3391 Sinon
From Infogalactic: the planetary knowledge core
Discovery[1] | |
---|---|
Discovered by | Hiroki Kosai and Kiichiro Hurukawa |
Discovery date | 18 February 1977 |
Designations | |
Named after
|
Sinon |
1977 DD3 | |
Jupiter Trojan | |
Orbital characteristics[1][2] | |
Epoch 13 January 2016 (JD 2457400.5) | |
Uncertainty parameter 0 | |
Observation arc | 21977 days (60.17 yr) |
Aphelion | 5.73907 AU (858.553 Gm) |
Perihelion | 4.86540 AU (727.853 Gm) |
5.30224 AU (793.204 Gm) | |
Eccentricity | 0.082387 |
12.21 yr (4459.51 d) | |
Average orbital speed
|
12.92 km/s |
135.426° | |
Inclination | 14.8699° |
341.136° | |
103.544° | |
Earth MOID | 3.91963 AU (586.368 Gm) |
Jupiter MOID | 0.259194 AU (38.7749 Gm) |
Physical characteristics | |
Dimensions | ? km |
Mass | ?×10? kg |
Mean density
|
? g/cm³ |
Equatorial surface gravity
|
? m/s² |
Equatorial escape velocity
|
? km/s |
8.135 h (0.3390 d) | |
Sidereal rotation period
|
? d |
?° | |
Pole ecliptic latitude
|
? |
Pole ecliptic longitude
|
? |
0.10 | |
Temperature | ~121 K |
? | |
10.3 | |
3391 Sinon is a Jupiter Trojan asteroid that orbits in the L4 Lagrangian point of the Sun-Jupiter system, in the "Greek Camp" of Trojan asteroids. It was named after the Greek hero Sinon, who was a warrior during the Trojan War. It was discovered by Hiroki Kosai and Kiichiro Hurukawa at the Kiso Observatory in Japan on February 18, 1977.
References
External links
- Discovery Circumstances: Numbered Minor Planets
- Orbital simulation from JPL (Java) / Ephemeris
- 3391 Sinon at the JPL Small-Body Database