1I/ʻOumuamua
1I/ʻOumuamua = 'Oumuamua (A/2017 U1)
📋 A written introduction is coming — for now this page shows official values only.
Physical data
- Rotation period
- 7.937 hours
- Absolute magnitude H
- 22.08 mag
Orbit
- Orbit class (JPL)
- HYA — Hyperbolic Asteroid
- Semi-major axis
- -1.27 AU
- Eccentricity
- 1.2
- Inclination
- 123°
- Perihelion distance
- 0.256 AU
- Perihelion passage
- JD 2458006.007
- Earth MOID
- 0.0958 AU
Earth approach
- Potentially hazardous (PHA)
- No
- Near-Earth object (NEO)
- No
In everyday life
- One rotation takes about 7.9 hours.
- At its closest it comes 0.3 AU from the Sun — 25.6% of the Earth–Sun distance.
- Eccentricity 1.2 — above 1 (hyperbolic), so it passes the Sun once and does not come back.
Worked out from this object's official values.