173 Ino

173 Ino
Discovery[1]
Discovered byA. Borrelly
Discovery siteMarseille
Discovery date1 August 1877
Designations
(173) Ino
Pronunciation/ˈaɪnoʊ/ EYE-noh[2]
Named after
Ἰνώ Īnṓ[3] (Greek mythology)
A877 PA; 1922 SB
main-belt[1][4] · (middle)
Ino[5]
AdjectivesInoan (/aɪˈnoʊən/ eye-NOH-ən)[6]
Orbital characteristics[4]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc138.75 yr (50,678 d)
Aphelion3.3142 AU
Perihelion2.1708 AU
2.7425 AU
Eccentricity0.2085
4.54 yr (1,659 d)
307.27°
0° 13m 1.2s / day
Inclination14.197°
148.18°
228.89°
Physical characteristics
Dimensionsc/a = 0.76±0.06[7]
145±3 km[7]
119±27 km[8]
125.8±1.5 km[9]
148±42 km[10]
154.1±3.5 km[11]
160.6 km[12]
Mass(2.2±1.3)×1018 kg[7]
(4.79±3.11)×1018 kg[13]
Mean density
1.4±0.8 g/cm3[7]
2.23±1.47 g/cm3[13]
5.93 h[14]
6.1±0.2 h[15]
6.106±0.001 h[15]
6.1088±0.0007 h[15]
6.11 h[16]
6.113±0.002 h[17]
6.11651 h[18]
6.15 h[19]
6.163 h[20]
0.061 (calculated)[7]
0.059[12]
0.06±0.02[10]
0.0642±0.003[11]
0.07±0.05[8]
0.096±0.018[9]
Tholen = C[4]
SMASS = Xk[4]
B–V = 0.705[4]
U–B = 0.305[4]
7.66[4][9][10][11][12][21]
7.80±0.05[22]
7.90[8][23]

173 Ino is a large asteroid and the parent body of the Ino family, located in the central regions of the asteroid belt, approximately 150 kilometers (93 miles) in diameter. It was discovered on 1 August 1877, by French astronomer Alphonse Borrelly at Marseille Observatory in southern France, and named after the queen Ino from Greek mythology.[1][3] The dark Xk-type asteroid has a rotation period of 6.15 hours.[21]

  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. ^ a b Cite error: The named reference springer was invoked but never defined (see the help page).
  4. ^ a b c d e f g Cite error: The named reference jpldata was invoked but never defined (see the help page).
  5. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  6. ^ George Stuart (1882) The Eclogues, Georgics, and Moretum of Virgil, p. 271
  7. ^ 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
  8. ^ a b c Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).
  9. ^ a b c Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference Nugent-2015 was invoked but never defined (see the help page).
  11. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  12. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  13. ^ a b Cite error: The named reference Carry-2012 was invoked but never defined (see the help page).
  14. ^ Cite error: The named reference Schober-1978b was invoked but never defined (see the help page).
  15. ^ a b c Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  16. ^ Cite error: The named reference Erikson-1990 was invoked but never defined (see the help page).
  17. ^ Cite error: The named reference Gandolfi-2009 was invoked but never defined (see the help page).
  18. ^ Cite error: The named reference Michalowski-2005 was invoked but never defined (see the help page).
  19. ^ Cite error: The named reference Debehogne-1990 was invoked but never defined (see the help page).
  20. ^ Cite error: The named reference Michalowski-1993 was invoked but never defined (see the help page).
  21. ^ a b Cite error: The named reference lcdb was invoked but never defined (see the help page).
  22. ^ Cite error: The named reference Warner-2007i was invoked but never defined (see the help page).
  23. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).