(3200) Phaethon Apollo

Discovered on 11 October 1983 by IRAS at IRAS.

Where Phaethon is today

MercuryVenusEarthEarthMarsMarsPhaethonPhaethon

Seen from above the solar system on 2026-10-14: Phaethon is 1.06 au from the Sun and 0.385 au from Earth. Computed from JPL's orbital elements.

Facts

Number3200
Provisional designation1983 TB
Orbit classApollo · near-Earth · potentially hazardous
Diameter6.25 km (#8,583 largest of 17,440 named asteroids with a measured size)
Albedo0.107
Rotation period3.60 hours
Spectral typeF
Absolute magnitude (H)14.38
Orbital period1.43 years
Semi-major axis1.27 au
Perihelion – aphelion0.140 – 2.40 au
Eccentricity0.890
Inclination22.3°
Closest distance between its orbit and Earth's (MOID)0.0187 au

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

More named asteroids discovered by IRAS