Rollandia
1269 Rollandia (1930 SH)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Diameter
- 104.893 km
- Rotation period
- 60.45 hours
- Albedo
- 0.048
- Absolute magnitude H
- 8.76 mag
- Spectral type (Tholen)
- D
Orbit
- Orbit class (JPL)
- OMB — Outer Main-belt Asteroid
- Semi-major axis
- 3.93 AU
- Eccentricity
- 0.0973
- Inclination
- 2.76°
- Perihelion distance
- 3.55 AU
- Aphelion distance
- 4.31 AU
- Orbital period
- 2,850 days
- Perihelion passage
- JD 2461444.854
- Earth MOID
- 2.56 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- About 105 km across — 26.2% of the 400 km Seoul–Busan expressway.
- One orbit takes about 2,850 Earth days (about 7.8 years).
- Sunlight needs about 33 minutes to reach it on average (semi-major axis 3.9 AU) — versus about 8 min 19 s to Earth.
Worked out from this object's official values.