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Bubble Nebula in Emission-Line
Type Planetary Nebula
Constellation Cassiopeia
Distance 11,000 ly
More Info
Date 06 Dec 2005 (Fall)
Place Carlsbad, CA
Exposure Data SII:Ha:OIII 60:250:60 mins @ -20C
SII 4x15 (bin 2x2), Ha 25x10 (bin 1x1), OIII 4x15 (bin 2x2) as RGB
Notes The Ha data was collected by the C11 on 10/29/04. The SII and OIII were collected by the FSQ-106 on 12/06/05
Ha also used as the Luminance layer
Optics Celestron C11 / Takahashi FSQ-106N
Focal Length 1764mm @f/6.3
Mount Celestron CGE
Camera SBIG ST-2000XM
Focuser Optec TCF-S / Robo-Focus
Filters Astronomik 13nm Ha, Astrodon 6nm SII, OIII
Software CCDSoft 5, Maxim DL 4, Photoshop cs

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