12P/Pons-Brooks (5) and its rotating coma (Jan Erik Vallestad)

12P/Pons-Brooks (5) and its rotating coma

Revision title: Color version

For this image I decided to try to focus on the core itself, I quickly noticed the swirl present and focused on that from there. I will post the full image processed as normal as well - but I thought these would be quite interesting to share as it's uncommon to see comet images like this, especially regarding the eruptions and how the solar winds seem to affect the materials being released into space.

It made an APOD: https://apod.nasa.gov/apod/ap240318.html

Some confirming data that also reveals the rotation of the core can be found here on SpaceWeather.com where the images have been featured:
https://spaceweather.com/archive.php?view=1&day=11&month=03&year=2024
https://spaceweather.com/archive.php?view=1&day=12&month=03&year=2024

This is a timelapse of sorts showing the rotation moving and what might be eruptions changing from time to time (dates are written on the sides):

The inverted luminance layer

The luminance layer without any denoise applied

And the "normal" edit:

I've gone back to my other 12P images and found the same rotational movement there, have a look

B

Title: Color version

Uploaded: ...

C

Title: Inverted luminance

Uploaded: ...

D

Description: Luminance without any kind of denoising applied

Uploaded: ...

E

Title: Traditional edit

Description: This is the traditional edit with no regards to over exposing the core.

Uploaded: ...

F

Description: Same as the last revision, only cropped

Uploaded: ...

G

Title: LRGB Comet

Description: Without any denoising or processing to remove left over star trails.

Uploaded: ...

I

Title: Luminance animation

Description: The main focus of the animation is to bring the core forth as much as possible. Of course there's only so much processing individual 30s exposures can handle and this is right on the very edge I believe. The eruptions do show up at the cost of a more dim tail.

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	9403123
PixInsight job	7U3W6S777SP8RYP053NRFZV2Q2NR5GCJ
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	00h23m37s.97
RA (top/left)	00h24m05s.97
RA (top/right)	00h20m56s.14
RA (bottom/right)	00h23m10s.61
RA (bottom/left)	00h26m20s.92

Dec (center)	+33°33′51″.3
Dec (top/left)	+34°08′43″.8
Dec (top/right)	+33°23′44″.10
Dec (bottom/right)	+32°59′14″.9
Dec (bottom/left)	+33°43′51″.2

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12P/Pons-Brooks (5) and its rotating coma

Revision title: Color version

12P/Pons-Brooks (5) and its rotating coma

Revision title: Color version

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12P/Pons-Brooks (5) and its rotating coma

Revision title: Color version

12P/Pons-Brooks (5) and its rotating coma

Revision title: Color version

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