vkastronomy.com - Astrophotography Weblog
M81 Group
18:39 22/9/2006 UTC
< Previous Next >My another image with my own equipment from DS-Meet. This was quite successful except I didn't take care of the nearby mast and its bright red light. M81 Group got close to the mast had ugly red glow in several images. Finally the objective got dewed and I had to end my session and move to visual observations for the rest of the night. Sigma Clipping made the glow disappear almost totally.
NGC/IC Object List:
NGC3034 galaxy RA:09h55m54.0 Dec:+69°40m'59" BMag: 9.2, M 82 Ursa Major A
NGC3031 galaxy RA:09h55m33.5 Dec:+69°04m'02" BMag: 7.8, M 81 Bode's Galaxy
NGC3077 galaxy RA:10h03m20.3 Dec:+68°44m'06" BMag:10.6, UGC 5398
[High Resolution : 1600x1200 490kB]
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: Baader IR/UV block | Guiding: Orion ShortTube 80mm f5 refractor, QCGuider, Teleskop-Service 1.5x Barlow, Phillips ToUCam Pro II webcam | Exposure: 12x240s (48m) ISO800 f6, 4 darks, 15 flats, bias | Software: IRIS, GIMP | Location: 60°44'N 26°12'E (Tähtikallion Observatory/Artjärvi, FI) | Target altitude in the beginning of the exposure 41°
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Added: 14:31 27/9/2006 UTC
![[High Resolution : 1600x1200 490kB]](images/m8182-2006.09.22-18h39m-high.jpg){kind=link}