(3895) Earhart
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Asteroid (3895) Earhart |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt asteroid |
| Asteroid family | Phocaea family |
| Major semi-axis | 2.3520 AU |
| eccentricity | 0.1806 |
| Perihelion - aphelion | 1.9272 AU - 2.7768 AU |
| Inclination of the orbit plane | 24.3452 ° |
| Length of the ascending node | 150.8218 ° |
| Argument of the periapsis | 8.7425 ° |
| Sidereal period | 3.61 a |
| Mean orbital velocity | 19.43 km / s |
| Physical Properties | |
| Medium diameter | 10.94 (± 0.8) km |
| Albedo | 0.1228 (± 0.021) |
| Rotation period | 3.564 h (± 0.01) |
| Absolute brightness | 11.8 mag |
| history | |
| Explorer | Carolyn Shoemaker |
| Date of discovery | February 23, 1987 |
| Another name | 1987 DE , 1969 EB, 1980 GS, 1981 PO |
| 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. | |
(3895) Earhart is a main inner belt asteroid discovered on February 23, 1987 by the American astronomer Carolyn Shoemaker at the Palomar Observatory ( IAU code 675) in California . There had already been several unconfirmed sightings of the asteroid: on March 11, 1969 (1969 EB) at the Crimean Observatory in Nautschnyj , in April 1980 (1980 GS) at the Karl Schwarzschild Observatory in the Tautenburg Forest and on August 6, 1981 ( 1981 PO) at the Kleť Observatory near Český Krumlov .
The mean diameter of the asteroid was determined to be 10.94 (± 0.8) km, the albedo of 0.1228 (± 0.021) is comparable to that of the Earth's moon . The asteroid orbits itself in 3.564 hours (± 0.01).
(3895) Earhart belongs to the Phocaea family, a group of asteroids named after (25) Phocaea . The 4: 1 orbital resonance with the planet Jupiter is characteristic of this group . The solar orbit of (3895) Earhart is strongly inclined at more than 24 ° to the ecliptic of the solar system , which is characteristic of Phocaea asteroids. The timeless (non- osculating ) orbital elements of (3895) Earhart are almost identical to those of the smaller, if one assumes the absolute brightness of 16.0 compared to 11.8, asteroids (345371) 2006 AE 96 .
(3895) Earhart was named after the American aviation pioneer and suffragette Amelia Earhart . It was named on March 17, 1995. As early as 1985, a surface structure ( Corona ) on Venus was named after Amelia Earhart: Earhart Corona .
Web links
- (3895) Earhart in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).
- (3895) Earhart in the Small-Body Database of the Jet Propulsion Laboratory .
Individual evidence
- ↑ (3895) Earhart at the IAU Minor Planet Center (English)
- ↑ The family status of the asteroids in the AstDyS-2 database (English, HTML; 51.4 MB)
- ^ Lutz D. Schmadel : Dictionary of Minor Planet Names . Springer, Heidelberg 2003, 5th edition, page 331 (English)
- ↑ The Earhart Corona in the Gazetteer of Planetary Nomenclature of the IAU (WGPSN) / USGS (English)