NG6960 - Western Veil (Ha:OIII:OIII)

20:41 11/8/2007 UTC

I had a hard time with clouds while taking OIII exposures for my Veil project. Clouds came and went and gave me a little bit over an hour of clear sky. Anyway, I got a reasonable OIII signal and here's the progress so far combined to the H-alpha image taken the night before. Next in line is SII exposure. I implemented a simple manual dithering to my autoguider to help with the pattern noise. Seems to work for me!

NGC/IC Object List:
NGC6960 supernova remnant RA:20h45m42.0 Dec:+30°43m'00" BMag: 7.0, LBN 191 Veil Nebula
NGC6979 gaseous nebula RA:20h51m00.0 Dec:+32°09m'00" BMag: ,

Camera: Modified Canon EOS 350D | Telescope: Skywatcher ED80 Pro 80mm f7.5 refractor, William Optics 0.8x focal reducer | Mount: Orion Skyview Pro, Boxdoerfer PowerFlex MTS-3SLP drive controller | Filters: Astronomik H-alpha 13nm 2", Astronomik OIII 13nm 2" | Guiding: Orion ShortTube 80mm f5 refractor, QCGuider, Teleskop-Service 1.5x Barlow, Phillips ToUCam Pro II webcam | Exposure: Ha: 24x300s (2h) ISO800 f6, 6 darks, 9 flats; OIII: 15x300s (1h15m) ISO800 f6, 7 darks, 11 flats. Ha:OIII:OIII Mapping | Software: IRIS, GIMP | Location: 60°31'N 26°52'E (Koivula/Kotka,FI) | Image Field: 2.293 x 1.721 degrees | Image Center: Ra 20h47m24s Dec +30°58'55" | Target altitude in the beginning of the exposure 58°