(228) Agathe
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Asteroid (228) Agathe |
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| Properties of the orbit ( animation ) | |
| Orbit type | Inner main belt |
| Major semi-axis | 2.201 AU |
| eccentricity | 0.242 |
| Perihelion - aphelion | 1.669 AU - 2.733 AU |
| Inclination of the orbit plane | 2.5 ° |
| Length of the ascending node | 313.4 ° |
| Argument of the periapsis | 18.8 ° |
| Time of passage of the perihelion | January 19, 2010 |
| Sidereal period | 3 a 97 d |
| Mean orbital velocity | 19.8 km / s |
| Physical Properties | |
| Medium diameter | 9.3 km |
| Albedo | 0.2082 |
| Rotation period | 6 h 29 min |
| Absolute brightness | 12.48 mag |
| Spectral class | S. |
| history | |
| Explorer | Johann Palisa |
| Date of discovery | August 19, 1882 |
| 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. | |
(228) Agathe is an asteroid of the inner main asteroid belt , which on 19 August 1882 by Johann Palisa the Observatory of Wien was discovered. Agathe was the daughter of the astronomer Theodor von Oppolzer .
Agathe moves at a distance of 1.6683 ( perihelion ) to 2.7341 ( aphelion ) astronomical units in 3.2659 years around the sun . The orbit is inclined 2.5406 ° to the ecliptic , the orbital eccentricity is 0.2421.
Agathe is only 9 kilometers in diameter. It has a light, silicate-rich surface with an albedo of 0.208.