Extreme deep field: NGC5394

[sergeC14]

Hi guys,

last night, we had excellent seing in the alps, guiding was so good that it only moved by 1 pixel in DEC and a couple in RA so I imaged NGC5394. So, image taken at C14 EdegeHD focal with an Atik 11000CM. 14x10 minutes. Here is a crop (about 70%)

a another one bigger:

Some of the background galaxies are Mag 21...

Comments welcomed.

more at www.sergepetiot.com

[riklaunim]

Nice image. Those galaxies have interesting shapes (exp. the smaller one).

[sergeC14]

What peculiar about them, it that they're colliding.

Serge

[riklaunim]

And that that they aren't glowing blobs, or to dusty. They have arms and both have a unique shape Spiral galaxies look very nice.

[cotterless45]

Amazing! Well done. Looks like living up there could be fun!

[NickK]

A great picture, now you will starting thinking about higher resolution which means a larger aperture and more costly mount

Imaging is fun, not only for the intended image but the discovery of those little faint fuzzies!

[ollypenrice]

These are very impressive images full of information. Because of the f ratio getting the noise down is always going to be a long job but I suspect PixInsight would be good for the background sky. Your guiding is so good that I would be inclined to increase the sub exposure time to 15 minutes, unless you are already losing some subs. It will make a big difference to noise.

Olly

[sergeC14]

Olly,

no, no I always use all my subs! guiding when the air is that steady is not an issue. I did 15 min subs on perseus cluster, and thyey did indeed bring out loads of fainter stuff.

Serge

[Adz]

That is a great image, with superb guiding, well done! It's the NGC near M3 I was looking at last night

[dc509]

Wow, another awesome image - great to see stuff like this coming from a telescope with such a long FL. Inspiring stuff!

d

[peter shah]

very impressive shot

[Tim]

That's a cracker. So many tiny faint fuzzies, there must be 100's of millions of light years visible in this shot.

What f ratio were you imaging at Serge? f10?

Cheers

Tim

[sergeC14]

Hi Tim,

Thx. the C14 is at F/D11.

Serge

[riklaunim]

With such capabilities maybe you could do some experiments with such galaxies and globular clusers and shoot them in Ir-VIS-UV false colors? I'm planning to do something like that with my C11, but that won't happen soon. UV should show blue stragglers in clusters more prominently, and in galaxies UV and IR should also differentiate their elements more prominently (new stars, old stars and the dust).

[Beyond_Vision]

Nice to see something different like this. It's quite easy to see why it's refered to as the Heron Galaxy

Regards

Kevin

[sergeC14]

Riklaumin,

well, I'm a dinosaur, so I am not much into false colors. You can already do some of what you are saying by incresing color saturation and you can clearly differenciate old stars from new. Also, regarding your plans for your C11, do not forget SCT are absolutely **** in blue or UV wavelength! thx to corrector plate glass acting like a filter. Also, admitting your scope is at L/4 PTV in red and green, you're gonna drop down to less than L/2 in blue. So imagine in UV?...

Serge

[stolenfeather]

Superb!

Isabelle

[johnh]

Love this HiRes with excellent guiding on these small fascinating galaxies, well done.

John.

[sergeC14]

thx for the comments. there's more along the same vein being acquired just know...

[Ibbo!]

I like the not the usual supects images

very nice looking forward to the others

Steve