Astronomy:312 Pierretta
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Short description: Main-belt asteroid
.png) A three-dimensional model of 312 Pierretta based on its light curve | |
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery site | Nice Observatory |
| Discovery date | 28 August 1891 |
| Designations | |
| (312) Pierretta | |
| Pronunciation | /piəˈrɛtə/[1] |
| A891 QA | |
| Minor planet category | Main belt |
| Orbital characteristics[2] | |
| Epoch 31 May 2020 (JD 2459000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 128.66 yr (46994 d) |
| |{{{apsis}}}|helion}} | 3.227 astronomical unit|AU (482.8 Gm) |
| |{{{apsis}}}|helion}} | 2.338 AU (349.8 Gm) |
| 2.782 AU (416.2 Gm) | |
| Eccentricity | 0.15982 |
| Orbital period | 4.64 yr (1695.1 d) |
| Mean anomaly | 339.6932° |
| Mean motion | 0° 12m 44.554s / day |
| Inclination | 9.029344° |
| Longitude of ascending node | 6.25477° |
| 262.764° | |
| Physical characteristics | |
| Dimensions | 49.96±1.5 km |
| Rotation period | 10.282 h (0.4284 d) |
| Geometric albedo | 0.1967±0.013 |
| S/Sk | |
| Absolute magnitude (H) | 8.89 |
Pierretta (minor planet designation: 312 Pierretta) (A891 QA) is a 46 km main-belt asteroid discovered on 28 Aug 1891 by Auguste Charlois at Nice.[2]
References
External links
- 312 Pierretta at AstDyS-2, Asteroids—Dynamic Site
- 312 Pierretta at the JPL Small-Body Database
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