(8544) Sigenori Main-belt Asteroid

Discovered on 17 December 1993 by T. Kobayashi at Oizumi.

Sigenori Miyamoto (b. 1931) is one of the pioneers of x-ray astronomy in Japan. In 1958, he invented a spark chamber that has been widely used for measuring the path of charged particles. Later, he started studies on x-ray objects and discovered the short time flux variation of x-ray sources.Naming citation (20020921/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Sigenori is today

Seen from above the solar system on 2026-10-14: Sigenori is 2.41 au from the Sun and 3.30 au from Earth. Computed from JPL's orbital elements.

Facts

Number	8544
Provisional designation	1993 YE
Orbit class	Main-belt Asteroid
Diameter	2.74 km (#15,771 largest of 17,440 named asteroids with a measured size)
Albedo	0.408
Absolute magnitude (H)	14.63
Orbital period	3.51 years
Semi-major axis	2.31 au
Perihelion – aphelion	2.11 – 2.50 au
Eccentricity	0.0855
Inclination	0.958°
Closest distance between its orbit and Earth's (MOID)	1.13 au

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

Also discovered on 17 December 1993

More named asteroids discovered by T. Kobayashi

All 288

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