C/2011 L4 (PanSTARRS)
Comet
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C/2011 L4 (PanSTARRS), also known as Comet PANSTARRS, is a non-periodic comet discovered in June 2011 that became visible to the naked eye when it was near perihelion in March 2013. It was discovered using the Pan-STARRS telescope located near the... Wikipedia
Orbital period: Millions of years (inbound); ~107,000 yr; (outbound solution for epoch 2050)
Predicted next perihelion: March 2013
Discovered: June 6, 2011
Radius: 1,640.4′
Last perihelion: March 10, 2013
Discovered by: Pan-STARRS
Max. orbital speed: 76.7 km/s (172,000 mph)