NGC 4657 gone fishing after NGC 4631 (Rodolphe Goldsztejn)

Celestial hemisphere: Northern · Constellation: Canes Venatici (CVn) · Contains: HD110744 · NGC 4627 · NGC 4631 · NGC 4656 · NGC 4657 · PGC 100707 · PGC 1960468 · PGC 1962195 · PGC 1964488 · PGC 1966549 · PGC 1969714 · PGC 1970316 · PGC 1973273 · PGC 1977697 · PGC 1981071 · PGC 1983264 · PGC 1987386 · PGC 2832120 · PGC 3088767 · PGC 42593 · PGC 42736 · PGC 42772 · Whale Galaxy

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NGC 4657 gone fishing after NGC 4631

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NGC 4657 gone fishing after NGC 4631

[FRANCAIS]
Il va falloir patienter un peu, quelques milliards d'années avant que la galaxie de l'Hameçon (4657) n'arrive à accrocher la galaxie de la Baleine (4631) et son baleineau (4627) !
Les étoiles sur cette image ne sont pas bien rondes, il reste encore des traces de satellites... la prise s'est faite sur une seule nuit, à peine 6 heures réparties sur les 4 filtres LRGB, il a fallu faire des choix. Attendons le printemps prochain pour avoir une chance de prendre plus d'images.

[ENGLISH]
We will have to be patient and wait a few billion years before the Crowbar galaxy (4657) can catch the Whale galaxy (4631) and its calf (4627)...
The stars on this image are not well rounded, there are still traces of satellites ... the shooting was done on one night, barely 6 hours spread over the 4 LRGB filters, we had to make choices. Let's wait for next spring to have a chance to take more images.

Original
B
C
D
Final
E

B

Description: Background corrections

Uploaded: ...

C

Description: Changed the noise reduction strategy

Uploaded: ...

D

Title: Bad weather project - enhance halo surrounding the galaxies

Uploaded: ...

E

Title: LRGB reprocessing, with latest (Feb 2024) approach

Uploaded: ...

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Status	Advanced success
Started	...
Astrometry.net job	6505762
PixInsight job	O0ZDB3ZYKDSLMF1IY7EPYJWNQK80VB0Q
PixInsight queue size	n/a
PixInsight stage	TASK_LOG

RA (center)	12h42m58s.677
RA (top/left)	12h45m07s.108
RA (top/right)	12h45m08s.856
RA (bottom/right)	12h40m48s.312
RA (bottom/left)	12h40m50s.640

Dec (center)	+32°19′30″.37
Dec (top/left)	+31°42′11″.33
Dec (top/right)	+32°56′37″.10
Dec (bottom/right)	+32°56′35″.82
Dec (bottom/left)	+31°42′13″.43

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NGC 4657 gone fishing after NGC 4631

NGC 4657 gone fishing after NGC 4631

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NGC 4657 gone fishing after NGC 4631

NGC 4657 gone fishing after NGC 4631

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