Chad Trujillo

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Chad Trujillo

Chadwick A. "Chad" Trujillo (born November 22, 1973) is an American astronomer, discoverer of minor planets and the co-discoverer of Eris, the the most massive dwarf planet known in the Solar System.[1][2]

Trujillo works with computer software and has examined the orbits of the numerous trans-Neptunian objects (TNOs), which is the outer area of the Solar System that he specialized in. In late August 2005, it was announced that Trujillo, along with Michael E. Brown and David L. Rabinowitz, had discovered Eris in 2003.[2] As a result of the discovery of the satellite Dysnomia, Eris was the first TNO known to be more massive than Pluto.[3]

Career[edit]

Trujillo attended Oak Park and River Forest High School in Oak Park, Illinois. He received his B.Sc. in physics from the Massachusetts Institute of Technology in 1995, and was a member of the Xi chapter of Tau Epsilon Phi, and received his Ph.D. in astronomy from the University of Hawaii in 2000. Trujillo was later a postdoctoral scholar at Caltech, and is currently an astronomer at the Gemini Observatory in Hawaii.[4] He studies the Kuiper belt and the outer Solar System.

The main-belt asteroid 12101 Trujillo is named for him.[1]

List of discoveries[edit]

Minor planets discovered: 50 [5]
79360 Sila–Nunam[5][6][7] February 3, 1997
(181902) 1999 RD215[5][6] September 6, 1999
(126154) 2001 YH140[1] December 18, 2001
(126155) 2001 YJ140[1] December 20, 2001
(119951) 2002 KX14[1] May 17, 2002
50000 Quaoar[1] June 4, 2002
(84719) 2002 VR128[1] November 3, 2002
90377 Sedna[1][2] November 14, 2003
90482 Orcus[1][2] February 17, 2004
(120178) 2003 OP32[1][2] July 26, 2003
(120348) 2004 TY364[1][2] October 3, 2004
136199 Eris[1][2] January 8, 2005
136472 Makemake[1][2] March 31, 2005
341520 Mors–Somnus[8] October 14, 2007
(385201) 1999 RN215[5][6] September 7, 1999
385571 Otrera[8] October 16, 2004
(385695) 2005 TO74[8] October 8, 2005
(415720) 1999 RU215[5][6] September 7, 1999
1 with Michael E. Brown
2 with David L. Rabinowitz
5 with J. X. Luu
6 with D. C. Jewitt
7 with J. Chen
8 with S. S. Sheppard

Trujillo is credited by the Minor Planet Center with the discovery and co-discovery of 50 numbered minor planets between 1996 and 2007, including many trans-Neptunian objects (TNOs) from the Kuiper belt (see table).[5] The last major TNO, Eris, was considered by him, his team, NASA, and many others to be the tenth planet,[4] but the International Astronomical Union assigned it to the new dwarf planet and plutoid status.

The known plutoids are:

References[edit]

  1. ^ a b Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (12101) Trujillo. Springer Berlin Heidelberg. p. 776. ISBN 978-3-540-00238-3. Retrieved July 2016. 
  2. ^ a b "136199 Eris (2003 UB313)". Minor Planet Center. Retrieved July 2016. 
  3. ^ a b Brown, Michael E.; Schaller, Emily L. (June 2007). "The Mass of Dwarf Planet Eris". Science 316 (5831): 1585. Bibcode:2007Sci...316.1585B. doi:10.1126/science.1139415. PMID 17569855. Retrieved July 2016. 
  4. ^ a b "UH Alumnus Chad Trujillo Helps in Discovery of 10th Planet". Nupepa. August 2005. Retrieved July 2016. 
  5. ^ a b "Minor Planet Discoverers (by number)". Minor Planet Center. 23 May 2016. Retrieved June 2016. 
  6. ^ "136108 Haumea (2003 EL61)". Minor Planet Center. Retrieved July 2016. 
  7. ^ "136472 Makemake (2005 FY9)". Minor Planet Center. Retrieved July 2016. 

External links[edit]