1172 Äneas
| Discovery[1] | |
|---|---|
| Discovered by | Karl Wilhelm Reinmuth |
| Discovery date | 17 October 1930 |
| Designations | |
|
Named after
|
Aeneas |
| 1930 UA | |
| Jupiter Trojan[1] | |
| Orbital characteristics[1] | |
| Epoch 2012-Mar-14 | |
| Aphelion | 5.7585 AU (Q) |
| Perihelion | 4.6552 AU (q) |
| 5.2069 AU (a) | |
| Eccentricity | 0.10595 |
| 11.88 yr | |
| 56.053° (M) | |
| Inclination | 16.674° |
| 247.33° | |
| 50.705° | |
| Physical characteristics | |
| Dimensions | 143 km (IRAS)[1] |
| 8.7 hr[1] | |
| Albedo | 0.04[1] |
| 14.65 to 16.73 | |
| 8.33[1] | |
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1172 Äneas is a large 143 km Jupiter Trojan. It was discovered by Karl Wilhelm Reinmuth at the Landessternwarte Heidelberg-Königstuhl in Heidelberg, Germany, on October 17, 1930.[1] Its provisional designation was 1930 UA. It is named after Aeneas, a mythological Trojan prince.
Based on IRAS data, Äneas is 143 km in diameter and is the 4th largest Jupiter Trojan.[2]
| Trojan | Diameter (km) |
|---|---|
| 624 Hektor | 225 |
| 911 Agamemnon | 167 |
| 1437 Diomedes | 164 |
| 1172 Äneas | 143 |
| 617 Patroclus | 141 |
| 588 Achilles | 135 |
| 1173 Anchises | 126 |
| 1143 Odysseus | 126 |
| Source: JPL Small-Body Database, IRAS data | |
Photometric observations of this asteroid during 1993 were used to build a light curve showing a rotation period of 8.708 ± 0.009 hours with a brightness variation of 0.27 ± 0.01 magnitude.[3]
References
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- Orbital simulation from JPL (Java) / Ephemeris
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