Astronomy:945 Barcelona
From HandWiki
| Discovery | |
|---|---|
| Discovered by | J. Comas Solà |
| Discovery site | Barcelona |
| Discovery date | 3 February 1921 |
| Designations | |
| (945) Barcelona | |
| 1921 JB | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 92.54 yr (33802 days) |
| |{{{apsis}}}|helion}} | 3.0656 astronomical unit|AU (458.61 Gm) |
| |{{{apsis}}}|helion}} | 2.2037 AU (329.67 Gm) |
| 2.6347 AU (394.15 Gm) | |
| Eccentricity | 0.16357 |
| Orbital period | 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 |
| Rotation period | 7.36 h (0.307 d) |
| Geometric albedo | 0.2416±0.024 |
| Absolute magnitude (H) | 10.13 |
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.
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.[2]
References
- ↑ Yeomans, Donald K., "945 Barcelona", JPL Small-Body Database Browser (NASA Jet Propulsion Laboratory), https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=945, retrieved 2 May 2016.
- ↑ Novaković, Bojan et al. (November 2011), "Families among high-inclination asteroids", Icarus 216 (1): pp. 69–81, doi:10.1016/j.icarus.2011.08.016, Bibcode: 2011Icar..216...69N.
External links
- 945 Barcelona at AstDyS-2, Asteroids—Dynamic Site
- 945 Barcelona at the JPL Small-Body Database
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