804 Hispania

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804 Hispania
Discovery
Discovered by J. Comas Solá
Discovery date March 20, 1915
Designations
Named after
Spain
1915 WT
Minor planet category Main belt
Orbital characteristics
Epoch 18 August 2005 (JD 2453600.5)
Aphelion 484.2 Gm (3.237 AU)
Perihelion 364.6 Gm (2.437 AU)
424.4 Gm (2.837 AU)
Eccentricity 0.141
1745 d (4.778 a)
17.60 km/s
175.732°
Inclination 15.380°
347.889°
342.525°
Physical characteristics
Dimensions 148.25 ± 4.08[1] km
Mass (5.00 ± 1.78) × 1018[1] kg
Mean density
2.93 ± 1.06[1] g/cm3
~0.107m/s2
~129.9m/s
7.405hr [1]
Albedo 0.0522
Temperature ~167.4K
Spectral type
P
7.84

804 Hispania is a minor planet orbiting the Sun. It was discovered from Barcelona (Spain) on 20 March 1915 by Josep Comas Solá (1868–1937), the first asteroid to be discovered by a Spaniard.

This is a C-type carbonaceous asteroid. Measurements made with adaptive optics at the W. M. Keck Observatory put the size of this object at 122 km. This is 30% smaller than the size estimated from the IRAS observatory data. It has a size ratio of 1.16 between its major and minor axes.[2]

References[edit]

  1. ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98-118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009.  See Table 1.
  2. ^ Marchis, F. et al. (November 2006), "Shape, size and multiplicity of main-belt asteroids. I. Keck Adaptive Optics survey", Icarus 185 (1): 39–63, Bibcode:2006Icar..185...39M, doi:10.1016/j.icarus.2006.06.001, PMC 2600456, PMID 19081813. 

External links[edit]