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F r o m W i k i p e d i a , t h e f r e e e n c y c l o p e d i a
42355 Typhon (; provisional designation 2002 CR46 ) is a scattered disc object that was discovered on February 5, 2002, by the NEAT program. It measures 162± 7 km in diameter, and is named after Typhon , a monster in Greek mythology .
Typhon is the first known binary centaur ,[8] using an extended definition of a centaur as an object on a non-resonant (unstable) orbit with the perihelion inside the orbit of Neptune.[9]
A large moon was identified in 2006. It is named Echidna (formal designation (42355) Typhon I Echidna ), after the monstrous mate of Typhon . It orbits Typhon at ~1300 km, completing one orbit in about 11 days. Its diameter is estimated to be 89 ± 6 km .
References [ edit ]
^ "List Of Centaurs and Scattered-Disk Objects" . Minor Planet Center . Retrieved 2008-09-21 .
^ (42355) Typhon and Echidna
^ "Typhonian" . Oxford English Dictionary (Online ed.). Oxford University Press . (Subscription or participating institution membership required.)
^ a b c d Duffard, R.; Pinilla-Alonso, N.; Santos-Sanz, P.; Vilenius, E.; Ortiz, J. L.; Mueller, T.; et al. (April 2014). " "TNOs are Cool": A survey of the trans-Neptunian region. XI. A Herschel-PACS view of 16 Centaurs". Astronomy and Astrophysics . 564 : 17. arXiv :1309.0946 . Bibcode :2014A&A...564A..92D . doi :10.1051/0004-6361/201322377 . S2CID 119177446 .
^ a b Santos-Sanz, P., Lellouch, E., Fornasier, S., Kiss, C., Pal, A., Müller, T. G., Vilenius, E., Stansberry, J., Mommert, M., Delsanti, A., Mueller, M., Peixinho, N., Henry, F., Ortiz, J. L., Thirouin, A., Protopapa, S., Duffard, R., Szalai, N., Lim, T., Ejeta, C., Hartogh, P., Harris, A. W., & Rengel, M. (2012). “TNOs are Cool”: A Survey of the Transneptunian Region IV - Size/albedo characterization of 15 scattered disk and detached objects observed with Herschel Space Observatory-PACS
^
K. Noll; H. Levison; W. Grundy; D. Stephens (October 2006). "Discovery of a binary Centaur". Icarus . 184 (2 ): 611. arXiv :astro-ph/0605606 . Bibcode :2006Icar..184..611N . doi :10.1016/j.icarus.2006.05.010 . S2CID 18927838 .
^
J. L. Elliot; S. D. Kern; K. B. Clancy; A. A. S. Gulbis; R. L. Millis; M. W. Buie; et al. (February 2005). "The Deep Ecliptic Survey: A Search for Kuiper Belt Objects and Centaurs. II. Dynamical Classification, the Kuiper Belt Plane, and the Core Population" (PDF) . The Astronomical Journal . 129 (2 ): 1117. Bibcode :2005AJ....129.1117E . doi :10.1086/427395 .
^ "Echidna" . Oxford English Dictionary (Online ed.). Oxford University Press . (Subscription or participating institution membership required.)
^ François Hartog (Janet Lloyd, trans., 1988) The Mirror of Herodotus , p. 25
^ J. A. Weinstock (2014) The Ashgate Encyclopedia of Literary and Cinematic Monsters , p. 79
^ George Sandys (1669) Ovid's Metamorphosis Englished, 6th ed., p. 134.
External links [ edit ]
t
e
R e t r i e v e d f r o m " https://en.wikipedia.org/w/index.php?title=42355_Typhon&oldid=1227115370 "
C a t e g o r i e s :
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a d d i t i o n a l t e r m s m a y a p p l y . B y u s i n g t h i s s i t e , y o u a g r e e t o t h e T e r m s o f U s e a n d P r i v a c y P o l i c y . W i k i p e d i a ® i s a r e g i s t e r e d t r a d e m a r k o f t h e W i k i m e d i a F o u n d a t i o n , I n c . , a n o n - p r o f i t o r g a n i z a t i o n .
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