727 Nipponia
| Discovery | |
|---|---|
| Discovered by | A. Massinger |
| Discovery site | Heidelberg |
| Discovery date | 11 February 1912 |
| Designations | |
| MPC designation | (727) Nipponia |
| 1912 NT | |
| Orbital characteristics | |
| 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 5.0687 h (0.21120 d) |
|
| 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.
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
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