M 42 Date: Exposure: FWHM: Additional Notes: September 2011 1.9 hours LRGB (70:15:15:15 min.) 2.8 arcsec Telescope: Mount: Camera: Filters: 10” f/8 Ritchey-Chrétien Gemini G53F ALccd9 Astronomik Typ II.c LRGB The content of the entire website is subject to German copyright law. Copyright 2012 Astro-Kooperation All rights reserved. [click photo to enlarge]