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Old 21-08-2010, 02:24 PM
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Robh (Rob)
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Join Date: Feb 2009
Location: Blue Mountains, Australia
Posts: 1,338
There is some truth to this. The glare off bright objects like Venus is less apparent at twilight than in a dark sky. Glare would also be reduced for objects that are lower in the sky due to the increasing relative thickness of the atmosphere. However, seeing conditions are worse nearer the horizon.
The alpha Centauri bright pair are separated by about 9 arcseconds so there should not be any problem separating the two at any time.

Regards, Rob.
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