vkastronomy.com - Astrophotography Weblog
Horsehead and the Flame (Ha:OIII:OIII)
17:39 16/1/2007 UTC
< Previous Next >Horsehead is visible from my backyard about 2h, which doesn't give much time to do very long exposured. This wasn't quite a succesful photo, since I had lost the routine in imaging during long cloudy period. New equipment seems to have generated some very nasty bright reflections in the image. I suspect they come from clear aluminium adaptor ring which connects the reducer to the Filter Drawer System. Reflections spoiled large parts from the image, so I had to crop and save small part from the center. OIII didn't give much more than whiteish stars.
NGC/IC Object List:
NGC2024 gaseous nebula RA:05h41m42.5 Dec:-01°50m'43" BMag: , CED 55P
IC434 gaseous nebula RA:05h41m00.0 Dec:-02°26m'40" BMag:11.0, LBN 954 Horsehead Nebula
[High Resolution : 800x600 90kB]
Camera: Modified Canon EOS 350D (Rebel XT) | 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: 9x300s (45m) ISO800 f6 (Ha), 10x300s (50m) ISO800 f6 (OIII), 12 darks, 10 flats, bias. Ha:OIII:OIII Mapping | Software: IRIS, GIMP | Location: 60°31'N 26°52'E (Koivula/Kotka,FI) | Target altitude in the beginning of the exposure 22°
Average Rating 4.33 (3 total votes)
Added: 15:51 17/1/2007 UTC
![[High Resolution : 800x600 90kB]](images/horsehead-2007.01.16-17h39m-high.jpg){kind=link}