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Calling all amateur astronomers to be a part of the Rosetta Worldwide Ground-based Observing Program to observe comet 67P/Churyumov-Gerasimenko (C-G) from April – December 2015, as the Rosetta orbiter accompanies the comet to its perihelion and outbound journey.

Amateur astronomers will be able to make significant contributions to the campaign, especially in 2015 , from recovery of the comet (which is currently in solar conjunction), around perihelion in August; and post-perihelion when the comet becomes its brightest (September РNovember).  Amateurs can contribute in many formats, ranging from imaging, spectroscopic and binocular observations to sketches.

More information at: http://rosetta.jpl.nasa.gov/rosetta-ground-based-campaign