Chadwick A. Trujillo (born November 22, 1973) is a postdoctoral scholar at Caltech researching the Edgeworth-Kuiper belt and the outer solar system. He received his Ph.D. in Astronomy from the University of Hawaii in 2000. November 22 is the 326th day (327th on leap years) of the year in the Gregorian calendar. ... 1973 was a common year starting on Monday. ... The California Institute of Technology (commonly known as Caltech) is a private, coeducational university located in Pasadena, California, in the United States. ... The Kuiper belt (KYE per) is an area of the solar system extending from within the orbit of Neptune (at 30 AU) to 50 AU from the sun, at inclinations consistent with the ecliptic. ... Mosaic of Solar System planets except Pluto, including Earths Moon (not to scale). ... In ancient Greece and other early civilizations, astronomy consisted largely of astrometry, measuring positions of stars and planets in the sky. ... Jean Charlots mural called Commencement is featured at Bachman Hall, the administrative center of the University of Hawai`i System. ... 2000 is a leap year starting on Saturday of the Gregorian calendar. ...

He has discovered several trans-Neptunian objects (TNO): A trans-Neptunian object (TNO) is any object in the solar system with all or most of its orbit beyond that of Neptune. ...

• 2003 UB313 (with Michael E. Brown and David L. Rabinowitz). First TNO discovered larger than Pluto.
• 50000 Quaoar (with Michael E. Brown)
• 90377 Sedna (with Mike Brown and David L. Rabinowitz) — thought to be the first inner Öpik-Oort cloud object.
• 90482 Orcus (with Mike Brown and David L. Rabinowitz) — possibly the largest Kuiper belt object after Pluto.

2003 UB313 is a trans-Neptunian object larger than the planet Pluto. ... Michael (Mike) E. Brown has been an associate professor of planetary astronomy at the California Institute of Technology (Caltech) since 2002. ... David L. Rabinowitz (born 1960) is a professor at Yale University researching the Kuiper belt and the outer solar system. ... Atmospheric characteristics Atmospheric pressure 0. ... Artists impression by G. Bacon of STScI / NASA 50000 Quaoar (pronounced kwah-war, kwah-wor, or kwow-ur, Tongva ) [1] is a Trans-Neptunian object orbiting the Sun in the Edgeworth-Kuiper belt. ... 90377 Sedna is a trans-Neptunian object, discovered by Mike Brown (Caltech), Chad Trujillo (Gemini Observatory) and David L. Rabinowitz (Yale University) on November 14, 2003. ... This diagram shows the presumed distance of the Oort cloud compared to the rest of the solar system. ... 90482 Orcus is a Kuiper Belt object (KBO) that was discovered by Michael (Mike) E. Brown of Caltech, Chadwick (Chad) A. Trujillo of the Gemini Observatory, and David L. Rabinowitz of Yale University. ...

External Link and Source

• Trujillo's home page