889 Erynia
From Wikipedia, the free encyclopedia
_Erynia.png) Modelled shape of Erynia from its lightcurve | |
| Discovery[1] | |
|---|---|
| Discovered by | M. F. Wolf |
| Discovery site | Heidelberg Obs. |
| Discovery date | 5 March 1918 |
| Designations | |
| (889) Erynia | |
| Pronunciation | /ɛˈraɪniə/ |
Named after | Erinyes, or Furies (Greek mythology)[2] |
| A918 EN · 1929 BG A912 PA · 1912 PA 1918 DG | |
| 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 |
| 2.4464 AU | |
| Eccentricity | 0.2029 |
| 3.83 yr (1,398 d) | |
| 342.62° | |
| 0° 15m 27.36s / day | |
| Inclination | 8.1064° |
| 132.53° | |
| 278.52° | |
| Physical characteristics | |
| 9.89±0.01 h[8] | |
Pole ecliptic latitude | |
| 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]
Erynia is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements.[4][5] It orbits the Sun in the inner asteroid belt at a distance of 2.0–2.9 AU once every 3 years and 10 months (1,398 days; semi-major axis of 2.45 AU). Its orbit has an eccentricity of 0.20 and an inclination of 8° with respect to the ecliptic.[3] The asteroid was first observed as A912 PA (1912 PA) at the Johannesburg Observatory on 7 August 1912. The body's observation arc begins at Heidelberg Observatory on 16 March 1918, or eleven nights after its official discovery observation.[1]
Naming
This minor planet was named after one of the Erinyes from Greek mythology, also known as Furies in Roman mythology. The female deities of vengeance have snakes for hair, dog's heads, coal black bodies, bat's wings, and blood-shot eyes. They tortured their victims with brass-studded scourges and inflicted plagues. The naming was mentioned in The Names of the Minor Planets by Paul Herget in 1955 (H 86).[2]
.png)
