13 Egeria
.png) A three-dimensional model o 13 Egeria based on its licht curve. | |
| Discovery | |
|---|---|
| Discovered bi | Annibale de Gasparis |
| Discovery date | November 2, 1850 |
| Designations | |
| Pronunciation | /ᵻˈdʒɪəriə/ i-JEER-ee-ə |
| none | |
| Main belt | |
| Orbital chairactereestics[1] | |
| Epoch July 14, 2004 (JD 2453200.5) | |
| Aphelion | 417.953 Gm (2.794 AU) |
| Perihelion | 352.719 Gm (2.358 AU) |
| 385.336 Gm (2.576 AU) | |
| Eccentricity | 0.085 |
| 1,509.977 d (4.13 a) | |
Average orbital speed | 18.56 km/s |
| 339.787° | |
| Inclination | 16.540° |
| 43.305° | |
| 81.401° | |
| Pheesical chairacteristics | |
| Dimensions | 214.8×192[2] [nae in citation given] 207.6 ± 8.3 km (IRAS)[1] |
| Mass | 1.63×1019 kg[3] |
Mean density | 3.46±0.79 g/cm³[3] |
| ≈0.0580 m/s² | |
| ≈0.1098 km/s | |
| 0.2935 d[4] (7.045 h)[1] | |
| Albedo | 0.083[1][5] |
| Temperatur | ~174 K |
Spectral teep | G-type asteroid[1] |
| 9.71 tae 12.46[6] | |
| 6.74[1] | |
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13 Egeria is a lairge main-belt G-type asteroid.[7]
References[eedit | eedit soorce]
- ↑ a b c d e f "JPL Small-Body Database Browser: 13 Egeria". 4 November 2008. Retrieved 25 November 2008.
- ↑ Timerson, Brad. "IOTA Asteroid Occultation Results for 2008". Retrieved 19 Januar 2010. (Chords) Archived 2014-04-16 at the Wayback Machine
- ↑ a b Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Archived frae the original on 21 October 2013. Retrieved 28 November 2008.
- ↑ "Lightcurves and map data on numbered asteroids N° 1 to 52225". AstroSurf. Archived frae the original on 27 November 2005. Retrieved 3 November 2008.Archived 2005-11-27 at the Wayback Machine
- ↑ "Asteroid Data Archive". Planetary Science Institute. Archived frae the original on 23 Juin 2006. Retrieved 3 November 2008.
- ↑ apmag 9.71 (2061-Nov-06) to 12.46 (1990-Mar-12) JPL Horizons daily output for 1950 to 2099
- ↑ Rivkin, A. S.; J. K. Davies, S. L. Ellison, L. A. Lebofsky. "High-resolution 2.5–3.5 M Observations of C-, B- and G-class asteroids" (PDF). Retrieved 20 Apryle 2008.CS1 maint: multiple names: authors leet (link)
