Discovered by Okuro Oikawa Minor planet category Main belt Discovered 17 November 1927 Discoverer Okuro Oikawa Asteroid family Flora family | Discovery date 17 November 1927 Observation arc 120.83 yr (44133 days) Orbits Sun Named after Tama River Moon S/2003 (1089) 1 | |
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Alternative names A894 VA; A904 VD;
A919 HA; 1927 WB;
1930 ST; 1952 HE4 Aphelion 2.49560 AU (373.336 Gm) Similar Asteroid belt, 1338 Duponta, 283 Emma, Solar System, 1333 Cevenola | ||
1089 Tama is a main-belt asteroid that measures ~13 km in diameter. It was discovered by Japanese astronomer Okuro Oikawa in 1927, and is named after the Tama River in Japan.
In 2004, it was announced that Tama has a moon, designated S/2003 (1089) 1. The satellite was identified based on lightcurve observations from 24 December 2003 to 5 January 2004 by Raoul Behrend, René Roy, Claudine Rinner, Pierre Antonini, Petr Pravec, Alan Harris, Stefano Sposetti, Russell Durkee, and Alain Klotz. The moon is about 9 km in diameter. It may orbits 20 km away in a period of 0.6852±0.0002 days (synchronously), and Tama itself appears to be somewhat elongated in shape.
References
1089 Tama Wikipedia(Text) CC BY-SA