Deepsky - Pieter Vandevelde

Sh2-284 (Open clusters Dolidze 23 & 25) in Monoceros

Scope: 10" f/3.8 Newtonian
Mount: Mesu 200 Sitech
Guiding: Lodestar + custom oag
CCD: sbig st8300 @ -25°C (final image made with this CCD camera)
Filter: Astrodon 5nm h-alpha
Exposure: 14 hrs total (20 min subexposures binned 1x1)
2 panel mosaic

Resolution: 1.16 arcsec/pixel

Imaged January & February 2017 (5 sessions).