.png) A three dimensional model o 14 Irene frae licht curve inversion | |
| Discovery | |
|---|---|
| Discovered bi | John Russell Hind |
| Discovery date | May 19, 1851 |
| Designations | |
| Pronunciation | /aɪˈriːniː/ eye-REE-nee |
Named after | Irēnē |
Alternative names | A906 QC; A913 EA; 1952 TM |
Minor planet category | Main belt |
| Orbital chairactereestics[1] | |
| 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 |
Orbital period | 1518.176 d (4.16 a) |
Average orbital speed | 18.52 km/s |
Mean anomaly | 326.489° |
| Inclination | 9.106° |
Longitude o ascendin node | 86.493° |
Argument o perihelion | 96.473° |
| Pheesical chairacteristics | |
| Dimensions | 167x153x139km[2] 152km (Dunham)[1] |
| Mass | 8.2×1018 kg[2] |
Mean density | 4.42±1.59 g/cm³[2] |
Surface gravity | 0.051 m/s² |
Escape velocity | 0.096 km/s |
| 0.6275 d (15.06 h)[1][3] | |
| Albedo | 0.159[1] |
| Temperatur | ~170 K |
Spectral teep | S-type asteroid[1] |
Apparent magnitude | 8.85[4] to 12.30 |
| 6.30[1] | |
Angular diameter | 0.17" tae 0.052" |
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14 Irene is a lairge main-belt asteroid, discovered bi John Russell Hind on Mey 19, 1851.
References
[eedit | eedit soorce]- ↑ a b c d e f "JPL Small-Body Database Browser: 14 Irene". 14 Apryle 2008. Retrieved 27 November 2008.
- ↑ a b c Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Archived frae the original on 21 October 2013. Retrieved 27 November 2008.
- ↑ "Asteroid Lightcurve Parameters". Planetary Science Institute. Archived frae the original on 14 Juin 2006. Retrieved 3 November 2008.
- ↑ "AstDys (14) Irene Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 26 Juin 2010.