(6818) Sessyu Main-belt Asteroid

Discovered on 11 March 1983 by Kosai, H., Hurukawa, K. at Kiso.

Born at Soja-Akahama in Okayama Prefecture, Sessyu (1420-1508) is called the “saint of painting”. According to tradition, he drew a mouse with his own tears on a corridor when he was a novitiate at Houhukuji-Temple in Soja City. Afterwards he went to Ming (now People's Republic of China) and was initiated into the mysteries of ink painting-monochrome painting characterized by the use of sumi (black ink). In Japan he then laid the foundation for Japanese ink painting.Naming citation (19990202/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Sessyu is today

Seen from above the solar system on 2026-10-14: Sessyu is 2.31 au from the Sun and 2.92 au from Earth. Computed from JPL's orbital elements.

Facts

Number	6818
Provisional designation	1983 EM1
Orbit class	Main-belt Asteroid
Diameter	4.99 km (#10,630 largest of 17,440 named asteroids with a measured size)
Albedo	0.235
Rotation period	3.07 hours
Absolute magnitude (H)	14.11
Orbital period	3.30 years
Semi-major axis	2.22 au
Perihelion – aphelion	2.03 – 2.40 au
Eccentricity	0.0827
Inclination	4.25°
Closest distance between its orbit and Earth's (MOID)	1.05 au

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

More named asteroids discovered by Kosai, H., Hurukawa, K.

All 90

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