380 Fiducia (prov. designation: A894 AB or 1894 AR) is a dark and large asteroid, approximately 68 kilometers (42 miles) in diameter, located in the central region of the asteroid belt. It was discovered by French astronomer Auguste Charlois at the Nice Observatory on 8 January 1894. The carbonaceous C-type asteroid has a rotation period of 13.7 hours. It was named "Fiducia", the Latin word for confidence.[1]
_Fiducia.png) Modelled shape of Fiducia from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 8 January 1894 |
| Designations | |
| (380) Fiducia | |
| Pronunciation | /faɪˈdjuːʃ(i)ə, fɪ-/ |
Named after | confidence |
| 1894 AR | |
| Main belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 122.20 yr (44633 d) |
| Aphelion | 2.98476 AU (446.514 Gm) |
| Perihelion | 2.37017 AU (354.572 Gm) |
| 2.67747 AU (400.544 Gm) | |
| Eccentricity | 0.11477 |
| 4.38 yr (1600.2 d) | |
| 111.769° | |
| 0° 13m 29.878s / day | |
| Inclination | 6.15867° |
| 95.1146° | |
| 239.555° | |
| Physical characteristics | |
Mean diameter | 67.508±2.455 km |
| 13.69 h | |
| 0.0563±0.005 | |
| C | |
| 9.42 | |
References
External links
- Lightcurve plot of 380 Fiducia, Palmer Divide Observatory, B. D. Warner (2004)
- Lightcurve Database Query (LCDB), at www.minorplanet.info
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 380 Fiducia at AstDyS-2, Asteroids—Dynamic Site
- 380 Fiducia at the JPL Small-Body Database
