(6745) Nishiyama Main-belt Asteroid

Discovered on 7 May 1994 by Endate, K., Watanabe, K. at Kitami.

Named in honor of Minewo Nishiyama (b. 1925), amateur astronomer and president of the Chikushi Astronomical Association from 1944 to 1947. Beginning in 1944 and under the direction of H. Hirose, Nishiyama was the first amateur in Japan to make orbital calculations on minor planets. More recently he has studied the astronomical histories of Asian countries, particularly the old Burmese constellations. Name proposed by the discoverers following a suggestion from H. Oishi.Naming citation (19980610/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Nishiyama is today

Seen from above the solar system on 2026-10-14: Nishiyama is 2.21 au from the Sun and 2.55 au from Earth. Computed from JPL's orbital elements.

Facts

Number	6745
Provisional designation	1994 JD1
Orbit class	Main-belt Asteroid
Diameter	2.57 km (#16,124 largest of 17,440 named asteroids with a measured size)
Albedo	0.259
Absolute magnitude (H)	14.83
Orbital period	3.32 years
Semi-major axis	2.23 au
Perihelion – aphelion	1.92 – 2.54 au
Eccentricity	0.140
Inclination	6.07°
Closest distance between its orbit and Earth's (MOID)	0.922 au

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

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

All 535

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