Object
Description:The Butterfly Nebula in Emission-Line
Type:Nebula
Constellation:Cygnus
Distance:5,000 ly
Image
Date:July 14, 2006
Location:Carlsbad, CA
Exposure:Ha 8x15 (bin 1x1), OIII 4x5 (bin 2x2), OIII 4x5 (bin 2x2) as RGB
Notes:Ha also used as the Luminance layer
Equipment
Optics:Takahashi FSQ-106N Refractor
Focal Length:530mm @f/5
Mount:Celestron CGE
Camera:SBIG ST-2000XM
Focuser:Robo-Focus
Filters:CFW10A, Astrodon 6nm Ha, OIII
Software:MaxIm DL 4, Photoshop cs
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