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© © David Aylsworth ~ WPF Observatory ~ Earth



The Butterfly Nebula / Sadr Region, Sh 2-108

Telescope Equipment:
Mount – Celestron CGEM DX
Scope – Canon 70-200mm EF @ 135mm, f/4
Guider- Orion StarShoot Autoguider
Imaging System:
ZWO ASI533MC Pro – Gain 100, Offset 70, Temp 0°C
Filter – Optolong L-eXtreme
Image Details:
Light: 52x300s
Dark: 25x300s
Flat: 25x19.125s (25,000 ADU ±5%)
Dark-Flat: 25x19.125s
Image Capture – Astro Photography Tools (APT) – PhD2
Pre-Processing, Stacking, Stretching – Siril 1.0.3
Starnett ++ v2 – to separate nebula from stars
Post Processing – Adobe Photoshop CC, Astronomy Tools Action Set for Photoshop
Image Taken:
July 18-19, 2022
Photographed from the When Pigs Fly Observatory


© © David Aylsworth ~ WPF Observatory ~ Earth

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