 Orbital diagram | |
| Discovery | |
|---|---|
| Discovered by | J. Palisa |
| Discovery site | Austrian Naval Obs. |
| Discovery date | 23 February 1875 |
| Designations | |
| MPC designation | (143) Adria |
| Pronunciation | /ˈeɪdriə/ |
| Named after | Adriatic Sea |
| Alternative designations | A875 DA; 1960 WK1 |
| Minor planet category | main-belt · (middle) background |
| Orbital characteristics | |
| 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 |
| Semi-major axis | 2.7622 AU |
| Eccentricity | 0.0748 |
| Orbital period (sidereal) | 4.59 yr (1,677 d) |
| Mean anomaly | 354.65° |
| Mean motion | 0° 12 52.92 / day |
| Inclination | 11.442° |
| Longitude of ascending node | 333.04° |
| Argument of perihelion | 252.89° |
| Physical characteristics | |
| Mean diameter | 89.93±1.9 km |
| Mass | 7.6×10 kg |
| Synodic rotation period | 22.005 h (0.9169 d) |
| Geometric albedo | 0.0491±0.002 |
| Spectral type | C |
| Absolute magnitude (H) | 9.12 |
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.
One occultation by Adria has been reported so far, from Japan on August 21, 2000. A somewhat spherical shape measuring 98 × 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.
References
- ^ "143 Adria". Minor Planet Center. Retrieved 29 May 2018.
- Noah Webster (1884) A Practical Dictionary of the English Language
- ^ "JPL Small-Body Database Browser: 143 Adria" (2018-04-25 last obs.). Jet Propulsion Laboratory. Retrieved 29 May 2018.
- "Asteroid 143 Adria". Small Bodies Data Ferret. Retrieved 29 May 2018.
- ^ Pilcher, Frederick (September 2008). "Period Determinations for 26 Proserpina, 34 Circe 74 Galatea, 143 Adria, 272 Antonia, 419 Aurelia, and 557 Violetta". The Minor Planet Bulletin. 35 (3): 135–138. Bibcode:2008MPBu...35..135P. ISSN 1052-8091. Retrieved 29 May 2018.
External links
- Lightcurve plot of 143 Adria, Palmer Divide Observatory, B. D. Warner (2006)
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 143 Adria at AstDyS-2, Asteroids—Dynamic Site
- 143 Adria at the JPL Small-Body Database
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