Quote:
Originally Posted by gregbradley
Awesome work Paul. An amazing effort - 43 hours on a widefield. That's very exciting. Also its proof that excellent optics in a small package can still deliver the goods. I love small refractors myself.
I am joining this thread late on and I can see you've already implemented a few changes so the latest image to my eyes looks sensational.
One thing about gradients. When I am at my dark site which is also totally dark and good seeing I sometimes still get a minor gradient. This used to puzzle me until I started doing some DSLR nightscapes and I saw how often there is sky glow. Sky Glow is usually green but as the latest image from Antu in the nightscapes beautifully shows it can sometimes be shades of red/magenta. So perhaps you caught a bit of that and also as you are fairly south perhaps even some Aurora one night. I am not sure high cloud would create a reddish area like that. If there had been high cloud the stars would have been fuzzy which is the first thing you would notice.
Of interest to me is the elliptical galaxy in the bottom right. Is it just me or is there a hint of a tidal stream there going down to the bottom right corner? I'd love to see a nice inverted image to see that more clearly.
You are obviously doing the most you can to do the best of imaging and the hard work is showing in results here.
Greg.
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Yeah the gradient is a puzzle given I shoot mostly in the east and there is no light source for 700 or so kilometres.
As requested here is a link to an inverted image. Hope that suits. I don't think there is a stream though.
For the size this refractor does all right but the seeing at Clayton makes the refractor really perform. Guide parameters in the last month of so have been around 0.1 at worst and 0.01 at best.
Click here for image (its full res too)