NGC 7424 in Grus

[Geoff45]

I am happy with the way this turned out. It seems that longish exposure plus decon goes a long way to combating mediocre seeing (Apologies about the decon to you know who).

The image and acquisition details are here https://www.astrobin.com/371593/


Higher res is here https://www.astrobin.com/full/371593/0/


Here are some details about the object, shamelessly lifted from Wikipedia:
NGC 7424 is intermediate between normal spirals (SA) and strongly barred galaxies (SB). Other features include the presence of a central ring-like structure and a relatively low core brightness relative to the arms. The redder color of the prominent bar indicates an older population of stars while the bright blue color of the loose arms indicates the presence of ionised hydrogen and clusters of massive young stars. NGC 7424 is listed as a member of the IC 1459 Grus Group of galaxies, but is suspected of being a "field galaxy"; that is, not gravitationally bound to any group.

[cometcatcher]

That's excellent. Really like it.

[Atmos]

There are no worms so the deconvolution has been well applied :thumbsup:
Nice smaller galaxy :)

[strongmanmike]

A potentially beaut galaxy this one and a pretty good result Geoff :thumbsup:..but seems hard to render well though, most images it never looks quite right to me (including mine from several years ago) :question: I know you had crap seeing but still, most images of this galaxy don't seem sharp, must be the structure or something :shrug: As Col said though no worms though ;) :thumbsup:

Mike

[RickS]

That's a very nice rendition of NGC 7424, Geoff! It's small and dim and quite a challenge.

[Placidus]

A very fine rendition of an extremely low surface brightness gem.

[gregbradley]

An excellent image Geoff. That is a tough one as its so dim. Your image is quite bright.

Greg.

[Geoff45]

Thanks Kevin



Thanks Colin. There are still a few artifacts if you look carefully. But yes, no worms.



Thanks Mike. It is a funny object to process and present, but it's hard to pin down exactly why. The other consideration is that it's in quite a nice field, so crop or not crop?



Thanks Rick.







Thanks Mike and Greg. Careful denoising in the linear stage and a hard push can get the brightness up.

[markas]

As others have said, it's dim and hard to render. Fine image:thumbsup:


Mark

[Jeff]

I can understand you being happy with that one Geoff.
Colours are lovely, and the "mini-bar" at the core looks quite interesting.
:thumbsup:

[Geoff45]

Thanks Mark and Jeff