Planetary nebula NGC 7293 (Helix) - 19 August 2010

Technical information:
Optics:Newton 36cm + Paracorr + Baader UHC-S filter
Focal:1725mm (1500mm*1,15 due to comacorrector)
Exposure:20x8 min
Date and time:18 August 2010 from 23:05 UTC
Location:Central Europe, Slovakia, Cadca, village Zakopcie
Atmosphere:clear sky
Pointation:own autopointer + webcam Logitech Pro 4000
Software:ImagesPlus + Photoshop
Camera:modified Canon 350D
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