Troilus
1208 Troilus (1931 YA)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 100.477 km
- Rotation period
- 56.17 hours
- Albedo
- 0.041
- Absolute magnitude H
- 9.03 mag
- Spectral type (Tholen)
- FCU
Orbit
- Orbit class (JPL)
- TJN — Jupiter Trojan
- Semi-major axis
- 5.25 AU
- Eccentricity
- 0.0924
- Inclination
- 33.5°
- Perihelion distance
- 4.77 AU
- Aphelion distance
- 5.74 AU
- Orbital period
- 4,400 days
- Perihelion passage
- JD 2460289.699
- Earth MOID
- 3.88 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 100 km across — 25.1% of the 400 km Seoul–Busan expressway.
- One orbit takes about 4,400 Earth days (about 12 years).
- Sunlight needs about 44 minutes to reach it on average (semi-major axis 5.3 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.