143 Adria
Main-belt asteroid
From Wikipedia, the free encyclopedia
143 Adria is a fairly large main-belt asteroid that was discovered by Austrian astronomer Johann Palisa on 23 February 1875, at the Austrian Naval Observatory, and named after the Adriatic Sea, on the coast of which the discovery was made. This dark-coloured asteroid has probably a primitive carbonaceous chondritic composition.
Orbital diagram | |
| Discovery[1] | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Austrian Naval Obs. |
| Discovery date | 23 February 1875 |
| Designations | |
| (143) Adria | |
| Pronunciation | /ËeɪdriÉ/[2] |
Named after | Adriatic Sea |
| A875 DA; 1960 WK1 | |
| main-belt[1][3] · (middle) background[4] | |
| Orbital characteristics[3] | |
| Epoch 23 March 2018 (JD 2458200.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 138.03 yr (50,415 d) |
| Aphelion | 2.9688 AU |
| Perihelion | 2.5557 AU |
| 2.7622 AU | |
| Eccentricity | 0.0748 |
| 4.59 yr (1,677 d) | |
| 354.65° | |
| 0° 12m 52.92s / day | |
| Inclination | 11.442° |
| 333.04° | |
| 252.89° | |
| Physical characteristics | |
| 89.93±1.9 km | |
| Mass | 7.6Ã1017 kg |
| 22.005 h (0.9169 d)[3][5] | |
| 0.0491±0.002 | |
| C | |
| 9.12 | |
One occultation by Adria has been reported so far, from Japan on August 21, 2000. A somewhat spherical shape measuring 98 Ã 86 km was observed.
Photometric observations of this asteroid made during 2008 at the Organ Mesa Observatory in Las Cruces, New Mexico gave an irregular light curve with a period of 22.005 ± 0.001 hours and a brightness variation of 0.08 ± 0.01 in magnitude.[5]
