Bill Maxwell

Thanks all.

Advice all taken on board.

I have re stacked original lights in Deep Sky Stacker and the Tiff looked completely different. I have had another go at processing and I think this looks better (with a crop) and has resolved stars in the core!

Malcolm,

The JPEG is produced from the TIFF file that Sequator produced. The light trails were on only one of the light frames and I did expect that the stacking would have eliminated  them.

Sounds like I should be using shorter exposures with my setup? And more care with focussing?

Bill

AMcD,

Thanks for your comments.

Image taken with Sony a58 through Starwatcher Startravel 120. Exposure was 30 seconds at ISO1200 and there were about 20 images. Scope mounted on AZI GTI.

Completely new to processing but stacked with Sequator and processed with GIMP based on a few You Tubes I had viewed.

Will look online as suggested for back focus information.

JPEG uploaded as requested.

Bill

These stars dont look right - are they out of focus or is it something else?

Orion nebula taken last night.

Grateful for any advice!

Bill

Orion Nebula.tif