68 Leto
 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 | |
| (68) Leto | |
| Pronunciation | /ˈlɛtoʊ/[1] |
Named after | Λητώ Lētō |
Minor planet category | Main belt |
| Adjectives | Letoian /liːˈtoʊ.iən/[2][3] |
| Orbital characteristics[4] | |
| 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) | |
| 48.7204° | |
| 0° 12m 45.025s / day | |
| Inclination | 7.97189° |
| 44.1270° | |
| 304.826° | |
| Physical characteristics | |
| Dimensions | 122.57±5.3 km[4] 124.96 ± 6.42 km[5] |
| Mass | (3.28 ± 1.90) × 1018 kg[5] |
Mean density | 3.21 ± 1.92 g/cm3[5] |
| 14.848 h (0.6187 d) | |
| 0.2283±0.021[4] 0.228[6] | |
| S | |
| 9.56 (brightest) | |
Absolute magnitude (H) | 6.78 |
Leto (minor planet designation: 68 Leto) is a large main belt asteroid that is orbiting the Sun with a period of 4.64 years. Its spectral type is S, suggesting a stony, silicate composition. The asteroid was discovered by German astronomer Robert Luther on April 29, 1861, and is named after Leto, the mother of Apollo and Artemis in Greek mythology. It has an estimated cross-sectional size of 123 km and a rotation period of 14.8 hours.
References[]
- ^ "Leto". Lexico UK Dictionary. Oxford University Press.
- ^ E. Alan Roberts (2013) The Courage of Innocence: (The Virgin of Phileros), p. 191
- ^ Greek Λητῷος – Lētōi-os. Liddell, Henry George; Scott, Robert; A Greek–English Lexicon at the Perseus Project
- ^ Jump up to: a b c "68 Leto". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 12 May 2016.
- ^ Jump up to: 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.
- ^ Asteroid Data Sets Archived 2010-01-17 at WebCite
External links[]
- 68 Leto at AstDyS-2, Asteroids—Dynamic Site
- 68 Leto at the JPL Small-Body Database
 | This article about an S-type asteroid native to the asteroid belt is a stub. You can help Wikipedia by . |
Categories:
- Minor planet object articles (numbered)
- Background asteroids
- Discoveries by Robert Luther
- Minor planets named from Greek mythology
- Named minor planets
- S-type asteroids (Tholen)
- Astronomical objects discovered in 1861
- S-type main-belt-asteroid stubs