January 27, 2008

Illusive Mercury at Elongation Over Spain


Perhaps the least observed planet is Mercury by virtue of the fact it never strays very much away from the Sun, thus making this planet a difficult object to observe. TWAN member Juan Carlos Casado's photo of fleeting Mercury during March/2000 is showcased today as NASA's AstroPhoto of the Day (click here). This difficult imaging project depicts the apparent motion of Mercury across the western horizon with the sun ten degrees below the horizon.

Congratulations for such a fine image of a difficult object!

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