Clear all

31 July 2020 - Comet Registration video tutorial using APP 1.083-beta1 released.

30 July 2020 - APP 1.083-beta1 has been released introducing Comet processing! This 1st beta has comet registration. The stable release will also include special comet integration modes.

9 July 2020 - New and updated video tutorial using APP 1.081: Complete LRGB Tutorial of NGC292, The Small Magellanic Cloud by Christian Sasse ( and Mabula Haverkamp

2019 September: Astro Pixel Processor and celebrate a new Partnership!

Horizontal Lines  


Hydrogen Atom Customer
Joined: 1 year ago
Posts: 1
September 20, 2020 01:25  

Recently I've been getting Horizontal lines in my processed image?  I can't figure out where they are coming from or what is causing them. I'm hoping someone here has a suggestion. I have attached 2 screen shots showing the lines right after integration.  I'm wondering if there is something I missed, not check or or unchecked.   Images are taken with ASI 2600MC camera & Esprit 120ED APO scope. They consists of both 120s and 300s exposures at Gain 0,  Both session and flats were taken in the same evening. I have ruled out the filter as being the cause.  I have looked at individual fits files and don't see the lines in them either.  If you have any idea i'd like to here it.

Quasar Admin
Joined: 3 years ago
Posts: 2453
September 20, 2020 11:52  

I think the adding of the images didn't work. 😉