1123 Shapleya

1123 Shapleya
Discovery[1]
Discovered byG. Neujmin
Discovery siteSimeiz Obs.
Discovery date21 September 1928
Designations
(1123) Shapleya
Named after
Harlow Shapley
(American astronomer)[2]
1928 ST · 1974 QQ2
2016 FJ6
main-belt · Flora[3]
Orbital characteristics[1]
Epoch 16 February 2017 (JD 2457800.5)
Uncertainty parameter 0
Observation arc87.81 yr (32,073 days)
Aphelion2.5741 AU
Perihelion1.8758 AU
2.2250 AU
Eccentricity0.1569
3.32 yr (1,212 days)
207.68°
0° 17m 49.2s / day
Inclination6.4212°
79.889°
317.60°
Physical characteristics
Dimensions10.93±2.29 km[4]
11.282±0.136 km[5]
12.003±0.092 km[6]
12.08 km (taken)[3]
12.084 km[7]
12.32±0.84 km[8]
20 h (dated)[9]
24 h (dated)[10]
52.92±0.01 h[11]
0.2600±0.0630[6]
0.274±0.044[8]
0.278±0.037[5]
0.2797[7]
0.36±0.19[4]
S[3]
11.55±0.29[12] · 11.59±0.13[3][7][9] · 11.60[4] · 11.7[1][6][8]

1123 Shapleya, provisional designation 1928 ST, is a stony Florian asteroid from the inner regions of the asteroid belt, approximately 11 kilometers in diameter. It was discovered on 21 September 1928, by Russian astronomer Grigory Neujmin at Simeiz Observatory on the Crimean peninsula.[13] It was named after American astronomer Harlow Shapley.[2]

  1. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b c d Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Pravec-2012b was invoked but never defined (see the help page).
  8. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  9. ^ a b Cite error: The named reference Wisniewski-1997 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  11. ^ Cite error: The named reference Stephens-2012c was invoked but never defined (see the help page).
  12. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  13. ^ Cite error: The named reference MPC-Shapleya was invoked but never defined (see the help page).