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255P/Levy, formerly P/2006 T1 and P/2011 Y1, is a periodic comet with an orbital period of 5.25 years. It last came to perihelion on 14 January 2012. During the 2006 passage the comet achieved an apparent magnitude of ~9.5. Levy (PK06T010) was believed to have been recovered on 3 June 2011 at magnitude 19.8, but other observatories were unable to confirm a recovery. It was most likely a false positive because of large residuals. Levy was recovered on 17 December 2011 at magnitude 19.8, and given the second designation 2011 Y1. It was then numbered.
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Eric James Christensen is an American astronomer and a discoverer of comets. He works as a staff scientist with Catalina Sky Survey and is responsible for the survey's near-Earth object operation.
References
- ↑ Syuichi Nakano (2012-02-06). "164P/Christensen (NK 2193)". OAA Computing and Minor Planet Sections. Retrieved 2012-02-20.
- ↑ MPC
