4151 Alanhale

4151 Alanhale
Discovery [1]
Discovered byC. S. Shoemaker
E. M. Shoemaker
Discovery sitePalomar Obs.
Discovery date24 April 1985
Designations
(4151) Alanhale
Named after
Alan Hale (astronomer)[2]
1985 HV1 · 1968 HD
1976 SO1 · 1979 FX1
1982 SZ4 · 1985 JX
main-belt · Themis [3]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc48.95 yr (17,878 days)
Aphelion3.5904 AU
Perihelion2.7017 AU
3.1461 AU
Eccentricity0.1412
5.58 yr (2,038 days)
346.46°
0° 10m 35.76s / day
Inclination1.0079°
67.051°
75.088°
Physical characteristics
Dimensions15.37 km (calculated)[3]
19.526±0.269 km[4][5]
22.66±0.59 km[6]
11.9177±0.0047 h[7]
0.045±0.006[5][6]
0.0734±0.0099[4]
0.08 (assumed)[3]
C [3][8]
11.976±0.003 (R)[7] · 12.0[4] · 12.20[6] · 12.3[1] · 12.43[3] · 12.78±0.21[8]

4151 Alanhale, provisional designation 1985 HV1, is a carbonaceous Themistian asteroid from the outer region of the asteroid belt, approximately 19 kilometers in diameter. It was discovered by the American astronomer couple Carolyn and Eugene Shoemaker at the U.S. Palomar Observatory, California, on 24 April 1985.[9] It was named for American astronomer Alan Hale.[2]

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  2. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  3. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference WISE was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference Masiero-2011 was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  7. ^ a b Cite error: The named reference Waszczak-2016 was invoked but never defined (see the help page).
  8. ^ a b Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference MPC-Alanhale was invoked but never defined (see the help page).