(452) Hamiltonia Main-belt Asteroid

Discovered on 6 December 1899 by J. E. Keeler at Mount Hamilton.

Where Hamiltonia is today

MercuryVenusEarthEarthMarsMarsHamiltoniaHamiltonia

Seen from above the solar system on 2026-10-14: Hamiltonia is 2.84 au from the Sun and 3.80 au from Earth. Computed from JPL's orbital elements.

Facts

Number452
Provisional designationA899 XB
Orbit classMain-belt Asteroid
Diameter11.6 km (#4,281 largest of 17,440 named asteroids with a measured size)
Albedo0.252
Rotation period2.88 hours
Absolute magnitude (H)11.86
Orbital period4.80 years
Semi-major axis2.85 au
Perihelion – aphelion2.82 – 2.88 au
Eccentricity0.0107
Inclination3.23°
Closest distance between its orbit and Earth's (MOID)1.83 au

Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.

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