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Photographer:

Robert Vanderbei

Email:

rvdb@Princeton.EDU

Location of Photo:

Belle Mead, NJ

Date/Time of photo:

3:48pm EDT Mar 21, 2009

Equipment:

3.5" Questar and Starlight Express SXV-H9

Description:

This is a stack of the best 13 out of fifty 0.007 second exposures of Venus through a narrowband H-alpha filter. The stacked image has been resampled to be 2x bigger and the grayscale has been inverted so black is white and white is black. With a little imagination, it appears that the arc extends well beyond the normal 180 degrees one would expect to see. The extension is the glow caused by Venus' atmosphere.

Website:

http://www.princeton.edu/~rvdb/images/Questar/venus.html

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