(176) Iduna
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Asteroid (176) Iduna |
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| Properties of the orbit ( animation ) | |
| Orbit type | Main belt asteroid |
| Major semi-axis | 3.189 AU |
| eccentricity | 0.166 |
| Perihelion - aphelion | 2.66 AU - 3.718 AU |
| Inclination of the orbit plane | 22.6 ° |
| Length of the ascending node | 200.7 ° |
| Argument of the periapsis | 187.1 ° |
| Time of passage of the perihelion | December 14, 2013 |
| Sidereal period | 5 a 254 d |
| Mean orbital velocity | 16.6 km / s |
| Physical Properties | |
| Medium diameter | (121.0 ± 2.2) km |
| Albedo | 0.08 |
| Rotation period | 11.3 h |
| Absolute brightness | 7.9 likes |
| Spectral class | G |
| history | |
| Explorer | CHF Peters |
| Date of discovery | October 14, 1877 |
| 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. | |
(176) Iduna is an asteroid of the outer main asteroid belt , which was discovered by Christian Heinrich Friedrich Peters in New York on October 14, 1877 . The heavenly body was named after Idun , the goddess of youth from Nordic mythology .
Iduna moves at a distance of 2.7 ( perihelion ) to 3.7 ( aphelion ) astronomical units around the sun in 5.7 years . The orbit is strongly inclined towards the ecliptic at 22.5 ° , the orbit eccentricity is 0.16. Iduna has a diameter of about 120 kilometers. It has a dark carbonaceous surface with an albedo of 0.08. It rotates on its own axis in around 11.3 hours.
See also
Individual evidence
- ↑ (176) Iduna in the database of the "Asteroids - Dynamic Site" (AstDyS-2, English).