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Ceto
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Number
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65489
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Provisional name
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2003 FX128
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Class
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SDO
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Discovery
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22.03.2003, 06:39:23 UT, Palomar Mountain, CA, USA
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Discovery chart
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Discovery position
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19° Libra 40' Rx
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Time of announcement
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25.04.2003 - 21:46 UT
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Naming
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09.11.2006
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Orbital period
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998 years
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Orbit
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Aphelion
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182 AU
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Perihelion
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17.795 AU
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Semimajor axis
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99.676 AU
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Magnitude
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6.3
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Diameter
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105 - 328 km
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Inclination
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22.3
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Ceto has a binary companion. This is the second known tidally-evolved transneptunian binary system after Pluto-Charon (a situation where the spin period of the components is equal to their orbital period and therefore they present the same face to one another all the time). Ceto and its companion form a close binary system and their mutual orbit is nearly circular. A tidally-evolved binary Centaur |
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Satellite
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Phorcys
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Discovery
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11.04.2006, Hubble Space Telescope (HST)
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Time of announcement
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August 2006
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Naming
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November 2006
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Distance between pair
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1 841 km +/- 48 km
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Orbital period
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9.554 +/- 0.011 d |
 Photo: Copyright © Susanna Kauppinen. |
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Mythology
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Keto was a hideous sea monster, a daughter of Gaia and Pontus. Her name means the "whale" or "sea-monster". Keto's partner Phorkys was an ancient sea-god associated with seals. Tyfon's partner Ekhidna was offspring of Keto and Phorkys. Theoi Project - Keto http://en.wikipedia.org/wiki/Ceto http://en.wikipedia.org/wiki/Gaia |
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Astrology
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Solar Eclipse in Aquarius -- 26.01.2009, 07:55 UT (The Sun and the Moon square Ceto in Scorpio)
New Moon in Pisces -- 25.02.2009, 01:35 UT (The Sun and the Moon trine Ceto) New Moon in Taurus -- 25.04.2009, 03:23 UT (The Sun and the Moon opposite Ceto) |