15 Eunomia

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15 Eunomia
A three-dimensional model of 15 Eunomia based on its licht curve.
Discovery
Discovered biAnnibale de Gasparis
Discovery dateJulie 29, 1851
Designations
Pronunciation/jʊˈnmiə/ ew-NOH-mee-ə
Named after
Eunomia
none
Main belt, (Eunomia family)
Orbital chairactereestics[1]
Epoch June 14, 2006 (JD 2453900.5)
Aphelion3.138 AU (469.429 Gm)
Perihelion2.149 AU (321.429 Gm)
2.643 AU (395.429 Gm)
Eccentricity0.187
4.30 a (1569.687 d)
18.16 km/s
286.102°
Inclination11.738°
293.273°
97.909°
Pheesical chairacteristics
Dimensions(357×255×212)±15 km[2]
268 km (mean)
330×245×205[3][4][5] 255.3 ± 15 km (IRAS)[1]
Mass3.12 ×1019 kg[2]
Mean density
3.09 ± 0.52 g/cm³[2]
3.8±0.7 g/cm³[6]
(based on IRAS diameter of 255km)
0.08 m/s²
0.16 km/s
0.2535 d (6.083 h)[1][7]
Albedo0.209 (geometric)[1]
Temperatur~166 K
max: 260 K (-13 °C)
Spectral teep
S-type asteroid[1]
7.9[8] to 11.24
5.28[1]
0.29" tae 0.085"

15 Eunomia is a very lairge asteroid in the inner asteroid belt.

References[eedit | eedit soorce]

  1. a b c d e f "JPL Small-Body Database Browser: 15 Eunomia". 8 Mey 2008. Retrieved 4 December 2008.
  2. a b c Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Archived frae the original on 21 October 2013. Retrieved 4 December 2008.
  3. Baer, James; Steven R. Chesley (2008). "Astrometric masses of 21 asteroids, and an integrated asteroid ephemeris" (PDF). Celestial Mechanics and Dynamical Astronomy. Springer Science+Business Media B.V. 2007. 100 (2008): 27–42. Bibcode:2008CeMDA.100...27B. doi:10.1007/s10569-007-9103-8. Archived frae the original (PDF) on 24 Februar 2011. Retrieved 11 November 2008.
  4. Nathues, A.; et al.; (2005); Spectral study of the Eunomia asteroid family - I. Eunomia Archived 2015-11-05 at the Wayback Machine, Icarus, Vol. 175, p. 452
  5. Tanga, P.; et al.; (2003); Asteroid observations with the Hubble Space Telescope; Astronomy & Astrophysics, Vol. 401, p. 733
  6. Vitagliano, Aldo; Reiner M. Stoss (2006). "New mass determination of (15) Eunomia based on a very close encounter with (50278) 2000CZ12". Astronomy and Astrophysics. 455 (3): L29–L31. Bibcode:2006A&A...455L..29V. doi:10.1051/0004-6361:20065760.
  7. "Planetary Data System (PDS) lightcurve data". Archived frae the original on 14 Juin 2006. Retrieved 7 November 2014.
  8. Donald H. Menzel and Jay M. Pasachoff (1983). A Field Guide to the Stars and Planets (2nd ed.). Boston, MA: Houghton Mifflin. pp. 391. ISBN 0-395-34835-8.