14 Irene
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A three dimensional model of 14 Irene from light curve inversion
|
|
| Discovery | |
|---|---|
| Discovered by | John Russell Hind |
| Discovery date | May 19, 1851 |
| Designations | |
| MPC designation | (14) Irene |
| Pronunciation | /aɪˈriːniː/ eye-REE-nee |
|
Named after
|
Irēnē |
| A906 QC; A913 EA; 1952 TM |
|
| Main belt | |
| Orbital characteristics | |
| Epoch July 14, 2004 (JD 2453200.5) | |
| Aphelion | 451.858 Gm (3.020 AU) |
| Perihelion | 321.602 Gm (2.150 AU) |
| 386.730 Gm (2.585 AU) | |
| Eccentricity | 0.168 |
| 1518.176 d (4.16 a) | |
|
Average orbital speed
|
18.52 km/s |
| 326.489° | |
| Inclination | 9.106° |
| 86.493° | |
| 96.473° | |
| Physical characteristics | |
| Dimensions | 167×153×139km 152km (Dunham) |
| Mass | 8.2×1018 kg |
|
Mean density
|
4.42±1.59 g/cm³ |
| 0.051 m/s² | |
| 0.096 km/s | |
| 0.6275 d (15.06 h) | |
| Albedo | 0.159 |
| Temperature | ~170 K |
|
Spectral type
|
S-type asteroid |
| 8.85 to 12.30 | |
| 6.30 | |
| 0.17" to 0.052" | |
14 Irene is a large main-belt asteroid, discovered by John Russell Hind on May 19, 1851.
14 Irene was named after Irēnē, a personification of peace in Greek mythology. She was one of the Horae, daughter of Zeus and Themis. The name was suggested by Sir John Herschel. Hind wrote,
The Great Exhibition of the Works of Industry of All Nations in the Crystal Palace of Hyde Park, London, ran from May 1 until October 18, 1851.
Hind suggested that the symbol for the asteroid should be "A dove carrying an olive-branch, with a star on its head", but an actual drawing of the symbol was never made before the use of graphical symbols to represent asteroids was dropped entirely.
The fairly flat Irenian lightcurves indicate somewhat spherical proportions. There have been four reported stellar occultation events by Irene.
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Wikipedia