description:: Irregular Galaxy M82 in Ursa Major location:: Mt. Laguna, CA for L channel and Pine Mt., CA For RGB channels equipment:: ST-8E, AO-7 using an RC Optical Systems 12.5" F/9 Ritchey-Chretien exposure:: L:12x10mins unbinned, R:2x10mins 2x2, G:2x10mins 2x2, B:2x16mins 2x2