(298) Baptistina Main-belt Asteroid

Discovered on 9 September 1890 by A. Charlois at Nice.

Where Baptistina is today

MercuryVenusEarthEarthMarsMarsBaptistinaBaptistina

Seen from above the solar system on 2026-10-14: Baptistina is 2.46 au from the Sun and 1.72 au from Earth. Computed from JPL's orbital elements.

Facts

Number298
Provisional designationA890 RB
Orbit classMain-belt Asteroid
Diameter21.1 km (#2,069 largest of 17,440 named asteroids with a measured size)
Albedo0.131
Rotation period16.2 hours
Absolute magnitude (H)11.2
Orbital period3.41 years
Semi-major axis2.26 au
Perihelion – aphelion2.05 – 2.48 au
Eccentricity0.0952
Inclination6.28°
Closest distance between its orbit and Earth's (MOID)1.07 au

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

Also discovered on 9 September 1890

More named asteroids discovered by A. Charlois