(4799) Hirasawa Main-belt Asteroid

Discovered on 8 October 1989 by Mizuno, Y., Furuta, T. at Kani.

Where Hirasawa is today

MercuryVenusEarthEarthMarsMarsHirasawaHirasawa

Seen from above the solar system on 2026-10-14: Hirasawa is 2.68 au from the Sun and 3.66 au from Earth. Computed from JPL's orbital elements.

Facts

Number4799
Provisional designation1989 TC1
Orbit classMain-belt Asteroid
Diameter7.86 km (#6,715 largest of 17,440 named asteroids with a measured size)
Albedo0.104
Rotation period24.0 hours
Absolute magnitude (H)13.9
Orbital period3.88 years
Semi-major axis2.47 au
Perihelion – aphelion2.15 – 2.79 au
Eccentricity0.129
Inclination0.617°
Closest distance between its orbit and Earth's (MOID)1.14 au

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

Also discovered on 8 October 1989

More named asteroids discovered by Mizuno, Y., Furuta, T.