(3749) Balam
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Asteroid (3749) Balam |
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|---|---|
| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.2367 AU |
| eccentricity | 0.1093 |
| Perihelion - aphelion | 1.9923 AU - 2.4811 AU |
| Inclination of the orbit plane | 5.3823 ° |
| Sidereal period | 3.35 a |
| Mean orbital velocity | 19.91 km / s |
| Physical Properties | |
| Rotation period | 2.8048 h |
| Absolute brightness | 13.1 mag |
| history | |
| Explorer | E. Bowell |
| Date of discovery | January 24, 1982 |
| Another name | 1985 BG 1 , 1954 XM, 1962 ED, 1974 YO |
| Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items. | |
(3749) Balam is an asteroid of the main belt , which on 24 January 1982 by the American astronomer Edward LG Bowell at the Anderson Mesa Station (IAU code 688) of the Lowell Observatory in Coconino County was discovered.
In February 2002, a team of astronomers, using the northern telescope at the Gemini Observatory on Mauna Kea , discovered that (3749) Balam has a moon. This satellite with the designation S / 2002 (3749) 1 has a diameter of about 1.5 km and orbits Balam in 110 days at a distance of 310 km.
In March 2008, Franck Marchis discovered a larger (3 km) inner companion that orbits Balam in 33.38 hours at intervals of 20 km, so that it is a triple system.
The asteroid was named after the Canadian astronomer David D. Balam , who discovered comet Zhu-Balam .
See also
Web links
- Asteroid Balam: Discovery Circumstances according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics, Cambridge, USA
- (3749) Balam in the Small-Body Database of the Jet Propulsion Laboratory .
- (3749) Balam in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- Johnston's Archives: (3749) Balam
Individual evidence
- ↑ WJ Merline et al. Discovery of a Loosely-bound Companion to Main-belt Asteroid (3749) Balam; American Astronomical Society Volume 34 Pages 835 ff. Edition 2002 bibcode : 2002DPS .... 34.0201M .
- ↑ Johnston's Archives; Wm. Robert Johnston; January 13, 2009; http://www.johnstonsarchive.net/astro/astmoons/am-03749.html (3749) Balam, S / 2002 (3749) 1, and undesignated companion; Retrieved October 27, 2009