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Barry S Moore | all galleries >> Astronomy > Jupiter with moons
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Jupiter with moons

Jupiter with moons

Sydney at 10:43pm EST (+1DST)

From left to right (according to Stellarium )
Ganymede, Jupiter, Europa, Io, Callisto.
The effective magnification of the camera is 8 ( for a 400mm lens) X 2 X 1.4 X
1.6 (FOV factor) X ~3 (digital crop) = 67 times ( as compared to a 50mm standard lens)
My telescope I used to observe a little later when Io and Europa crossed paths
managed X44 (400mm obj and 9mm eyepiece)and was comparable in size but a lot sharper.

Canon EOS 50D ,Canon EF 100-400mm f/4.5-5.6L IS USM
1/3s f/16.0 at 1120mm iso12800 (IMG_7442crop.jpg)
crop at 1000 X 1000 pixels with Sigma 2X and Kenko 1.4X
teleconvertors, mirror lock and cable release with tripod full exif

other sizes: small medium large
clickA SF19-Jul-2012 04:00
Fantastic! Voted
Simon Chandler30-Mar-2010 02:34
Wow, awesome capture. v