(9161) Beaufort Main-belt Asteroid

Discovered on 26 January 1987 by E. W. Elst at La Silla.

Francis Beaufort (1774-1857) was an admiral of the British Navy who devised the scale for classifying wind force at sea. Since the (originally 13) force numbers of the Beaufort scale made no reference to the speed of the wind, many attempts have been made to relate the numbers with wind velocity.Naming citation (20030106/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Beaufort is today

MercuryVenusEarthEarthMarsMarsBeaufortBeaufort

Seen from above the solar system on 2026-10-14: Beaufort is 2.82 au from the Sun and 3.78 au from Earth. Computed from JPL's orbital elements.

Facts

Number9161
Provisional designation1987 BZ1
Orbit classMain-belt Asteroid
Diameter6.31 km (#8,491 largest of 17,440 named asteroids with a measured size)
Albedo0.255
Absolute magnitude (H)13.45
Orbital period4.33 years
Semi-major axis2.66 au
Perihelion – aphelion2.30 – 3.01 au
Eccentricity0.134
Inclination14.1°
Closest distance between its orbit and Earth's (MOID)1.36 au

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

Also named after someone called Francis

Also discovered on 26 January 1987

More named asteroids discovered by E. W. Elst