Taken with the CDK12.5 and the PW 0.66 reducer from our backyard over 3 nights through semi-cloudy skies.
The AP1100GTO performed admirably, tracking the target unguided through the clouds and allowing data to be captured throughout the night. The subs(exposures) blocked by clouds were then deleted.
The QHY268m with its very low Read Noise and very high quantum efficiency is a perfect candidate for the task.
Imaging telescopes or lenses: Planewave CDK 12.5
Imaging cameras: QHYCCD 268M
Mounts: Astro-Physics AP1100 GTO CP4
Guiding: Unguided APCC
Focal reducers: Planewave Instruments 0.66x Reducer
Software: NINA - Nighttime Imaging ‘N’ Astronomy · PixInsight 1.8.6 Ripley Pixinsight 1.8
Filters: Chroma 3nm Sii · Chroma 3nm OIII · Chroma 3nm H⍺
Dates:Sept. 15, 2021
Chroma 3nm H⍺: 52x300" (4h 20')
Chroma 3nm OIII: 45x300" (3h 45')
Chroma 3nm Sii: 40x300" (3h 20')
Integration: 11h 25'
Pixel scale SHO: 1.020 arcsec/pixel
Field radius: 0.479 degrees
Edited by Rouzbeh, 25 September 2021 - 11:06 PM.