Fides
37 Fides (A855 TB)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 108.35 km
- Rotation period
- 7.3335 hours
- Albedo
- 0.1826
- Absolute magnitude H
- 7.29 mag
- Spectral type (Tholen)
- S
- Spectral type (SMASS)
- S
Orbit
- Orbit class (JPL)
- MBA — Main-belt Asteroid
- Semi-major axis
- 2.64 AU
- Eccentricity
- 0.175
- Inclination
- 3.07°
- Perihelion distance
- 2.18 AU
- Aphelion distance
- 3.1 AU
- Orbital period
- 1,570 days
- Perihelion passage
- JD 2461816.560
- Earth MOID
- 1.2 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 108 km across — 27.1% of the 400 km Seoul–Busan expressway.
- One orbit takes about 1,570 Earth days (about 4.3 years).
- Sunlight needs about 22 minutes to reach it on average (semi-major axis 2.6 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.