(5840) Raybrown Main-belt Asteroid

Discovered on 28 July 1978 by Perth Observatory at Bickley.

A brilliant and influential jazz bassist, Raymond Matthews Brown (1926-2002) played in Dizzy Gillespie's band and later with the Oscar Peterson trio. For a while married to and musical director for Ella Fitzgerald, he was part of the L.A. Four in the 1970s and led the Ray Brown Trio from 1984 until the day he died.Naming citation (20060219/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Raybrown is today

Seen from above the solar system on 2026-10-14: Raybrown is 3.02 au from the Sun and 3.92 au from Earth. Computed from JPL's orbital elements.

Facts

Number	5840
Provisional designation	1978 ON
Orbit class	Main-belt Asteroid
Diameter	9.73 km (#5,256 largest of 17,440 named asteroids with a measured size)
Albedo	0.196
Spectral type	Ld
Absolute magnitude (H)	12.63
Orbital period	4.56 years
Semi-major axis	2.75 au
Perihelion – aphelion	2.46 – 3.04 au
Eccentricity	0.105
Inclination	3.34°
Closest distance between its orbit and Earth's (MOID)	1.46 au

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

Also named after someone called Raymond

All asteroids named after someone called Raymond

Also discovered on 28 July 1978

More named asteroids discovered by Perth Observatory

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