本帖最后由 steveyzh 于 2014-8-17 18:10 编辑  
 
VDB 141"幽灵星云"14小时曝光@若岩天文台 
远程拍摄3天 
这是第5次处理的版本。。。。。。  
 
 
 
VDB 141 ghost nebula 
@Ruoyan Observatory,Xinjiang,CHN 
 
telescopes: Takahashi TOA-150 
cameras: QHYCCD QHY 11 
Mounts: Paramount MX 
Filters: Baader LRGB  2" 
Accessories: SBIG STI 
 
Dates: May 31, 2014 
Locations: Ruoyan Observatory 
Frames: 42x1200" 
Integration: 14.0 hours 
Avg. Moon age: 2.11 days 
Avg. Moon phase: 4.94% 
RA center: 319.133 degrees 
DEC center: 68.050 degrees 
Pixel scale: 2.422 arcsec/pixel 
Orientation: 18.271 degrees 
Field radius: 0.806 degrees 
 
 
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