I haven't pushed the saturation very much. This galaxy doesn't need many bells and whistles in its processing. Besides, we need a silvery look to justify its name.
Details:
Telescope: 12.5" Plane Wave CDK
Mount: AP900
Camera: Proline 16803
Exposure: 4h 50m through Astronomik LRGB filter set.
Processing: PixInsight
FOV: 42' x 42' (Slight crop)
......sorry, sorry....I mean, a very nice 253 Geoff
Yes the improvements are rather noticeable huh?.. nice to see.
Mike
Yeah I know. Just another ngc253. Trouble is that I have had rotten luck with the weather at Wiruna, so I decided to do a nice bright object. Good thing I did. I was also imaging 1360 in the second half of the two nights and with the faint object it was pretty apparent that there was a lot to be desired in terms of transparency, particularly in terms of the blue.
Quote:
Originally Posted by RickS
Showing an excellent trajectory, Geoff! When do we get the next one? It'll be mindblowing
Thanks Rick. You probably have more confidence than I do.
Quote:
Originally Posted by Slawomir
Certainly a pleasing result Geoff
I reckon stars look better too in the recent version
Thanks Suavi. Agree about the stars. I used to hate diffraction spikes when I was imaging with a refractor, but I'm starting to like them quite a bit.
Quote:
Originally Posted by gregbradley
Very nice Geoff. You got the blue outer areas showing very well.
Greg.
Thanks Greg. I always like to see some blue in my galaxy shots--assuming that it is there in the first place.
Quote:
Originally Posted by Atmos
Showing a lot of nice detail Geoff, good to see how you're improving over the years
Thanks Colin. It's often a good idea to look back.
That's excellent Geoff. The details of the galactic fountain are very well shown. Lots and lots of background galaxies showing clear structure. And the blue to warm balance is perfect.
Yeah I know. Just another ngc253. Trouble is that I have had rotten luck with the weather at Wiruna, so I decided to do a nice bright object. Good thing I did. I was also imaging 1360 in the second half of the two nights and with the faint object it was pretty apparent that there was a lot to be desired in terms of transparency, particularly in terms of the blue.
He he yeah I was just being my usual comedian self , it's a good 253 mate Always a good fall back if one is desperate to image something...actually...must be about time for me to shoot it again myself, haven't shot it since waaay back in late 2012...maybe a bit late now
How's the 1360 lookin? Those Ha jets are a challenge.
I like this image ....a lot...and am perplexed as to why it didn't get some more deserving commentary.
Ok there is something weird going on in the dark field around the middle to the right edge of the frame, but the you have nailed the colour IMHO. Plus there is delightful fine structure revealed within the galaxy itself.
This is a hard galaxy to do really well....but I think you've done that here.
I like this image ....a lot...and am perplexed as to why it didn't get some more deserving commentary.
Ok there is something weird going on in the dark field around the middle to the right edge of the frame, but the you have nailed the colour IMHO. Plus there is delightful fine structure revealed within the galaxy itself.
This is a hard galaxy to do really well....but I think you've done that here.
Nice one
Thanks Peter. You are the first one to notice this artifact. It was a flare from an out of image star, which I did a less than perfect job of removing. I should have another go at it. That's one problem I have with the Plane Wave. A promising image is often marred by out of field flares.
The interesting thing is that the seeing wasn't all that good--high 2's to low 3's.
Geoff
I like this image ....a lot...and am perplexed as to why it didn't get some more deserving commentary.
... you have nailed the colour IMHO. Plus there is delightful fine structure revealed within the galaxy itself.
This is a hard galaxy to do really well....but I think you've done that here.
Nice one
Agreed!
Quote:
Originally Posted by Geoff45
That's one problem I have with the Plane Wave. A promising image is often marred by out of field flares.
The interesting thing is that the seeing wasn't all that good--high 2's to low 3's.
Geoff
We've been having the same problem, but worse, with our NGC 1532, with about 1/3 of the image wrecked by reflections from upsilon 4 eridani. We recall that Marc Aragnou used to tackle this problem in other scopes using special black velvet flocking on the inside of the tube. Might be worth investigating. Velvet is shiny in one direction, and utterly black in the other.
We've been having the same problem, but worse, with our NGC 1532, with about 1/3 of the image wrecked by reflections from upsilon 4 eridani. We recall that Marc Aragnou used to tackle this problem in other scopes using special black velvet flocking on the inside of the tube. Might be worth investigating. Velvet is shiny in one direction, and utterly black in the other.
I have some of the black velvet I bought from some astro supplier a while back. Sticky on one side. I used it on my refractor with some success. Might give it a go on the PW. I did put in some baffles supplied by PW but they don't seem to have made much difference.
...sorry, sorry....I mean, a very nice 253 Geoff 
, it's a good 253 mate 
