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Crab Nebula
Supernova remnant in Taurus
Magnitude 8.4, 6,500 lightyears away
WO Megrez 90 with f 6.3 reducer,Meade DSI PRO 2 guided DSIC 10" LX200 GPS
Taken on 10/21/06 In Gallup, New Mexico
Ha(green): 15 x 2mins, SII(red): 11 x 2mins, OIII(blue): 11 x 2mins
Standard calibration: Flat field and dark subtraction, image stacking and alignment
with AIP4WIN
Image processing with PS CS2