Ino
173 Ino (A877 PA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 125.821 km
- Rotation period
- 6.15 hours
- Albedo
- 0.096
- Absolute magnitude H
- 7.91 mag
- Spectral type (Tholen)
- C
- Spectral type (SMASS)
- Xk
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.74 AU
- Eccentricity
- 0.209
- Inclination
- 14.2°
- Perihelion distance
- 2.17 AU
- Aphelion distance
- 3.32 AU
- Orbital period
- 1,660 days
- Perihelion passage
- JD 2461758.742
- Earth MOID
- 1.19 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 126 km across — 31.5% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,660 Earth days (about 4.5 years).
- Sunlight needs about 23 minutes to reach it on average (semi-major axis 2.7 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.