| Mars will reach opposition 2010 on december 29th, the closest approach
to earth will be 99.4 millon km. Therefore the apparent
diameter of mars will be relatively small compared to the century opposition
2003: Only 14.1".
The 2009/2010 opposition will favour the northern hemisphere of earth
where Mars can be observed high in the winter constellations. At my
oberving location it will reach culmination heights >60° being a
nice compensation for the very small apparent diameter of mars.
Click images for details:
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