(5091) Isakovskij Main-belt Asteroid

Discovered on 25 September 1981 by L. I. Chernykh at Nauchnyj.

Where Isakovskij is today

MercuryVenusEarthEarthMarsMarsIsakovskijIsakovskij

Seen from above the solar system on 2026-10-14: Isakovskij is 2.75 au from the Sun and 3.54 au from Earth. Computed from JPL's orbital elements.

Facts

Number5091
Provisional designation1981 SD4
Orbit classMain-belt Asteroid
Diameter14.3 km (#3,309 largest of 17,440 named asteroids with a measured size)
Albedo0.0710
Rotation period13.6 hours
Spectral typeC
Absolute magnitude (H)12.72
Orbital period4.64 years
Semi-major axis2.78 au
Perihelion – aphelion2.75 – 2.81 au
Eccentricity0.0111
Inclination3.21°
Closest distance between its orbit and Earth's (MOID)1.74 au

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

Also discovered on 25 September 1981

More named asteroids discovered by L. I. Chernykh