(18458) Caesar Main-belt Asteroid

Discovered on 5 March 1995 by F. Borngen at Tautenburg.

Emperor Gaius Julius Caesar (100-44 B.C.) promulgated in 46 B.C. on the advice of the Alexandrine astronomer Sosigenes what is now called the Julian calendar. In 44 B.C., after the assassination of Julius, the fifth month “Quintilis” was renamed Julius (July).Naming citation (20020526/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Caesar is today

MercuryVenusEarthEarthMarsMarsCaesarCaesar

Seen from above the solar system on 2026-10-14: Caesar is 1.99 au from the Sun and 2.99 au from Earth. Computed from JPL's orbital elements.

Facts

Number18458
Provisional designation1995 EY8
Orbit classMain-belt Asteroid
Diameter2.42 km (#16,411 largest of 17,440 named asteroids with a measured size)
Albedo0.300
Absolute magnitude (H)15.14
Orbital period3.49 years
Semi-major axis2.30 au
Perihelion – aphelion1.98 – 2.62 au
Eccentricity0.138
Inclination5.87°
Closest distance between its orbit and Earth's (MOID)0.982 au

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

Also named after someone called Julius

Also discovered on 5 March 1995

More named asteroids discovered by F. Borngen