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・ Minority Report (2002 collection)
・ Minority Report (film)
・ Minority report (Poor Law)
・ Minority Report (TV series)
・ Minority rights
・ Minority Rights Group International
・ Minority Rules
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・ Minority Treaties
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・ Minor places in Arda
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・ Minor planet
・ Minor Planet Bulletin
Minor Planet Center
・ Minor Planet Circular
・ Minor planet designation
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・ Minor premiership
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・ Minor Scale
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Minor Planet Center : ウィキペディア英語版
Minor Planet Center

The Minor Planet Center (MPC) is the official worldwide organization in charge of collecting observational data for minor planets (asteroids) and comets, calculating their orbits and publishing this information via the Minor Planet Circulars. Under the auspices of the International Astronomical Union, it operates at the Smithsonian Astrophysical Observatory, which is part of the Center for Astrophysics along with the Harvard College Observatory.
The MPC runs a number of free online services for observers to assist them in observing minor planets and comets. The complete catalogue of minor planet orbits (sometimes referred to as the "Minor Planet Catalogue") may also be freely downloaded. In addition to astrometric data, the MPC collects light curve photometry of minor planets. A key function of the MPC is helping observers coordinate follow up observations of possible Near Earth Objects (NEOs) via the (NEO Confirmation Page ) and (NEOCP Blog ). The MPC is also responsible for identifying, and alerting to, new NEOs with a risk of impacting Earth in the few weeks following their discovery.
== History ==

The Minor Planet Center was set up at the University of Cincinnati in 1947, under the direction of Paul Herget.〔〔 Upon Herget's retirement on June 30, 1978,〔 the MPC was moved to the SAO, under the direction of Brian G. Marsden.〔 From 2006 - 2015,〔 the director of the MPC was Timothy B. Spahr,〔 who oversaw a staff of five.
, the Minor Planet Center is headed by interim director Matthew Holman.〔.

抄文引用元・出典: フリー百科事典『 ウィキペディア(Wikipedia)
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