Deepsky - Pieter Vandevelde

Sh2-261 Lower's Nebula in Orion

Scope: 10" f/3.8 Newtonian
Mount: Mesu 200 Sitech
Guiding: Lodestar + custom oag
CMOS: ASI1600MM-Cool @ -20°C
Filter: Astrodon 5nm h-alpha
Exposure: 9.5 hrs total (5 min subexposures binned 1x1); Unity Gain setting
Resolution: 0.82 arcsec/pixel
Capture and calibration: SequenceGeneratorPro, AstroPixelProcessor

Imaged: February 2018 (4 sub-zero temperature sessions)