1139 Atami
1139 Atami is a Mars-crossing asteroid orbiting the Sun. It makes a revolution around the Sun once every 3 years. It completes one rotation once every 27 hours. It was discovered by Okuro Oikawa and Kazuo Kubokawa on December 1, 1929.[1] It is named after a harbor near Tokyo, Japan. Its provisional designation was 1929 XE.[3]
Binary system
Photometric and Arecibo echo spectra observations in 2005 confirmed a 5 km (3 mi) satellite orbiting at least 15 km (9 mi) from the primary.[2] Due to the similar size of the primary and secondary the Minor Planet Center lists this as a binary companion.[4]
References
- ^ a b "JPL Small-Body Database Browser: 1139 Atami (1929 XE)". http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=1139. Retrieved October 17, 2007.
- ^ a b c "Electronic Telegram No. 430". IAU Central Bureau for Astronomical Telegrams. 2006-03-14. http://www.cbat.eps.harvard.edu/cbet/000400/CBET000430.txt. Retrieved 2011-01-25.
- ^ Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names. Springer. ISBN 3-540-00238-3.
- ^ "Satellites and Companions of Minor Planets". IAU Central Bureau for Astronomical Telegrams. 2009-09-17. http://www.cbat.eps.harvard.edu/minorsats.html. Retrieved 2011-01-25.
External links