(42487) Angstrom
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Asteroid (42487) Angstrom |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 2.4799 AU |
| eccentricity | 0.1369 |
| Perihelion - aphelion | 2.1405 AU - 2.8194 AU |
| Inclination of the orbit plane | 3.8421 ° |
| Length of the ascending node | 279.7372 ° |
| Argument of the periapsis | 61.0496 ° |
| Sidereal period | 3.91 a |
| Mean orbital velocity | 18.91 km / s |
| Physical Properties | |
| Absolute brightness | 15.0 mag |
| history | |
| Explorer |
Freimut Börngen Lutz D. Schmadel |
| Date of discovery | September 9, 1991 |
| Another name | 1991 RY 2 |
| 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. | |
(42487) Ångström is an asteroid of the main belt that was discovered on September 9, 1991 by the German astronomers Freimut Börngen and Lutz D. Schmadel at the Thuringian State Observatory Tautenburg ( IAU code 033) in the Tautenburg Forest in Thuringia .
The asteroid was named on January 6, 2003 after the Swedish astronomer and physicist Anders Jonas Ångström (1814–1874), who explored the solar spectrum and is considered a co-founder of astrospectroscopy .
See also
Web links
- (42487) Ångström in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (42487) Ångström in the Small-Body Database of the Jet Propulsion Laboratory .
- Discovery Circumstances by (42487) Ångström according to the Minor Planet Center of the International Astronomical Union at the Harvard-Smithsonian Center for Astrophysics in Cambridge , Massachusetts (English)