(5145) Pholus Centaur

Discovered on 9 January 1992 by Spacewatch at Kitt Peak.

Where Pholus is today

MercuryVenusEarthEarthMarsMarsJupiterJupiterSaturnSaturnUranusNeptuneNeptunePholusPholus

Seen from above the solar system on 2026-10-14: Pholus is 30.7 au from the Sun and 30.8 au from Earth. Computed from JPL's orbital elements.

Facts

Number5145
Provisional designation1992 AD
Orbit classCentaur
Diameter190 km (#38 largest of 17,440 named asteroids with a measured size)
Albedo0.0440
Rotation period9.98 hours
Spectral typeZ
Absolute magnitude (H)7.07
Orbital period91.4 years
Semi-major axis20.3 au
Perihelion – aphelion8.63 – 31.9 au
Eccentricity0.575
Inclination24.8°
Closest distance between its orbit and Earth's (MOID)7.65 au

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

Also discovered on 9 January 1992

More named asteroids discovered by Spacewatch