173 Ino
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.