(16037) Sheehan Outer Main-belt Asteroid

Discovered on 10 April 1999 by LONEOS at Anderson Mesa.

Astronomy historian and psychiatrist William Patrick Sheehan (b. 1954) is a prolific author and the biographer of E. E. Barnard. He has traced the development of early studies of the moon and planets and of the Milky Way, and he has solved several long-standing puzzles in the history of astronomy.Naming citation (20040928/MPCPages.arc), IAU / Minor Planet Center, via NASA/JPL

👶 Sheehan as a baby name

Where Sheehan is today

Seen from above the solar system on 2026-10-14: Sheehan is 3.38 au from the Sun and 3.79 au from Earth. Computed from JPL's orbital elements.

Facts

Number	16037
Provisional designation	1999 GX8
Orbit class	Outer Main-belt Asteroid
Diameter	14.3 km (#3,317 largest of 17,440 named asteroids with a measured size)
Albedo	0.0660
Absolute magnitude (H)	13.09
Orbital period	5.80 years
Semi-major axis	3.23 au
Perihelion – aphelion	3.07 – 3.38 au
Eccentricity	0.0482
Inclination	15.3°
Closest distance between its orbit and Earth's (MOID)	2.10 au

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

Also named after someone called William

All asteroids named after someone called William

Also discovered on 10 April 1999

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