Astronomy:143 Adria

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Short description: Main-belt asteroid
143 Adria
Орбита астероида 143.png
Orbital diagram
Discovery[1]
Discovered byJ. Palisa
Discovery siteAustrian Naval Obs.
Discovery date23 February 1875
Designations
(143) Adria
Pronunciation/ˈdriə/[4]
Named afterAdriatic Sea
A875 DA; 1960 WK1
Minor planet categorymain-belt[1][2] · (middle)
background[3]
Orbital characteristics[2]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc138.03 yr (50,415 d)
|{{{apsis}}}|helion}}2.9688 AU
|{{{apsis}}}|helion}}2.5557 AU
2.7622 AU
Eccentricity0.0748
Orbital period4.59 yr (1,677 d)
Mean anomaly354.65°
Mean motion0° 12m 52.92s / day
Inclination11.442°
Longitude of ascending node333.04°
252.89°
Physical characteristics
Mean diameter89.93±1.9 km
Mass7.6×1017 kg
Rotation period22.005 h (0.9169 d)[2][5]
Geometric albedo0.0491±0.002
C
Absolute magnitude (H)9.12


Adria (minor planet designation: 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.[5]

References

External links