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 biAnnibale de Gasparis
Discovery dateNovember 2, 1850
Designations
Pronunciation/ˈɪəriə/ i-JEER-ee-ə
none
Main belt
Orbital chairactereestics[1]
Epoch July 14, 2004 (JD 2453200.5)
Aphelion417.953 Gm (2.794 AU)
Perihelion352.719 Gm (2.358 AU)
385.336 Gm (2.576 AU)
Eccentricity0.085
1,509.977 d (4.13 a)
18.56 km/s
339.787°
Inclination16.540°
43.305°
81.401°
Pheesical chairacteristics
Dimensions214.8×192[2][nae in citation given]
207.6 ± 8.3 km (IRAS)[1]
Mass1.63×1019 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]
Albedo0.083[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 19 Januar 2010. (Chords)
  3. 3.0 3.1 Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Retrieved 28 November 2008.
  4. "Lightcurves and map data on numbered asteroids N° 1 to 52225". AstroSurf. Archived frae the original on 27 November 2005. Retrieved 3 November 2008.
  5. "Asteroid Data Archive". Planetary Science Institute. Archived frae the original on 23 Juin 2006. Retrieved 3 November 2008.
  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 20 Apryle 2008.CS1 maint: multiple names: authors leet (link)