1943 Anteros
1943 Anteros /ˈæntərɒs/, provisional designation 1973 EC, is a spheroidal, rare-type asteroid and near-Earth object of the Amor group, approximately 2 kilometers in diameter.
| Discovery | |
|---|---|
| Discovered by | J. B. Gibson |
| Discovery site | El Leoncito Complex |
| Discovery date | 13 March 1973 |
| Designations | |
MPC designation | (1943) Anteros |
| Pronunciation | /ˈæntərɒs/ |
Named after | Anteros (Greek mythology) |
Alternative designations | 1973 EC |
Minor planet category | Amor · NEO |
| Orbital characteristics | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 44.02 yr (16,080 days) |
| Aphelion | 1.7968 AU |
| Perihelion | 1.0642 AU |
Semi-major axis | 1.4305 AU |
| Eccentricity | 0.2561 |
Orbital period (sidereal) | 1.71 yr (625 days) |
Mean anomaly | 332.17° |
| Inclination | 8.7061° |
Longitude of ascending node | 246.33° |
| 338.37° | |
| Earth MOID | 0.0630 AU · 24.5 LD |
| Physical characteristics | |
| Dimensions | 2.01 km (derived) 2.38±0.72 km 2.39 km 2.43 km |
Synodic rotation period | 2.735±0.003 h 2.867±0.001 h 2.8695 h 2.9±0.1 h 3 h 6.5209±0.0022 h |
| 0.138±0.107 0.15 0.17 0.18 (assumed) | |
| S (Tholen) · L (SMASS) Sq · S · L B–V = 0.841 U–B = 0.444 | |
| 15.00 · 15.449±0.002 (R) · 15.75 · 15.8 · 15.82±0.14 · 15.89±0.14 · 15.9±0.2 · 15.96 · 16.01 · 16.35±0.48 | |
It was discovered on 13 March 1973, by American astronomer James Gibson at the Leoncito Astronomical Complex in Argentina, and named for the Greek god Anteros.
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