19 Fortuna

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19 Fortuna 19 Fortuna symbol.svg
19Fortuna-LB1-crab-mag11.jpg
Fortuna centered abuin the Crab Nebula
Discovery
Discovered bi John Russell Hind
Discovery date August 22, 1852
Designations
Pronunciation /fɔːrˈtjnə/
Named after
Fortūna
A902 UG
Main belt
Orbital chairactereestics[1]
Epoch October 22, 2004 (JD 2453300.5)
Aphelion 2.831 AU (423.443 Gm)
Perihelion 2.052 AU (307.028 Gm)
2.441 AU (365.235 Gm)
Eccentricity 0.159
3.81 a (1393.378 d)
18.94 km/s
268.398°
Inclination 1.573°
211.379°
182.091°
Pheesical chairacteristics
Dimensions (225×205×195)±12 km[2]
225 km[3][4]
Mass 1.27×1019 kg[2]
Mean density
2.70±0.48 g/cm³[2]
~0.0629 m/s²
~0.1190 km/s
0.3101 d (7.4432 h)[1]
Albedo 0.037[1]
Temperatur ~180 K
Spectral teep
G[1]
8.88[5] tae 12.95
7.13[1]
0.25" tae 0.072"

19 Fortuna is ane o the lairgest main-belt asteroids.

References[eedit | eedit soorce]

  1. 1.0 1.1 1.2 1.3 1.4 "JPL Small-Body Database Browser: 19 Fortuna". 2008-08-21 last obs. Retrieved 2008-11-11.  Check date values in: |date= (help)
  2. 2.0 2.1 2.2 Jim Baer (2008). "Recent Asteroid Mass Determinations". Personal Website. Retrieved 2008-11-27. 
  3. Storrs, Alex; Weiss, B.; Zellner, B.; et al. (1998). "Imaging Observations of Asteroids with Hubble Space Telescope" (PDF). Icarus. 137 (2): 260–268. Bibcode:1999Icar..137..260S. doi:10.1006/icar.1999.6047. Retrieved 2005-01-15. 
  4. 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. Retrieved 2008-11-11. 
  5. "AstDys (19) Fortuna Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 2010-06-27.