M 101

Cheman · Post by **Cheman** » Mon May 18, 2015 2:06 am

At last a break in the clouds.

comments welcome
Che

admin · Post by **admin** » Mon May 18, 2015 7:43 am

Detail is tack sharp, colors spot on. Very nice!
I can spot some faint satellite trails though (not a biggie IMHO). What sort of stacking method did you use?

Cheman · Post by **Cheman** » Mon May 18, 2015 1:31 pm

Hi Ivo
Thanks for the comment.
I used Auto Adaptive Weighted Average in DSS. It doesnt seem to completely get rid of the sat trails, but the remaining ones are pretty faint. What method would you suggest
Che

admin · Post by **admin** » Mon May 18, 2015 11:08 pm

Cheman wrote:Hi Ivo
Thanks for the comment.
I used Auto Adaptive Weighted Average in DSS. It doesnt seem to completely get rid of the sat trails, but the remaining ones are pretty faint. What method would you suggest
Che

Yeah, not a huge problem at all. Kappa-Sigma clipping tends to be pretty good at getting rid of outliers like satellite trails. Have you ever used it in the past? That said, Auto Adaptive Weighted Average should've done a decent job as well. It's one of those YMMV things...

Cheman · Post by **Cheman** » Mon May 18, 2015 11:12 pm

I've probably tried most of the options at one time or another

Next time I have some visible trails I'll try the Kappa-sig.

akeru · Post by **akeru** » Sat May 23, 2015 6:59 pm

Nice image Cheman. Congrats!

Cheman · Post by **Cheman** » Sun May 24, 2015 2:16 am

thanks Roberto
I like your M51, Nice job on it
Che

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