Orion Diffuse Nebula M42(NGC1976) [Around Trapezium]

 Date and Time    : 1999.10.23 05:04
 Optical Equipment: CELESTRON D9inch/f2,350mm/F10 Shumit Cassegrain 
                    + VIXEN GP equatrial with SKY SENSOR2000PC
 Camera           : Cooled CCD (SBIG ST-7) -5.23deg.C 
 Filters          : SBIG IR coated filters R, G, B
                    SBIG Automatic Filter Wheel CFW-8A 
 Exposure Time    : R:20sec.X5, G:20sec.X5, B:20sec.X5 
                    (All are Automatic Add Composit)
 Pinning          : R:1X1, G:1X1, B:1X1
 Graphic Process  : Processed with "CCD Master", "Stella Image 2" 
                    and "Photo Shop"


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