Hi all, need some help trying to fix elongated stars. I have a link to an untouched light frame as well as PHD's Guiding Assistant results from 2 nights ago on google drive.
I was shooting at F10 and decided, due to NJ bortle 5 skies, to go to F7. I am guiding through an OAG with an additional .5 focal reducer to increase the FOV. The only way I try to determine if I have a good frame, is if the Pixinsight Eccentricity measure is less than .6. Only about 50%-60% of my frames are less than .6 Eccentricity so I think I can do better.
Any help would be appreciated.
Here's my setup:
Celestron Edge HD 11"
CGX-L Mount - Pier mount with Dan's Pier Plate
Imaging camera- ZWO ASI2600MC Pro. (Focal length 2,800 x .7 = 1,960mm)
Guiding: OAG - Zwo OAG with .5 Focal Reducer (Focal length of OAG 2,800 x .7 x .5 = 980mm)
Guiding camera: Zwo ASI294MC Pro
Filter drawer - ZWO
Filter Optolong L-ENHANCE FILTER - 2"
Sequence Generator Pro
Untouched light frame 300seconds with L-eNhance filter
PHD Guiding Assistant results: