357 Ninina
 Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 11 February 1893 |
| Designations | |
| (357) Ninina | |
| 1893 J | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 108.56 yr (39650 d) |
| Aphelion | 3.38973 AU (507.096 Gm) |
| Perihelion | 2.92272 AU (437.233 Gm) |
| 3.15623 AU (472.165 Gm) | |
| Eccentricity | 0.073982 |
| 5.61 yr (2,048.1 d) | |
| 144.322° | |
| 0° 10m 32.783s / day | |
| Inclination | 15.0642° |
| 137.809° | |
| 254.250° | |
| Physical characteristics | |
| Dimensions | 106.10±2.2 km |
| 36.0105 h (1.50044 d) | |
| 0.0510±0.002 | |
| 8.72 | |
Ninina (minor planet designation: 357 Ninina) is a large main-belt asteroid.[1] It was discovered by Auguste Charlois on February 11, 1893, in Nice. The reference of its name is not known, though Ninine is a French personal name.[2] This minor planet is orbiting at a distance of 3.16 AU from the Sun with a period of 5.61 years and an orbital eccentricity (ovalness) of 0.074. The orbital plane is inclined at an angle of 15.1° to the plane of the ecliptic.[1]
Photometric observations of 357 Ninina during 2023 provided a light curve that presents an Earth commensurate rotation period of 36.00±0.01 h with a brightness amplitude of 0.08±0.01 in magnitude.[3] In 2024, spin shape modelling using the light curve inversion technique show a blocky, rounded figure, with a refined rotation period of 35.9840±0.0005 h[4]
References[edit]
- ^ a b c "357 Ninina (1893 J)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 21 June 2024.
- ^ Schmadel, Lutz D. (2013). Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 68. ISBN 9783662066157.
- ^ Pilcher, Frederick; et al. (October 2023). "A New Lightcurve of 357 Ninina". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 50 (4): 255–256. Bibcode:2023MPBu...50..255P.
- ^ Franco, Lorenzo; et al. (April 2024). "Spin-Shape Model for 357 Ninnina". Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers. 51 (2): 100–102. Bibcode:2024MPBu...51..100F.
External links[edit]
- 357 Ninina at AstDyS-2, Asteroids—Dynamic Site
- 357 Ninina at the JPL Small-Body Database
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