727 Nipponia

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727 Nipponia
Discovery
Discovered by S.Hirayama
Discovery site Heidelberg
Discovery date 11 February 1912
Designations
1912 NT
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc 102.89 yr (37582 d)
Aphelion 2.8378 AU (424.53 Gm)
Perihelion 2.2944 AU (343.24 Gm)
2.5661 AU (383.88 Gm)
Eccentricity 0.10588
4.11 yr (1501.5 d)
210.761°
0° 14m 23.172s / day
Inclination 15.060°
133.068°
274.978°
Earth MOID 1.3613 AU (203.65 Gm)
Jupiter MOID 2.50949 AU (375.414 Gm)
Jupiter Tisserand parameter 3.376
Physical characteristics
Mean radius
16.085±0.75 km
3.974 ± 0.001 h[2]
5.0687 h (0.21120 d)[1]
0.2423±0.025
9.6

727 Nipponia is a minor planet orbiting the Sun. It is a member of the Maria family of asteroids.[2]

Nipponia was originally discovered by Shin Hirayama in Tokyo on March 6, 1900. However, he was not able to determine its orbit. After it was rediscovered by A. Massinger on February 11, 1912, Massinger gave the honor of naming it to Hirayama, who chose the name Nipponia, from a Latinization of Nippon (Japan in Japanese).

References[edit]

  1. ^ a b "727 Nipponia (1912 NT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016. 
  2. ^ a b Alvarez-Candal, Alvaro; et al. (December 2004), "Rotational lightcurves of asteroids belonging to families", Icarus 172 (2): 388–401, Bibcode:2004Icar..172..388A, doi:10.1016/j.icarus.2004.06.008. 

External links[edit]