(173) Ino Main-belt Asteroid
Discovered on 1 August 1877 by A. Borrelly at Marseilles.
Where Ino is today
Seen from above the solar system on 2026-10-14: Ino is 2.89 au from the Sun and 3.48 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 173 |
| Provisional designation | A877 PA |
| Orbit class | Main-belt Asteroid |
| Diameter | 126 km (#141 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0960 |
| Rotation period | 6.15 hours |
| Spectral type | C |
| Absolute magnitude (H) | 7.91 |
| Orbital period | 4.54 years |
| Semi-major axis | 2.74 au |
| Perihelion – aphelion | 2.17 – 3.32 au |
| Eccentricity | 0.209 |
| Inclination | 14.2° |
| Closest distance between its orbit and Earth's (MOID) | 1.19 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
More named asteroids discovered by A. Borrelly
- (99) Dike
- (110) Lydia
- (117) Lomia
- (120) Lachesis
- (146) Lucina
- (157) Dejanira
- (171) Ophelia
- (172) Baucis
- (198) Ampella
- (233) Asterope
- (240) Vanadis
- (246) Asporina
← (172) Baucis · (174) Phaedra →