(603) Timandra Main-belt Asteroid

Discovered on 16 February 1906 by J. H. Metcalf at Taunton.

Where Timandra is today

MercuryVenusEarthEarthMarsMarsTimandraTimandra

Seen from above the solar system on 2026-10-14: Timandra is 2.59 au from the Sun and 1.67 au from Earth. Computed from JPL's orbital elements.

Facts

Number603
Provisional designationA906 DG
Orbit classMain-belt Asteroid
Diameter13.7 km (#3,477 largest of 17,440 named asteroids with a measured size)
Albedo0.135
Rotation period330 hours
Absolute magnitude (H)11.86
Orbital period4.04 years
Semi-major axis2.54 au
Perihelion – aphelion2.10 – 2.98 au
Eccentricity0.174
Inclination8.03°
Closest distance between its orbit and Earth's (MOID)1.11 au

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

Also discovered on 16 February 1906

More named asteroids discovered by J. H. Metcalf