(7710) Ishibashi Outer Main-belt Asteroid

Discovered on 30 November 1994 by T. Kobayashi at Oizumi.

Tadashi Ishibashi (b. 1926), retired sea captain, became interested in stars in 1936 and has observed meteors since 1940. Since 1947 he has collected and studied ancient documents about the stars. Currently he lectures on star topics aboard large passenger ships.Naming citation (20030806/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

Where Ishibashi is today

Seen from above the solar system on 2026-10-14: Ishibashi is 3.26 au from the Sun and 3.20 au from Earth. Computed from JPL's orbital elements.

Facts

Number	7710
Provisional designation	1994 WT2
Orbit class	Outer Main-belt Asteroid
Diameter	17.5 km (#2,579 largest of 17,440 named asteroids with a measured size)
Albedo	0.0690
Rotation period	11.5 hours
Absolute magnitude (H)	12.57
Orbital period	6.30 years
Semi-major axis	3.41 au
Perihelion – aphelion	3.21 – 3.62 au
Eccentricity	0.0598
Inclination	6.28°
Closest distance between its orbit and Earth's (MOID)	2.22 au

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

Also named after someone called Tadashi

All asteroids named after someone called Tadashi

Also discovered on 30 November 1994

More named asteroids discovered by T. Kobayashi

All 288

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