[Shiraz (Ray)]

Originally Posted by Atmos

That's turned out really nice Ray! What was your gain setting for this?

Thanks Colin. I use 100 for everything to date - seems to be useful for most purposes.

Originally Posted by Paul Haese

4 second singles - interesting result and it has quite nice detail.

thanks Paul - just a start and an attempt to see what could be done in this intermediate timescale region.

Originally Posted by multiweb

Great colors and details for such a tiny object. Well done.

thanks Marc!

Originally Posted by troypiggo

Interesting. I would have expected "lucky imaging" to be even shorter subs, as in poor seeing even 4s subs would show some wobble.

You mention the 1min subs had 3arcsec FWHM, but compared that to the stacked 4s subs' < 2arcsec FWHM. Curious about a comparison of straight up sub vs sub, or stack vs stack - would assume that 1min subs stacked would give better FWHM than individual 1min subs as well?

Hi Troy. yes, maybe it should be called "mildly fortuitous" imaging or some such to distinguish from the planetary approach. Nonetheless, the results show that the same methods are applicable at these times.
I hadn't intended a direct comparison - just wanted to point out that conditions were marginal for normal imaging, but still produced quite good results with high speed imaging (actually I had decided that conditions were so bad that I would pack it in - only switched over to this target on a whim). I didn't take enough 1 minute images to be able to stack them - there wasn't any point.

Originally Posted by gregbradley

Another good image Ray.

Short exposures definitely are showing their advantages. I think stars also look better in short exposures.

Greg.

thanks Greg. The stars probably look different because they are all dimmer than the nebula - no chance of saturating.

Originally Posted by RickS

Looks good, Ray. Will have to compare with my "conventional" version when I get home.

Cheers,
Rick.

Be very interested to see Rick - I was thrilled to get anything at all on this beautiful object, but am sure that better results are possible with a bigger aperture and better seeing.

Originally Posted by strongmanmike

Excellent details visible for such a small target Razzor Was this at the native prime focus of the 10" F4?

Mike

Thanks Mike - it turned out better than I had hoped. This was at normal focus of the 10 inch f4. I tried super-res processing, but could not improve on the result from simple scaling. No dither used - at 4 seconds, it slows things down too much. Need a way to dither every 10 subs maybe rather than every one.

Originally Posted by Placidus

Superb, Ray. Adventurous and successful.

Very generous M&T. It was pleasing to get an image of this object under the conditions, but now I might have to look at getting a bigger scope

Regards Ray