1909 Alekhin

1909 Alekhin
Discovery
Discovered byL. Zhuravleva
Discovery siteCrimean Astrophysical Obs.
Discovery date4 September 1972
Designations
(1909) Alekhin
Named after
Alexander Alekhine
(chess grandmaster)
1972 RW2 · 1926 GU
1930 KF · 1930 KM
1934 NZ · 1934 OC
1941 FJ · 1960 FD
1969 UU · 1971 DL
main-belt · (inner)
Orbital characteristics
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc91.06 yr (33,259 days)
Aphelion2.9693 AU
Perihelion1.8758 AU
2.4226 AU
Eccentricity0.2257
3.77 yr (1,377 days)
53.882°
0° 15m 41.04s / day
Inclination1.7955°
227.46°
5.6412°
Physical characteristics
Dimensions15.45±9.22 km
17.33 km (derived)
17.42±1.5 km (IRAS:15)
18.59±0.37 km
18.681±0.043
18.847±0.129 km
148.2252±0.6228 h
148.6±0.2 h
0.0446 (derived)
0.0460±0.0018
0.060±0.004
0.062±0.003
0.067±0.083
0.0700±0.014 (IRAS:15)
S
12.30 · 12.44±0.32 · 12.60 · 12.646±0.003 (R) · 12.8 · 12.9 · 12.91±0.07

    1909 Alekhin, provisional designation 1972 RW2, is a stony asteroid and slow rotator from the inner regions of the asteroid belt, approximately 17 kilometers in diameter. It was discovered on 4 September 1972, by Russian–Ukrainian astronomer Lyudmila Zhuravleva at the Crimean Astrophysical Observatory, Nauchnyj, on the Crimean peninsula, and named after chess grandmaster and World Chess Champion Alexander Alekhine.