13 Egeria

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13 Egeria Astronomical seembol o 13 Egeria
13Egeria (Lightcurve Inversion).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 /ˈɪəriə/ 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)
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]

13 Egeria is a lairge main-belt G-type asteroid.[7]

References[eedit | eedit soorce]

  1. 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 13 Egeria". 2008-11-04 last obs. Retrieved 2008-11-25.  Check date values in: |date= (help)
  2. Timerson, Brad. "IOTA Asteroid Occultation Results for 2008". Retrieved 2010-01-19.  (Chords)
  3. 3.0 3.1 Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Retrieved 2008-11-28. 
  4. "Lightcurves and map data on numbered asteroids N° 1 to 52225". AstroSurf. Archived frae the oreeginal on 2005-11-27. Retrieved 2008-11-03. 
  5. "Asteroid Data Archive". Planetary Science Institute. Archived frae the oreeginal on 2006-06-23. Retrieved 2008-11-03. 
  6. apmag 9.71 (2061-Nov-06) to 12.46 (1990-Mar-12) JPL Horizons daily output for 1950 to 2099
  7. 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 2008-04-20.