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Samir Kharusi | all galleries >> Galleries >> How M31 photographs at a Dark Location > M31 from Ghubra Bowl
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16 Dec 2004 Samir Kharusi

M31 from Ghubra Bowl

Ghubra Bowl, Oman

Here is the final product. The Great Galaxy in Andromeda. Light from it started off more than 2 million years ago to reach us today. It's supposedly the furthest object visible by naked eye, at a dark site, of course. I have encountered an awful lot of problems over a long period of time in being able to autoguide in the field, away from mains power, but finally this is my first success! Dark site and autoguiding, makes for a very pleasant combination. Between a crescent Moon and clouds moving around I managed to grab 20 good frames each exposed for 5 minutes in a Canon 1Ds set at ISO 1250 using a Canon EF 600mm/4.0L IS lens, wide open at f4. I was hoping for a lot more, but 20 usable frames was the final tally, squeezed between the Moon and clouds. I had to discard 3 or 4 frames for faulty tracking, a plane passing through, etc. NB: shot with an unmodded Canon 1Ds, the original version of the 1Ds.

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Guest 19-Jan-2007 15:58
Guest 22-Jun-2005 13:44
Fantastic picture
Charles Lasnier26-May-2005 06:45
Great image and processing Samir.