1909 Alekhin

1909 Alekhin
Discovery[1]
Discovered byL. Zhuravleva
Discovery siteCrimean Astrophysical Obs.
Discovery date4 September 1972
Designations
(1909) Alekhin
Named after
Alexander Alekhine
(chess grandmaster)[2]
1972 RW2 · 1926 GU
1930 KF · 1930 KM
1934 NZ · 1934 OC
1941 FJ · 1960 FD
1969 UU · 1971 DL
main-belt · (inner)[3]
Orbital characteristics[1]
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[4]
17.33 km (derived)[3]
17.42±1.5 km (IRAS:15)[5]
18.59±0.37 km[6]
18.681±0.043[7]
18.847±0.129 km[8]
148.2252±0.6228 h[9]
148.6±0.2 h[10]
0.0446 (derived)[3]
0.0460±0.0018[8]
0.060±0.004[7]
0.062±0.003[6]
0.067±0.083[4]
0.0700±0.014 (IRAS:15)[5]
S[3]
12.30[6][8] · 12.44±0.32[11] · 12.60[4] · 12.646±0.003 (R)[9] · 12.8[1][3] · 12.9[12] · 12.91±0.07[10]

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.[2][13]

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  4. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Waszczak-2015 was invoked but never defined (see the help page).
  10. ^ a b Cite error: The named reference Dymock-2009a was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Faure-2009 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference MPC-Alekhin was invoked but never defined (see the help page).