945 Barcelona
945 Barcelona is a minor planet orbiting the Sun in the Asteroid belt. It was discovered 3 February 1921 from Barcelona by the Catalan astronomer Josep Comas i Solà (1868–1937) and named for the city of Barcelona (Spain), the birthplace of the discoverer. It has an estimated diameter of 25.5 km.
Discovery | |
---|---|
Discovered by | J. Comas Solà |
Discovery site | Barcelona |
Discovery date | 3 February 1921 |
Designations | |
MPC designation | (945) Barcelona |
Alternative designations | 1921 JB |
Orbital characteristics | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 92.54 yr (33802 days) |
Aphelion | 3.0656 AU (458.61 Gm) |
Perihelion | 2.2037 AU (329.67 Gm) |
Semi-major axis | 2.6347 AU (394.15 Gm) |
Eccentricity | 0.16357 |
Orbital period (sidereal) | 4.28 yr (1562.0 d) |
Mean anomaly | 115.327° |
Mean motion | 0° 13m 49.692s / day |
Inclination | 32.896° |
Longitude of ascending node | 318.298° |
162.067° | |
Physical characteristics | |
Mean radius | 12.735±0.6 km |
Synodic rotation period | 7.36 h (0.307 d) |
0.2416±0.024 | |
10.13 | |
This object is the namesake of a Barcelona family of approximately 300 stony asteroids that share similar spectral properties and orbital elements; hence they may have arisen from the same collisional event. All members have a relatively high orbital inclination.
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