NGC6357 Nebula in Emission-Line
|
NGC6357 |
|
 |
Object |
| Type |
Emission Nebula |
| Constellation |
Scorpius |
| Distance |
3,300 ly |
| More
Info |
|
|
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 |
|
|
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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