2759 Idomeneus

2759 Idomeneus

Discovery
Discovered by	Edward L. G. Bowell
Discovery date	14 April 1980
Designations
Named after	Idomeneus
Alternative names	1980 GC
Minor planet category	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)
Semi-major axis	5.18147 AU (775.137 Gm)
Eccentricity	0.066595
Orbital period	11.79 yr (4308.02 d)
Average orbital speed	13.08 km/s
Mean anomaly	51.0132°
Mean motion	0° 5^m 0.834^s / day
Inclination	21.9518°
Longitude of ascending node	171.231°
Argument of perihelion	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	2.4×10^17 kg
Mean density	2.0 g/cm³
Equatorial surface gravity	0.0170 m/s²
Equatorial escape velocity	0.0322 km/s
Rotation period	32.4 h (1.35 d)
Geometric albedo	0.0571 ± 0.011
Temperature	~122 K
Absolute magnitude (H)	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

1. "The Asteroid Orbital Elements Database". astorb. Lowell Observatory.
2. "2759 Idomeneus (1980 GC)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 15 April 2016.
3. 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
  
  • Discovery · Orbit diagram · Orbital elements · Physical parameters