(52) Europe
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Asteroid (52) Europe |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3.097 AU |
| eccentricity | 0.106 |
| Perihelion - aphelion | 2.767 AU - 3.427 AU |
| Inclination of the orbit plane | 7.5 ° |
| Length of the ascending node | 128.8 ° |
| Argument of the periapsis | 344 ° |
| Sidereal period | 5 a 164 d |
| Mean orbital velocity | 16.9 km / s |
| Physical Properties | |
| Medium diameter | 360 km × 315 km × 240 km |
| Dimensions | 5.2 x 10 19 kg |
| Albedo | 0.06 |
| Medium density | 3.6 g / cm³ |
| Rotation period | 5.6 h |
| Absolute brightness | 6.3 mag |
| history | |
| Explorer | HMS Goldschmidt |
| Date of discovery | February 4, 1858 |
| 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. | |
(52) Europa is an asteroid of the main asteroid belt , which was discovered on February 4, 1858 by Hermann Mayer Salomon Goldschmidt . It is named after Europa , the princess from Greek mythology.
Europe moves around the Sun at a distance of 2.8 ( perihelion ) to 3.4 ( aphelion ) astronomical units in 5.4 years . The orbit is inclined 7.5 ° to the ecliptic , the orbital eccentricity is 0.11.
With a mean diameter of around 300 km, Europe is one of the largest asteroids in the main belt. It has a dark surface with an albedo of 0.06.
Occult on July 3, 2011
On July 3, 2011, a rare occultation of a fixed star in the constellation Virgo took place. The star's occultation lasted up to 17.9 seconds and was seen in a strip about 300 km wide in North America. The shape and size of the asteroid could be determined more precisely from many, exact observations of the star cover.
See also
- List of asteroids with references and web links (see also infobox)
Individual evidence
- ↑ www.nasa.gov Join NASA in Measuring an Asteroid. Accessed July 3, 2011