(5216) Cannizzo Main-belt Asteroid

Discovered on 16 April 1941 by L. Oterma at Turku.

John Kendall Cannizzo (1957-2018) was an American astrophysicist who worked at the NASA's Goddard Space Flight Center. He also spent time at the Harvard College Observatory, where he met his wife Catherine Asaro, and did research as a Humboldt Fellow at the Max Planck Institute for Astrophysics.Naming citation (MPC batch dated 2024-11-15), IAU / Minor Planet Center, via NASA/JPL

Where Cannizzo is today

MercuryVenusEarthEarthMarsMarsCannizzoCannizzo

Seen from above the solar system on 2026-10-14: Cannizzo is 2.21 au from the Sun and 2.05 au from Earth. Computed from JPL's orbital elements.

Facts

Number5216
Provisional designation1941 HA
Orbit classMain-belt Asteroid
Diameter11.3 km (#4,399 largest of 17,440 named asteroids with a measured size)
Albedo0.305
Rotation period32.2 hours
Absolute magnitude (H)12.09
Orbital period4.22 years
Semi-major axis2.61 au
Perihelion – aphelion2.19 – 3.03 au
Eccentricity0.160
Inclination14.1°
Closest distance between its orbit and Earth's (MOID)1.18 au

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

Also named after someone called John

More named asteroids discovered by L. Oterma