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727 Nipponia

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727 Nipponia
Discovery
Discovered byA. Massinger
Discovery siteHeidelberg
Discovery date11 February 1912
Designations
MPC designation(727) Nipponia
Pronunciation/nɪˈpoʊniə/
Alternative designations1912 NT
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc102.89 yr (37582 d)
Aphelion2.8378 AU (424.53 Gm)
Perihelion2.2944 AU (343.24 Gm)
Semi-major axis2.5661 AU (383.88 Gm)
Eccentricity0.10588
Orbital period (sidereal)4.11 yr (1501.5 d)
Mean anomaly210.761°
Mean motion0° 14 23.172 / day
Inclination15.060°
Longitude of ascending node133.068°
Argument of perihelion274.978°
Physical characteristics
Mean radius16.085±0.75 km
Synodic rotation period3.974 ± 0.001 h
5.0687 h (0.21120 d)
Geometric albedo0.2423±0.025
Absolute magnitude (H)9.6

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

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 Adam Massinger on February 11, 1912, Massinger gave the honor of naming it to Hirayama, who chose to name it from a latinization of "Nippon" (Japan in Japanese). Massinger, however, remains the officially credited discoverer of Nipponia.MPC

References

  1. "Nipponian". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  2. ^ "727 Nipponia (1912 NT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 5 May 2016.
  3. ^ 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

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