Great Nebula in Orion M42
Composite Image
80% H-alpha, 20% Lumicon DSF
6.4 hours total exposure time
SXV-H9,2.75 arc-sec/pixel Stellarvue Nighthawk at f/6 piggybacked on STV-guided LX200 at 1,575 mm. Astronomik 13 nm H-alpha filter and Lumicon DSF: Trapezium 10 x 60 seconds, unbinned 1x1; entire M42 15 x 900 seconds, unbinned 1x1. M42 with Lumicon DSF: 10 x 20 seconds for trapezium, 16 x 600 seconds entire M42, unbinned 1x1. Acquired with Astroart 3.0, aligned with AIP4WIN ver 1, sigma combined in Ray Gralak's pre-beta 11. Trapezium feathered into entire image using Corel Photo-paint 8.0.
full exif