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Subject:
Author: Marc Leduc
Scope: William Optics Megrez 90
Instruments: CGEM, Canon 40D, TRF-2008, SSAG, Orion Mini Guider
Exposure time: (23 X 45 sec) : 17min 15sec with ISO (320, 400, 640, 800 and 1000);
M81 and M82 light travel time 12 million years.
Place & Seeing: St-Methode-de-Frontenac, Quebec, Canada under medium seeing with moon
Date: Septembre 2, 2012
Remarks: Astronomik CLS-CCD filter

 

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