(9628) Sendaiotsuna Main-belt Asteroid

Discovered on 16 July 1993 by E. F. Helin at Palomar.

Sendai Otsunahiki is a 400-year-old tug-of-war festival, held in Satsumasendai City in the evening of the day before the Autumnal Equinox. Japan's biggest tug-of-war rope, “Sendai Otsuna”, 365 meters in length and six tons in weight, is used for the festival.Naming citation (MPC batch dated 2013-07-22), IAU / Minor Planet Center, via NASA/JPL

Where Sendaiotsuna is today

Seen from above the solar system on 2026-10-14: Sendaiotsuna is 2.80 au from the Sun and 3.52 au from Earth. Computed from JPL's orbital elements.

Facts

Number	9628
Provisional designation	1993 OB2
Orbit class	Main-belt Asteroid
Diameter	8.45 km (#6,180 largest of 17,440 named asteroids with a measured size)
Albedo	0.301
Absolute magnitude (H)	12.36
Orbital period	4.21 years
Semi-major axis	2.61 au
Perihelion – aphelion	2.08 – 3.14 au
Eccentricity	0.203
Inclination	12.4°
Closest distance between its orbit and Earth's (MOID)	1.12 au

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

Also named after someone called Sendai

(10500) Nishi-koen

All asteroids named after someone called Sendai

Also discovered on 16 July 1993

(9069) Hovland

More named asteroids discovered by E. F. Helin

All 267

← (9626) Stanley · (9629) Servet →