68 Leto

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68 Leto
68Leto (Lightcurve Inversion).png
A three-dimensional model of 68 Leto based on its light curve.
Discovery
Discovered by Karl Theodor Robert Luther
Discovery date 29 April 1861
Designations
Named after
Leto
 
Main belt
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 152.08 yr (55548 d)
Aphelion 3.30153 AU (493.902 Gm)
Perihelion 2.26072 AU (338.199 Gm)
2.78112 AU (416.050 Gm)
Eccentricity 0.18712
4.64 yr (1694.1 d)
17.70 km/s
48.7204°
0° 12m 45.025s / day
Inclination 7.97189°
44.1270°
304.826°
Earth MOID 1.26556 AU (189.325 Gm)
Jupiter MOID 2.16133 AU (323.330 Gm)
Jupiter Tisserand parameter 3.293
Physical characteristics
Dimensions 122.57±5.3 km[1]
124.96 ± 6.42 km[2]
Mass (3.28 ± 1.90) × 1018 kg[2]
Mean density
3.21 ± 1.92 g/cm3[2]
Equatorial surface gravity
0.0343 m/s²
Equatorial escape velocity
0.0648 km/s
14.848 h (0.6187 d)
0.2283±0.021[1]
0.228 (geometric)[3]
Temperature ~167 K
S
9.56 (brightest)
6.78

68 Leto (/ˈlt/ LEE-toh; Greek: Λητώ) is a large main belt asteroid. Its spectral type is S. It was discovered by Robert Luther on April 29, 1861. The asteroid is named after Leto, the mother of Apollo and Artemis in Greek mythology.

References[edit]

  1. ^ a b c "68 Leto". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016. 
  2. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  3. ^ Asteroid Data Sets

External links[edit]