(1151) Ithaka Main-belt Asteroid

Discovered on 8 September 1929 by K. Reinmuth at Heidelberg.

Where Ithaka is today

MercuryVenusEarthEarthMarsMarsIthakaIthaka

Seen from above the solar system on 2026-10-14: Ithaka is 1.77 au from the Sun and 0.823 au from Earth. Computed from JPL's orbital elements.

Facts

Number1151
Provisional designation1929 RK
Orbit classMain-belt Asteroid
Diameter12.1 km (#4,028 largest of 17,440 named asteroids with a measured size)
Albedo0.0690
Rotation period4.93 hours
Absolute magnitude (H)13.27
Orbital period3.73 years
Semi-major axis2.41 au
Perihelion – aphelion1.74 – 3.07 au
Eccentricity0.276
Inclination6.57°
Closest distance between its orbit and Earth's (MOID)0.746 au

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

More named asteroids discovered by K. Reinmuth