I have been working on my NGC 253 data so I could zoom right in to reveal the tiny features in its core and complex galactic arms.
The IIS attachment to this post is a way too close up 200% super zoom into the very core (see the bright spot in the centre, where there is certainly a super massive black hole) , just for fun but to see the whole galaxy at high resolution look here:
Loved the Metropolis in the Sky image, Mike. The IIS attachment no so much. Looks better with context!
Cheers,
Rick.
He he, yeh that attachment was just a too-close crop so that readers of the post would bother to click on the links to see the larger wider field files ...there are some lazy buggers on here who will only look at the attachments Still, I haven't seen such a close up of the centre of NGC 253 before..have you..?
Yes with the 16803 chip the AG12 provides me with everything really, both close up and wide capabilities...I am about to start use an SXVR-H694 and OAG soon ...that should be interesting, so stay tuned
An impressive image Mike. What stands out for me are those distant galaxies all the way out to the edge of the image at full resolution.
Coming from a DSLR background where I simply can't get anywhere near that, the skill and equipment required to achieve such fine detail is most admired. I just love these images that give the subject a sense of depth (and time too I suppose).
Yes with the 16803 chip the AG12 provides me with everything really, both close up and wide capabilities...I am about to start use an SXVR-H694 and OAG soon ...that should be interesting, so stay tuned
Mike
I just looked up that SXVR694 camera - wow. Impressive specs. Sony is the future of astrophotography for sure.
Do you know they make a backthinned CMOS sensor which has no circuitry around the pixels leaving full coverage (CMOS sensors have an area around each pixel for circuitry) - the circuitry is stacked onto the back of the sensor. They mass produce it, Exmor -R sensor.13mp.
It's a lovely image Mike - I like it, but it's just south of the overcooked border for me.
Cheers, Marcus
Sooo... is south on the good side of over cooked or the bad side...
Quote:
Originally Posted by tornado33
I like those numerous bright red hydrogen regions. Imagine how full of bright nebulae the skies of 253 would be to any life forms living there.
Scott
Yes, I guess you're right Scotty, glad you found something interesting about the image too, actually for me it is those amazing rising gas/dust (?) tendrils visible across the galaxy disc that amaze me, one of my intentions of (over cooking) was to make these stand out
Quote:
Originally Posted by midnight
An impressive image Mike. What stands out for me are those distant galaxies all the way out to the edge of the image at full resolution.
Coming from a DSLR background where I simply can't get anywhere near that, the skill and equipment required to achieve such fine detail is most admired. I just love these images that give the subject a sense of depth (and time too I suppose).
Cheers,
Darrin...
On ya Darrin, glad you enjoyed the view
Quote:
Originally Posted by gregbradley
I just looked up that SXVR694 camera - wow. Impressive specs. Sony is the future of astrophotography for sure.
Do you know they make a backthinned CMOS sensor which has no circuitry around the pixels leaving full coverage (CMOS sensors have an area around each pixel for circuitry) - the circuitry is stacked onto the back of the sensor. They mass produce it, Exmor -R sensor.13mp.
Greg.
Interesting, will you be getting one of these for yourself then..?
Not sure if it is the compression but the background has some severe gradients/blotchiness on my machine?
I bit lumpy/sharp for me but it is a look I haven't seen before. I'm jealous of your aperture/resolution!
Not sure if it is the compression but the background has some severe gradients/blotchiness on my machine?
I bit lumpy/sharp for me but it is a look I haven't seen before. I'm jealous of your aperture/resolution!
Very nice, Mike - beautiful saturation and amazing detail!
Quote:
Originally Posted by strongmanmike
Which image version are you referring to?
I can also see visible bands of grey extending from the galaxy with visible pixellation. Assuming it's not there in your uncompressed work file, it seems like it may be a JPEG compression artefact?
Very nice, Mike - beautiful saturation and amazing detail!
I can also see visible bands of grey extending from the galaxy with visible pixellation. Assuming it's not there in your uncompressed work file, it seems like it may be a JPEG compression artefact?
Yes some slight rasterisiation remains in that area from the aggressive stretching and curves used to to reveal the ultra faint outer halo. Because it resulted from a very early stage in the processing (last year ) I haven't gone back and rectified it as I considered it a very minor blemish
As for the severe gradients/blotchiness that Peter mentions, I think he is refering to the galactic cirrus dust visible across the fuller frame. It is really faint stuff in this area, much fainter than say the Cirrus dust around M82 and M81 for example, so I had to really push the data to get it to show up and it was only the fast 12" optics that allowed it with this relatively modest amount of exposure the rather vague blotchiness visible in some areas of the wider field versions is due to the low amount of colour data used to compile the image and again I wasn't too phased by it as it was really other qualities of the image that I was trying to showcase...I think I am a little forgiving of minor cosmetic blemishes in order to reveal that which is seldom or never revealed in other images I will be able to push harder like this with more success once longer exposures are possible (even with a 12" F3.8) I just need to get my observatory setup to facilitate it
Mike
Last edited by strongmanmike; 14-02-2013 at 05:44 PM.
) guys 
, sorry you didn't like it mate, I thought it showed lots of detail 
...there are some lazy buggers on here who will only look at the attachments 
Still, I haven't seen such a close up of the centre of NGC 253 before..have you..? 
