452 Hamiltonia

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452 Hamiltonia
Orbital characteristics 1
Orbit type Main belt
Semimajor axis 2.8464496 AU
Perihelion distance 2.8188874 AU
Aphelion distance 2.87401177 AU
Orbital period 4.8025 years (1754.0771 days)
Inclination 3.22715°
Eccentricity 0.009683
Discoverer James Edward Keeler, 1899

452 Hamiltonia is an asteroid. It was discovered by James Edward Keeler on December 6, 1899, but was then lost until 1987. Its provisional name was 1899 FD. The asteroid is named for Mount Hamilton, the site of Lick Observatory where Keeler was working when he discovered the asteroid.

L. K. Kristensen at Aarhus University rediscovered 452 Hamiltonia along with 1537 Transylvania along with numerous other small objects in 1981.[1] These rediscoveries left only nine numbered minor planets unobserved since their discoveries: 330 Adalberta, (473) Nolli, (719) Albert, (724) Hapag, (843) Nicolaia, (878) Mildred, (1009) Sirene, (1026) Ingrid, and (1179) Mally.[1] However, by the mid 1980s the only remaining lost asteroids of this group were (719) Albert (rediscovered in 2000), (724) Hapag (rediscovered in 1988), and (878) Mildred (rediscovered in 1991).[2]

[edit] External links

[edit] References

  1. ^ a b (1537) Transylvania and (452) Hamiltonia Kristensen, L. K.; Gibson, J.; Shao, C.-Y.; Bowell, E.; Marsden, B. G. IAU Circ., 3595, 1 (1981). Edited by Marsden, B. G. [1]
  2. ^ Cowen, Ron (2000-05-20). "Astronomers Rediscover Long-Lost Asteroid". 157. Science News. http://sciencenewsmagazine.org/view/generic/id/489/title/Astronomers_rediscover_long-lost_asteroid. 
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