173 Ino
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Asteroid (173) Ino |
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| Properties of the orbit ( animation ) | |
| Orbit type | Middle main belt |
| Asteroid family | Eunomia family |
| Major semi-axis | 2.743 AU |
| eccentricity | 0.207 |
| Perihelion - aphelion | 2.176 AU - 3.31 AU |
| Inclination of the orbit plane | 14.2 ° |
| Length of the ascending node | 148.3 ° |
| Argument of the periapsis | 227.7 ° |
| Time of passage of the perihelion | October 12, 2009 |
| Sidereal period | 4 a 198 d |
| Mean orbital velocity | 17.8 km / s |
| Physical Properties | |
| Medium diameter | 154.10 (± 3.1) km |
| Albedo | 0.0642 |
| Rotation period | 6 h 10 min |
| Absolute brightness | 7.66 likes |
| Spectral class | C. |
| history | |
| Explorer | A. Borrelly |
| Date of discovery | August 1, 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. | |
(173) Ino is an asteroid of the main asteroid belt discovered by Alphonse Louis Nicolas Borrelly on August 1, 1877 . The celestial body was named after Ino , the Greek mythology after the daughter of Kadmos and Harmonia . Ino helped Odysseus with her veil.
Ino moves at a distance of 2.1709 ( perihelion ) to 3.3138 ( aphelion ) astronomical units in 4.541 years around the sun . The orbit is inclined 14.2069 ° to the ecliptic , the orbital eccentricity is 0.2084. Ino has a mean diameter of just over 150 kilometers. It has a dark carbonaceous surface with an albedo of 0.064.
It rotates around its own axis in around 6 hours and 12 minutes.