It will appear in the West at sunset, from around the 8th to the 13th of March 2013, and will be visible to the naked eye up to the end of the month. Comet Pan-Starrs C/2011 L4 will traverse Cetus, Pisces, Pegasus and Andromeda. The scientists of the Paris Observatory are calculating its path. They have been following it since September 2012, using the large Nançay radiotelescope (in the Cher region of France), the Herschel infra-red space observatory, at the Pic-du-Midi Observatory (in the Pyrenees), and with the antennas at Bure (in the Alps), at Pico Veleta (Spain), and at Chajnantor (Chile).
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