14 Irene
main-belt asteroid
14 Irene is a very big Main belt asteroid.
| Discovery | |
|---|---|
| Discovered by | John Russell Hind |
| Discovery date | May 19, 1851 |
| Designations | |
| 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 | 181.8 km [1] |
| Mass | 6.3×1018 kg [reference needed] |
Mean density | 2 ? g/cm³ |
| 0.051 m/s² | |
| 0.096 km/s | |
| 0.6275 d[2] | |
| Albedo | 0.160[1] |
| Temperature | ~170 K |
Spectral type | S-type asteroid [1] |
| 8.84 to 12.25 | |
| 6.30 | |
| 0.17" to 0.052" | |
14 Irene was found by J. R. Hind on May 19, 1851, and named after Eirene, 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,
- "You will readily discover that this name [...] has some relation to this event (the Great Industrial Exhibition) which is now filling our metropolis [London] with the talent of all civilised nations, with those of Peace, the productions of Art and Science, in which all mankind must feel an interest."
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",[3] but an actual drawing of the symbol was never made before the use of graphical symbols to represent asteroids was no longer used.[4]
There have been four reported stellar occultations by Irene.
References
change- ↑ 1.0 1.1 1.2 "Asteroid Lightcurve Data File". Archived from the original on 2010-01-17. Retrieved 2007-12-18.
{{cite web}}: CS1 maint: bot: original URL status unknown (link) - ↑ "Asteroid Lightcurve Parameters". Archived from the original on 2006-06-14. Retrieved 2007-12-18.
{{cite web}}: CS1 maint: bot: original URL status unknown (link) - ↑ Hind, John Russell (1852). "From a Letter of Mr. Hind to the Editor". Astron. J. 2: 22–23. doi:10.1086/100162.
- ↑ "When did the asteroids become minor planets?". Archived from the original on 2010-01-18. Retrieved 2007-12-18.
{{cite web}}: CS1 maint: bot: original URL status unknown (link)
- Gould, B.A., New planet, Astronomical Journal, Vol. 2, iss. 27, p. 22, June 1851
Other websites
change- Orbital simulation from JPL (Java) / Ephemeris
