Thor's Helmet (25hrs)

HOO composite.

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IMAGING DATA
Optical train: AP167FLZ + AP flattener
Mount: AP1100 CP4
Guiding: unguided
Camera: Apogee U8300 (-30°C)
Filters: Astrodon 2nd Gen 3nm H-alpha & OIII.
Frames: 38x1200-sec H-alpha, 37x1200-sec OIII, binned 1x1
Processing: PI 1.8
Date: 2019-01-04, 2020-02-18, 19, 20, 21 and 22.
Place: General Pacheco, Buenos Aires, Argentina
Seeing & transparency: variable (suburban skies)

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  • Victor Beer, MD on 2022-Feb-15 08:49:47 Victor Beer, MD said

    Good morning Ignacio.
    We all like an occasional kudo.
    Your Apod of Thor’s Helmet is beautiful.
    As a full time physician and part time budding astronomer I am always quite impressed and will enjoy your work.
    I am using a takahashi fsq106 and an askar 400 .
    Asiair pro
    Zwo asi2600 MC .
    Pixinsight (newbie) and experienced photoshop user and landscape photographer:
    www.vicbeer.com
    Don’t quite have the time for mono work but retiring in one year so I will venture into mono.
    question: Stuck on the exposure times. I get a lot of conflicting info on the exposure. Thor's helmet is a small deep space and is that your reasoning for using the long exposure?
    Might have to venture out your way sometime.
    Regards,
    Victor