3548 Eurybates
| Discovery | |
|---|---|
| Discovered by | Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels |
| Discovery date | 19 September 1973 |
| Designations | |
| Pronunciation | /jʊərᵻˈbeɪtiːz/ |
Named after | Eurybates |
| 1973 SO | |
| Jupiter Trojan | |
| Orbital characteristics[1][2] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 22457 days (61.48 yr) |
| Aphelion | 5.65123 AU (845.412 Gm) |
| Perihelion | 4.72534 AU (706.901 Gm) |
| 5.18828 AU (776.156 Gm) | |
| Eccentricity | 0.089229 |
| 11.82 yr (4316.52 d) | |
Average orbital speed | 13.08 km/s |
| 170.261° | |
| 0° 5m 0.242s / day | |
| Inclination | 8.06351° |
| 43.5670° | |
| 28.1237° | |
| Earth MOID | 3.74152 AU (559.723 Gm) |
| Jupiter MOID | 0.0895387 AU (13.39480 Gm) |
| Jupiter Tisserand parameter | 2.972 |
| Physical characteristics | |
| Dimensions | 72.2 km |
Mean radius | 36.07 ± 2.05 km |
| Mass | 3.9×1017 kg |
Mean density | 2.0 g/cm³ |
Equatorial surface gravity | 0.0202 m/s² |
Equatorial escape velocity | 0.0382 km/s |
| 8.711 h (0.3630 d) | |
| 0.0538 ± 0.007 | |
| Temperature | ~122 K |
| 9.7 | |
|
| |
3548 Eurybates 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 Eurybates, who was a herald for the Greek armies during the Trojan War. It was discovered by Cornelis Johannes van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels on September 19, 1973 in Palomar, California at the Palomar Observatory.
Photometric observations of this asteroid during 1992 were used to build a light curve showing a rotation period of 8.711 ± 0.009 hours with a brightness variation of 0.20 ± 0.01 magnitude.[3]
References
- ↑ "The Asteroid Orbital Elements Database". astorb. Lowell Observatory.
- ↑ "3548 Eurybates (1973 SO)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 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
- 3548 Eurybates at the JPL Small-Body Database
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