Global Information889 Erynia information
 Modelled shape of Erynia from its lightcurve | |
| Discovery [1] | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 5 March 1918 |
| Designations | |
MPC designation | (889) Erynia |
| Pronunciation | /ɛˈraɪniə/ |
Named after | Erinyes, or Furies (Greek mythology)[2] |
Alternative designations | A918 EN · 1929 BG A912 PA · 1912 PA 1918 DG |
Minor planet category | main-belt [1][3] · (inner) background [4][5] |
| Orbital characteristics [3] | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 101.81 yr (37,187 d) |
| Aphelion | 2.9428 AU |
| Perihelion | 1.9500 AU |
Semi-major axis | 2.4464 AU |
| Eccentricity | 0.2029 |
Orbital period (sidereal) | 3.83 yr (1,398 d) |
Mean anomaly | 342.62° |
Mean motion | 0° 15m 27.36s / day |
| Inclination | 8.1064° |
Longitude of ascending node | 132.53° |
Argument of perihelion | 278.52° |
| Physical characteristics | |
Mean diameter |
|
Synodic rotation period | 9.89±0.01 h[8] |
Pole ecliptic latitude |
|
Geometric albedo |
|
Spectral type |
|
Absolute magnitude (H) | 11.0[1][3] |
889 Erynia /ɛˈraɪniə/ is a highly elongated background asteroid from the inner regions of the asteroid belt. It was discovered on 5 March 1918, by German astronomer Max Wolf at the Heidelberg-Königstuhl State Observatory, and given the provisional designations A918 EN and 1918 DG.[1] The stony S-type asteroid (Sl) has a rotation period of 9.89 hours and measures approximately 17 kilometers (11 miles) in diameter. It was named from Greek mythology, after the Erinyes, also known as Furies.[2]
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