White outline when derotating in WinJupos

[Jammy]

Hi all 

I've just tried derotating my Mars images from the 14th Sep.

I took 16 x 2 min exposures, which I've aligned and derotated in WinJupos after stacking.

Does anybody know why I'm getting the white outline?  Have I missed a setting in the software?

I've tried with another data set previously and had the same results for Jupiter.

I'm not sure what I'm doing wrong.

I'd greatly appreciate some help.

Thanks

Jamie

 

Edited September 19, 2020 by Jammy

[CraigT82]

It can help of you reduce the LD value in the right hand column of the table where you load up the images ro derotate. I usually go for around 0.8. I dont know why it appears, I think it might be when the alignment frame wasn't too accurate but can be very hard to get it right. 

[Jammy]

Thank you.  I've just tried and got a better result.

It's not as sharp, but I'll give wavelets another go on the result.

Thanks for your help