Discovered by G. Neujman Observation arc 111.74 yr (40812 days) Absolute magnitude 10.6 Asteroid group Asteroid belt | Discovery date 27 October 1929 Discovered 27 October 1929 Orbits Sun | |
Aphelion 2.6607760 AU (398.04642 Gm) Perihelion 2.1868401 AU (327.14662 Gm) Semi-major axis 2.4238081 AU (362.59653 Gm) Similar 1111 Reinmuthia, 1102 Pepita, Asteroid belt, Sun, 951 Gaspra | ||
1137 Raïssa is a main belt asteroid orbiting the Sun. Approximately 24 kilometers in diameter, it makes a revolution around the Sun once every 4 years. It was discovered by Grigory Neujmin on October 27, 1929. It has a long 142.79 hours rotation period. It is named for Raissa Ivanovna Maseeva, who computed its orbit. Its provisional designation was 1929 WB.
References
1137 Raïssa Wikipedia(Text) CC BY-SA