

▲ 0 r/askastronomy
Big weird vertical dark line and dark bottom of stars/planets
Hi everyone,
Newbie here!
I just started
Me and my friend bought the following gear:
Celestron 130slt mount
Qhy5iii715c camera- 8mpx and 1.45 upixel sensor size
Startravel 120 telescope ( 120 aperture and 600mm focal)
As you can see it the photo when zoomed out/out of focus
Some dark vertical line appears
And the bottom of the planet/star is becomes dark
I tried using air to clean my camera sensor and my focuser
And when i zoom in/focus well i get the vertical and horizontal lights!
Is This normal? Something wrong? Or needs cleaning?
Please help i couldn’t find a proper solution/explication
Thanks all in advanced
u/Fooad4444 — 4 days ago