by Herb Bubert
Taken in Hillsboro, NH 3/17 & 3/26/10 with a TV101 and SBIG ST-8300 monochrome ccd camera. H-a, OIII & SII filters. 140min/H-a, 135min/OIII & 60min/SII. Processed using a "true color" method by combining H-a with OII & SII. RGB= H-a*SII, OIII, H-a*OIII with synthetic luminance channel.