29 Amphitrite

29 Amphitrite
VLT image of Amphitrite
Discovery [1]
Discovered byA. Marth
Discovery siteLondon
Discovery date1 March 1854
Designations
(29) Amphitrite
Pronunciation/æmfɪˈtraɪtiː/[2]
Named after
Amphitrite [3]
(Greek mythology)
A899 NG
main-belt [1][4] · (middle)
background [5][6]
AdjectivesAmphitritean /ˌæmfɪtrɪˈtiːən/, /ˌæmfɪˈtraɪtiən/
Symbol (historical)
Orbital characteristics [4]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc162.83 yr (59,472 d)
Aphelion2.7400 AU
Perihelion2.3712 AU
2.5556 AU
Eccentricity0.0722
4.09 yr (1,492 d)
187.97°
0° 14m 28.68s / day
Inclination6.0823°
356.37°
63.036°
Physical characteristics
Dimensions233 km × 212 km × 193 km[7]
204±2 km[8]
189.6±1.1 km[9]
196±22 km[10]
206.86 km[11]
212.22±6.8 km[12]
227.1±4.0 km[13]
Flattening0.18[a]
Mass(12.7±2.0)×1018 kg[8]
(11.8±?)×1018 kg[7]
Mean density
2.86±0.45 g/cm3[8]
2.36±0.26 g/cm3[7]
5.3921 h[14][6]
0.194[8]
0.157±0.035[13]
0.1793±0.012[12]
0.195[11]
0.216±0.043[9]
S [6]
5.85[1]
5.99[4]
6.0[5]

29 Amphitrite is one of the largest S-type asteroids, approximately 200 kilometers (120 miles) in diameter, and probably fifth largest after Eunomia, Juno, Iris and Herculina.

  1. ^ a b c Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  2. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  3. ^ Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b c Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ a b Cite error: The named reference AstDys-object was invoked but never defined (see the help page).
  6. ^ a b c Cite error: The named reference Ferret was invoked but never defined (see the help page).
  7. ^ a b c Cite error: The named reference Baer was invoked but never defined (see the help page).
  8. ^ a b c d e P. Vernazza et al. (2021) VLT/SPHERE imaging survey of the largest main-belt asteroids: Final results and synthesis. Astronomy & Astrophysics 54, A56
  9. ^ a b Cite error: The named reference Masiero-2014 was invoked but never defined (see the help page).
  10. ^ Cite error: The named reference Hanus-2013b was invoked but never defined (see the help page).
  11. ^ a b Cite error: The named reference AKARI was invoked but never defined (see the help page).
  12. ^ a b Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  13. ^ a b Cite error: The named reference WISE was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference lcdb was invoked but never defined (see the help page).


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