Astronomy:727 Nipponia
From HandWiki
| Discovery | |
|---|---|
| Discovered by | A. Massinger |
| Discovery site | Heidelberg |
| Discovery date | 11 February 1912 |
| Designations | |
| (727) Nipponia | |
| Pronunciation | /nɪˈpoʊniə/[1] |
| 1912 NT | |
| Orbital characteristics[2] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 102.89 yr (37582 d) |
| |{{{apsis}}}|helion}} | 2.8378 astronomical unit|AU (424.53 Gm) |
| |{{{apsis}}}|helion}} | 2.2944 AU (343.24 Gm) |
| 2.5661 AU (383.88 Gm) | |
| Eccentricity | 0.10588 |
| Orbital period | 4.11 yr (1501.5 d) |
| Mean anomaly | 210.761° |
| Mean motion | 0° 14m 23.172s / day |
| Inclination | 15.060° |
| Longitude of ascending node | 133.068° |
| 274.978° | |
| Physical characteristics | |
| Mean radius | 16.085±0.75 km |
| Rotation period | 3.974 ± 0.001 h[3] 5.0687 h (0.21120 d)[2] |
| Geometric albedo | 0.2423±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.[3]
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
- ↑ Nipponian (3rd ed.), Oxford University Press, September 2005, http://oed.com/search?searchType=dictionary&q=Nipponian (Subscription or UK public library membership required.)
- ↑ 2.0 2.1 "727 Nipponia (1912 NT)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=727;cad=1.
- ↑ 3.0 3.1 Alvarez-Candal, Alvaro et al. (December 2004), "Rotational lightcurves of asteroids belonging to families", Icarus 172 (2): 388–401, doi:10.1016/j.icarus.2004.06.008, Bibcode: 2004Icar..172..388A.
External links
- 727 Nipponia at AstDyS-2, Asteroids—Dynamic Site
- 727 Nipponia at the JPL Small-Body Database
 |  |
