(604) Tekmessa Main-belt Asteroid

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

Where Tekmessa is today

MercuryVenusEarthEarthMarsMarsTekmessaTekmessa

Seen from above the solar system on 2026-10-14: Tekmessa is 3.08 au from the Sun and 2.96 au from Earth. Computed from JPL's orbital elements.

Facts

Number604
Provisional designationA906 DH
Orbit classMain-belt Asteroid
Diameter64.5 km (#533 largest of 17,440 named asteroids with a measured size)
Albedo0.0900
Rotation period5.56 hours
Spectral typeXc
Absolute magnitude (H)9.58
Orbital period5.61 years
Semi-major axis3.16 au
Perihelion – aphelion2.55 – 3.76 au
Eccentricity0.192
Inclination4.42°
Closest distance between its orbit and Earth's (MOID)1.56 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