(1690) Mayrhofer Main-belt Asteroid
Discovered on 8 November 1948 by M. Laugier at Nice.
Named in honor of Karl Mayrhofer, Austrian astronomer, currently living at Ried im Innkreis, well known for his orbit computations on minor planets. Name proposed by O. Kippes, who found some of the identifications involving this planet.Naming citation (MPC 5523), IAU / Minor Planet Center, via NASA/JPL
Where Mayrhofer is today
Seen from above the solar system on 2026-10-14: Mayrhofer is 2.99 au from the Sun and 3.02 au from Earth. Computed from JPL's orbital elements.
Facts
| Number | 1690 |
| Provisional designation | 1948 VB |
| Orbit class | Main-belt Asteroid |
| Diameter | 33.8 km (#1,194 largest of 17,440 named asteroids with a measured size) |
| Albedo | 0.0560 |
| Rotation period | 19.0 hours |
| Absolute magnitude (H) | 11.05 |
| Orbital period | 5.30 years |
| Semi-major axis | 3.04 au |
| Perihelion – aphelion | 2.75 – 3.33 au |
| Eccentricity | 0.0952 |
| Inclination | 13.1° |
| Closest distance between its orbit and Earth's (MOID) | 1.76 au |
Data: NASA/JPL Small-Body Database and the IAU Minor Planet Center.
Also named after someone called Karl
- (4463) Marschwarzschild
- (5171) Augustesen
- (6059) Diefenbach
- (6597) Kreil
- (6712) Hornstein
- (10099) Glazebrook
- (11434) Lohnert
- (13816) Stulpner
- (13977) Frisch
- (14014) Munchhausen
- (14100) Weierstrass
- (15728) Karlmay
All asteroids named after someone called Karl
More named asteroids discovered by M. Laugier
- (1247) Memoria
- (1426) Riviera
- (1461) Jean-Jacques
- (1651) Behrens
- (1681) Steinmetz
- (1730) Marceline
- (1755) Lorbach
- (1884) Skip
- (2068) Dangreen
- (2106) Hugo
- (2384) Schulhof
- (2393) Suzuki
← (1689) Floris-Jan · (1691) Oort →