Ngc253

[cometcatcher]

The Sculptor Galaxy, also known as the Silver Coin or Silver Dollar Galaxy, NGC 253, is an intermediate spiral galaxy in the constellation Sculptor. The Sculptor Galaxy is a starburst galaxy, which means that it is currently undergoing a period of intense star formation. Distance 11.4 million light years.

The galaxy was discovered by Caroline Herschel in 1783 during one of her systematic comet searches.

GSO 10"F4 Newtonian, 1138 x 30 second subs or about 9.4 hours, Canon 1100D full spectrum, HEQ5 Pro unguided. Taken over 6 nights, stacked in DSS, processed in photoshop.

Full frame at astrobin ---> http://astrob.in/314177/B/

[Rigel003]

Beautifully done! Lovely colours and detail.

[Placidus]

Lovely! Great colour, deep, lots of background galaxies, clean smooth background.

The centre of 253 is somewhat posterised (due to smoothing and sharpening perhaps), with some resultant loss of detail, but the galactic fountain streaks are nicely visible.

Very well done!

[multiweb]

Great details and colors. If you fix the core one for the poolroom. Well done. I'd be chuffed with one like that :thumbsup:

[RickS]

Nice one, Kevin!

[cometcatcher]

Thanks Graeme!



Thanks M&T! Yeah I see that. Happened very early on in the processing with a masked stretch. Fixed. I have to be careful not to be too aggressive with the mask stretches as they can leave some odd looking artifacts. Something I don't see too well when processing at 2am. ;) Thanks for pointing that out.



Thanks Marc! Don't have a pool room. :P



Thanks Rick!

New version with better core ----> http://astrob.in/314177/B/

[Atmos]

You can do quite a lot with 30s exposures Kevin :thumbsup:

[cometcatcher]

Thanks Colin. Including kill the camera lol. :lol:

[Camelopardalis]

That's a beauty Kevin, well done :thumbsup:

[rustigsmed]

really good work there Kev, definitely doesn't look like a dslr shot!

[cometcatcher]

Thanks Dunk and Russell! An old DSLR now too. The 1100D is getting on a bit.

[Ryderscope]

Gee wiz, you'v done well with that set up Kev. Certainly making the HEQ5 Pro work well given the load. Thanks for sharing.

[cometcatcher]

Thanks Rodney. Yep, pushing everything to the limit.

[strongmanmike]

The core still looks a little posterised Kevin but overall a nice shot of this perennial favourite :thumbsup:

Mike

[cometcatcher]

Thanks Mike! Yeah it could be processed better. The mask stretching takes some mastering.

[Camelopardalis]

1100D is an old favourite...I’ve still got me modded/coldfingered franken-1100D...must give it some photons :lol:

[cometcatcher]

I reckon it still keeps up with modern DSLR offerings. For the most part anyway.

[Camelopardalis]

Yeah I had a 6D for a while and it was more noticeable in daytime pics...astro it was more of a widefield wonder, but a mere incremental upgrade on the end of the scope, once I’d got over the wider FOV.