(19091) Hagen Main-belt Asteroid

Discovered on 6 December 1978 by Bowell, E., Warnock, A. at Palomar.

John P. Hagen (1908–1990) was an American solar radio astronomer who was appointed director of the Navy's Project Vanguard Earth satellite program in 1955. His awards included the Presidential Certificate of Merit and the U.S. Navy's Distinguished Service Medal. John retired in 1975 as head of the Astronomy Department at Pennsylvania State University.Naming citation (WGSBN Bull. 6, #9, 11), IAU / Minor Planet Center, via NASA/JPL

🐶 Hagen as a dog name

Where Hagen is today

Seen from above the solar system on 2026-10-14: Hagen is 2.84 au from the Sun and 2.00 au from Earth. Computed from JPL's orbital elements.

Facts

Number	19091
Provisional designation	1978 XX
Orbit class	Main-belt Asteroid
Diameter	6.93 km (#7,737 largest of 17,440 named asteroids with a measured size)
Albedo	0.306
Rotation period	4.22 hours
Absolute magnitude (H)	12.93
Orbital period	4.36 years
Semi-major axis	2.67 au
Perihelion – aphelion	2.36 – 2.98 au
Eccentricity	0.118
Inclination	13.7°
Closest distance between its orbit and Earth's (MOID)	1.40 au

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

Also named after someone called John

All asteroids named after someone called John

Also discovered on 6 December 1978

More named asteroids discovered by Bowell, E., Warnock, A.

← (19084) Eilestam · (19096) Leonfridman →