Hoi Koot,
vragen 1 en 3: geen idee, maar er zijn vast anderen hier die je kunnen helpen.
vraag 2: C. Woodhouse, The Astrophotography Manual: A practical and scientific approach to deep sky imaging, (New York, Abingdon, 2017).
Nicolàs
https://www.dehilster.info/astronomy
In the observatory: Mount: 10Micron GM3000HPS, OTAs mounted: SW Esprit 80ED & Esprit 150ED, Celestron C11 XLT EdgeHD, Lunt LS80THA single stack, GTT60 (60mm aperture Galilean Type Telescope), Cameras: ZWO ASI1600MM Cool (2x), ASI174MM, ASI290MM & MC, QHYCCD QHY163M, OTAs on the ground: SW Explorer 300PDS, Bresser Messier 130/650 & 90/500.