2759 Idomeneus
| Discovery | |
|---|---|
| Discovered by | Edward L. G. Bowell |
| Discovery date | 14 April 1980 |
| Designations | |
Named after | Idomeneus |
| 1980 GC | |
| Jupiter Trojan | |
| Orbital characteristics[1][2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 60.91 yr (22247 days) |
| Aphelion | 5.52653 AU (826.757 Gm) |
| Perihelion | 4.83641 AU (723.517 Gm) |
| 5.18147 AU (775.137 Gm) | |
| Eccentricity | 0.066595 |
| 11.79 yr (4308.02 d) | |
Average orbital speed | 13.08 km/s |
| 51.0132° | |
| 0° 5m 0.834s / day | |
| Inclination | 21.9518° |
| 171.231° | |
| 8.49737° | |
| Earth MOID | 3.84215 AU (574.777 Gm) |
| Jupiter MOID | 0.553108 AU (82.7438 Gm) |
| Jupiter Tisserand parameter | 2.851 |
| Physical characteristics | |
| Dimensions | 61.0 km |
Mean radius | 30.505 ± 2.65 km |
| Mass | 2.4×1017 kg |
Mean density | 2.0 g/cm³ |
Equatorial surface gravity | 0.0170 m/s² |
Equatorial escape velocity | 0.0322 km/s |
| 32.4 h (1.35 d) | |
| 0.0571 ± 0.011 | |
| Temperature | ~122 K |
| 10.0 | |
|
| |
2759 Idomeneus 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 Idomeneus, who fought during the Trojan War. It was discovered by Edward L. G. Bowell at the Anderson Mesa station of the Lowell Observatory on April 14, 1980.
Photometric observations of this asteroid during 1994 were used to build a light curve showing a rotation period of 32.38 ± 0.06 hours with a brightness variation of 0.27 ± 0.01 magnitude.[3]
References
- ↑ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory.
- ↑ "2759 Idomeneus (1980 GC)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 15 April 2016.
- ↑ Mottola, Stefano; Di Martino, Mario; Erikson, Anders; Gonano-Beurer, Maria; Carbognani, Albino; Carsenty, Uri; Hahn, Gerhard; Schober, Hans-Josef; Lahulla, Felix; Delbò, Marco; Lagerkvist, Claes-Ingvar (May 2011). "Rotational Properties of Jupiter Trojans. I. Light Curves of 80 Objects". The Astronomical Journal. 141 (5): 170. Bibcode:2011AJ....141..170M. doi:10.1088/0004-6256/141/5/170.
External links
- Discovery Circumstances: Numbered Minor Planets
- Orbital simulation from JPL (Java) / Ephemeris
- 2759 Idomeneus at the JPL Small-Body Database
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