Matches in DBpedia 2016-04 for { <http://dbpedia.org/resource/James_W._Christy> ?p ?o }
- James_W._Christy abstract "James Walter \"Jim\" Christy (born September 15, 1938) is an American astronomer.Christy was born in 1938 in Milwaukee, Wisconsin. He attended the University of Arizona and earned a Bachelor of Science degree in astronomy from there in 1965. On June 22, 1978 while working at the United States Naval Observatory, he discovered that Pluto had a moon, which he named Charon shortly afterwards. The name remained unofficial until its adoption by the IAU in 1986.The discovery was made by carefully examining an enlargement of a photographic plate of Pluto and noticing it had a very slight bulge on one side. This plate and others had been marked \"poor\" because the elongated image of Pluto was thought to be a defect resulting from improper alignment. The 1965 plates included a note \"Pluto image elongated\", but observatory astronomers, including Christy, assumed that the plates were defective until 1978.However, Christy noticed that only Pluto was elongated—the background stars were not. Christy's earlier work at the Naval Observatory had included photographing double stars, so it occurred to him that this bulge might be a companion of Pluto. After examining images from observatory archives dating back to 1965, he concluded that the bulge was indeed a moon.The photographic evidence was considered convincing but not conclusive (it remained possible that the bulge was due to Pluto having an unexpectedly irregular shape). However, based on Charon's calculated orbit, a series of mutual eclipses of Pluto and Charon was predicted and observed, confirming the discovery.In more modern telescopes, such as the Hubble or ground-based telescopes using adaptive optics, separate images of Pluto and Charon can be resolved, and the New Horizons probe took images showing some of Charon's surface features.In late 2008, the asteroid 129564 Christy was named in his honor.† As of 2015, he resides in Flagstaff, Arizona. He has been married to Charlene Mary since 1975 and has four children. On July 14, 2015, Christy and the children of Clyde Tombaugh were guests at the Johns Hopkins Applied Physics Laboratory when the New Horizons spacecraft successfully performed the first flyby of the Pluto-Charon system.".
- James_W._Christy almaMater University_of_Arizona.
- James_W._Christy birthDate "1938-09-15".
- James_W._Christy birthPlace Milwaukee.
- James_W._Christy birthPlace United_States.
- James_W._Christy field Astrometry.
- James_W._Christy thumbnail James_Christy_&_Robert_Harrington_in_1978.jpg?width=300.
- James_W._Christy wikiPageExternalLink display.cfm?News_ID=5396.
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- James_W._Christy wikiPageRevisionID "703216962".
- James_W._Christy wikiPageWikiLink Adaptive_optics.
- James_W._Christy wikiPageWikiLink Applied_Physics_Laboratory.
- James_W._Christy wikiPageWikiLink Asteroid.
- James_W._Christy wikiPageWikiLink Astrometry.
- James_W._Christy wikiPageWikiLink Astronomer.
- James_W._Christy wikiPageWikiLink Bachelor_of_Science.
- James_W._Christy wikiPageWikiLink Category:1938_births.
- James_W._Christy wikiPageWikiLink Category:American_astronomers.
- James_W._Christy wikiPageWikiLink Category:Discoverers_of_moons.
- James_W._Christy wikiPageWikiLink Category:Discoverers_of_trans-Neptunian_objects.
- James_W._Christy wikiPageWikiLink Category:Living_people.
- James_W._Christy wikiPageWikiLink Category:People_associated_with_Pluto.
- James_W._Christy wikiPageWikiLink Charon_(moon).
- James_W._Christy wikiPageWikiLink Clyde_Tombaugh.
- James_W._Christy wikiPageWikiLink Eclipse.
- James_W._Christy wikiPageWikiLink Flagstaff,_Arizona.
- James_W._Christy wikiPageWikiLink Hubble_Space_Telescope.
- James_W._Christy wikiPageWikiLink List_of_minor_planets:_129001–130000.
- James_W._Christy wikiPageWikiLink Milwaukee.
- James_W._Christy wikiPageWikiLink Natural_satellite.
- James_W._Christy wikiPageWikiLink New_Horizons.
- James_W._Christy wikiPageWikiLink Pluto.
- James_W._Christy wikiPageWikiLink Robert_Sutton_Harrington.
- James_W._Christy wikiPageWikiLink United_States.
- James_W._Christy wikiPageWikiLink United_States_Naval_Observatory.
- James_W._Christy wikiPageWikiLink University_of_Arizona.
- James_W._Christy wikiPageWikiLinkText "Christy".
- James_W._Christy wikiPageWikiLinkText "J. Christy".
- James_W._Christy wikiPageWikiLinkText "James Christy".
- James_W._Christy wikiPageWikiLinkText "James W. Christy".
- James_W._Christy align "right".
- James_W._Christy almaMater University_of_Arizona.
- James_W._Christy birthDate "1938-09-15".
- James_W._Christy birthPlace Milwaukee.
- James_W._Christy birthPlace United_States.
- James_W._Christy caption "--07-13".
- James_W._Christy caption "James Christy and Robert Harrington in 1978.".
- James_W._Christy direction "vertical".
- James_W._Christy fields "Astronomy, astrometry".
- James_W._Christy image "Charon_in_Color_%28HQ%29.jpg".
- James_W._Christy name "James W. Christy".
- James_W._Christy nationality "American".
- James_W._Christy width "225".
- James_W._Christy wikiPageUsesTemplate Template:Birth_date_and_age.
- James_W._Christy wikiPageUsesTemplate Template:Infobox_scientist.
- James_W._Christy wikiPageUsesTemplate Template:MPCit_JPL.
- James_W._Christy wikiPageUsesTemplate Template:Multiple_image.
- James_W._Christy wikiPageUsesTemplate Template:Reflist.
- James_W._Christy workplaces United_States_Naval_Observatory.
- James_W._Christy workplaces "Hughes Missile Systems".
- James_W._Christy subject Category:1938_births.
- James_W._Christy subject Category:American_astronomers.
- James_W._Christy subject Category:Discoverers_of_moons.
- James_W._Christy subject Category:Discoverers_of_trans-Neptunian_objects.
- James_W._Christy subject Category:Living_people.
- James_W._Christy subject Category:People_associated_with_Pluto.
- James_W._Christy hypernym Christy.
- James_W._Christy type Agent.
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- James_W._Christy type Scientist.
- James_W._Christy type Person.
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- James_W._Christy type Scientist.
- James_W._Christy type Agent.
- James_W._Christy type NaturalPerson.
- James_W._Christy type Thing.
- James_W._Christy type Q215627.
- James_W._Christy type Q5.
- James_W._Christy type Q901.
- James_W._Christy type Person.
- James_W._Christy comment "James Walter \"Jim\" Christy (born September 15, 1938) is an American astronomer.Christy was born in 1938 in Milwaukee, Wisconsin. He attended the University of Arizona and earned a Bachelor of Science degree in astronomy from there in 1965. On June 22, 1978 while working at the United States Naval Observatory, he discovered that Pluto had a moon, which he named Charon shortly afterwards.".
- James_W._Christy label "James W. Christy".
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- James_W._Christy sameAs James_W._Christy.
- James_W._Christy sameAs James_W._Christy.
- James_W._Christy sameAs James_Walter_Christy.