426 Hippo

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426 Hippo
Discovery
Discovered by Auguste Charlois
Discovery date August 25, 1897
Designations
Named after
Hippo Regius
1897 DH
Main belt
Orbital characteristics
Orbit of 426 Hippo.gif
Epoch November 4, 2013
Aphelion 3.1880 AU (476.92 Gm)
Perihelion 2.5906 AU (387.55 Gm)
2.8893 AU (432.23 Gm)
Eccentricity 0.1034
4.91 yr
17.53 km/s
47.4380°
Inclination 19.4779°
311.434°
221.982°
Proper orbital elements[1]
2.88928 AU
0.179526
20.3798°
73.2862 deg / yr
4.91225 yr
(1794.199 d)
Precession of perihelion
32.8357 arcsec / yr
Precession of the ascending node
−59.8571 arcsec / yr
Physical characteristics
Dimensions 127.1 km[2]
1.4292 Earth days
Albedo 0.0469[2]
Temperature 154-171 K
Spectral type
F
8.42[2]

426 Hippo is a rather large main-belt asteroid. It was discovered by Auguste Charlois on August 25, 1897, in Nice. In the 22nd century, it will come closer than 6,000,000 km (0.04 AU) to the larger asteroids 65 Cybele and 511 Davida.[2]

References[edit]

  1. ^ "AstDyS-2 (426) Hippo Synthetic Proper Orbital Elements". Department of Mathematics, University of Pisa, Italy. Retrieved 2014-02-09. 
  2. ^ a b c d "JPL Small-Body Database Browser: 426 Hippo (1897 DH)" (2013-06-21 last obs). Jet Propulsion Laboratory. Retrieved 2014-02-09.