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Rosette Nebula in Emission-Line
NGC2237
Object
Type Diffuse Nebula
Constellation Monoceros
Distance 5,500 ly
More Info
Image
Date 26-Dec-2011 (Winter)
Place Carlsbad, CA
Exposure Data SII:Ha:OIII 120:150:120 mins @ -20C
SII 8x15, Ha 10x15, OIII 8x15 (bin 1x1) as RGB
Notes Ha also used as the Luminance layer
Equipment
Optics Takahashi FSQ-106N Refractor
Focal Length 530mm @f/5
Mount Losmandy G11
Camera SBIG ST-10XME
Focuser Robo-Focus
Filters CFW10A, Astrodon 6nm SII, 3nm Ha, 6nm OIII
Software MaxIm DL, CCDStack, Photoshop

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