Collimation error or reflections

[aGreyarea]

Hi all,

Processing some pics of last nights double shadow transit on Jupiter and noticed these strange shapes forming. Interesting is the area around the moon to the right brightening, while the area around the moon to the left is darkening while Jupiter itself sits in a parallel, diagonal dark channel.

Is this caused by reflections in the tube and through the Barlow and CMOS or is it a recording of poor collimation.

The image train is a 6"f4 newt, baader 2.25x barlow, QHY5Lii. I noticed the effect in normal wavelets processing in Registax but have pushed them all all the way to make it easier to see.

Thanks in advance

[Steve Ward]

The fact that there are three distinct zones would lead me to believe that you had three align-points for stacking , one on each Moon and at least one , but probably more , on the disc itself.

Registax has done the rest.

[aGreyarea]

Hi Steve,

Okay thanks. Clearly registax does this a lot? I had never seen it before.

Thanks again