Rosette Nebula (NGC 2237) using 3nm narrowband filters from a bright sky location

Peter Nerbun
Location of photo
Perry Hall, Maryland USA
Date/Time of photo
Jan 29 2015 at 05:36 UT
TMB-92L refractor, Atik 460EX Monochrome CCD camera, Losmandy Gemini G-11 equatorial mount, Orion Mini 50mm Guide Scope, ASI 120MC guide camera, 3nm H-a and 3nm O-III narrowband filters, Aurora Flatfield Panel, Orion Nautilus motorized filter wheell
This image shows the Rosette Nebula (NGC 2237) using a 92mm refractor and a thermoelectrically cooled ATIK 460EX monochrome camera coupled to a filter wheel containing 3nm H-a and 3nm O-III narrowband filters. I captured this image from my bright sky observing site over a period of 100 minutes. I used the H-a data as Luminance and as a red layer; also I used the O-III data as a green layer and as a blue layer to create this LRGB image.