NGC6357 Nebula in Emission-Line
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NGC6357 |
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Object |
Type |
Emission Nebula |
Constellation |
Scorpius |
Distance |
3,300 ly |
More
Info |
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Image |
Date |
22 May 2009 (Spring) |
Place |
Mount Laguna, CA |
Exposure
Data |
SII:Ha:OIII 60:120:60 mins @ -20C
SII 4x15, Ha 8x15, OIII 4x15 (bin 1x1) as RGB |
Notes |
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Equipment |
Optics |
Takahashi FSQ-106N Refractor |
Focal
Length |
530mm @f/5 |
Mount |
Astro-Physics 900GTO |
Camera |
SBIG ST-2000XM |
Focuser |
Robo-Focus |
Filters |
CFW10A, Astrodon 6nm SII, Ha, OIII |
Software |
CCD Commander, Maxim DL, CCDStack, Photoshop |
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