55′30″.4
Dec (top/right)	+35°53′52″.8
Dec (bottom/right)	+35°54′08″.9
Dec (bottom/left)	+38°55′27″.7

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C2022 E3(ZTF) 11/1/2023

C2022 E3(ZTF) 11/1/2023

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C2022 E3(ZTF) 11/1/2023

C2022 E3(ZTF) 11/1/2023

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