1831 Nicholson

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1831 Nicholson
Discovery [1]
Discovered byP. Wild
Discovery siteZimmerwald Obs.
Discovery date17 April 1968
Designations
1831 Nicholson
Named after
Seth B. Nicholson[2]
1968 HC · 1948 GF
1955 ML
main-belt
Orbital characteristics[1]
Epoch 13 January 2016 (JD 2457400.5)
Uncertainty parameter 0
Observation arc60.14 yr (21967 days)
Aphelion2.5250 AU (377.73 Gm)
Perihelion1.9538 AU (292.28 Gm)
2.2394 AU (335.01 Gm)
Eccentricity0.12754
3.35 yr (1224.0 d)
43.680°
0° 17m 38.796s / day
Inclination5.6328°
72.613°
183.64°
Earth MOID0.937659 AU (140.2718 Gm)
Jupiter MOID2.50866 AU (375.290 Gm)
TJupiter3.619
Physical characteristics
3.228 h (0.1345 d)
SMASS = S
12.5

1831 Nicholson, provisional designation 1968 HC, is a stony asteroid from the asteroid belt discovered on April 17, 1968, by astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland. The S-type asteroid orbits the Sun at a distance of 2.0–2.5 AU once every 3 years and 4 months.[1]

It is named after American astronomer Seth B. Nicholson (1891–1963), who pioneered in several branches of planetary research at Mount Wilson Observatory and discovered the four Jupiter moons, Sinope, Lysithea, Carme, and Ananke.[2] The lunar and Martian crater Nicholson have also been named after him.

References

  1. ^ a b c "JPL Small-Body Database Browser: 1831 Nicholson (1968 HC)" (2015-08-14 last obs.). Jet Propulsion Laboratory. Retrieved 20 April 2016.
  2. ^ a b Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (1831) Nicholson. Springer Berlin Heidelberg. p. 147. ISBN 978-3-540-29925-7. Retrieved 22 August 2016.

External links