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Subject: M 1, Crab nebula
Author: Mario Bautista
Scope: WO Megrez 90 APO
Instruments: DSI Pro 2 camera, Guided 10"LX200 GPS
Exposure time: Ha:15 x 2 min(green), SII_ 10 x 2 min (red), OIII 11 x 2 (Blue)
Place & Seeing: Gallup, NM, Seeing is good
Date: Oct 21, 2006
Remarks: Narrowband imaging, calibrated with AIP4WIN and processed with Photoshop CS2
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