(4043) Perolof Main-belt Asteroid

Discovered on 17 October 1977 by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T. at Palomar.

Where Perolof is today

MercuryVenusEarthEarthMarsMarsPerolofPerolof

Seen from above the solar system on 2026-10-14: Perolof is 2.84 au from the Sun and 2.16 au from Earth. Computed from JPL's orbital elements.

Facts

Number4043
Provisional designation1175 T-3
Orbit classMain-belt Asteroid
Diameter17.7 km (#2,553 largest of 17,440 named asteroids with a measured size)
Albedo0.0540
Rotation period5.49 hours
Absolute magnitude (H)12.61
Orbital period5.50 years
Semi-major axis3.12 au
Perihelion – aphelion2.82 – 3.41 au
Eccentricity0.0961
Inclination6.57°
Closest distance between its orbit and Earth's (MOID)1.80 au

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

Also discovered on 17 October 1977

More named asteroids discovered by van Houten, C. J., van Houten-Groeneveld, I., Gehrels, T.