(8693) Matsuki Main-belt Asteroid

Discovered on 16 November 1992 by Endate, K., Watanabe, K. at Kitami.

Noboru Matsuki (b. 1934) is an amateur astronomer who has accumulated a huge amount of observational data on sunspots since 1958.Naming citation (20010804/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Matsuki is today

MercuryVenusEarthEarthMarsMarsMatsukiMatsuki

Seen from above the solar system on 2026-10-14: Matsuki is 2.30 au from the Sun and 2.17 au from Earth. Computed from JPL's orbital elements.

Facts

Number8693
Provisional designation1992 WH1
Orbit classMain-belt Asteroid
Diameter5.94 km (#9,024 largest of 17,440 named asteroids with a measured size)
Albedo0.379
Rotation period6.11 hours
Absolute magnitude (H)13.09
Orbital period3.73 years
Semi-major axis2.41 au
Perihelion – aphelion2.03 – 2.78 au
Eccentricity0.157
Inclination6.93°
Closest distance between its orbit and Earth's (MOID)1.04 au

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

Also named after someone called Noboru

Also discovered on 16 November 1992

More named asteroids discovered by Endate, K., Watanabe, K.