747 Winchester
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A three-dimensional model of 747 Winchester based on its light curve. | |
| Discovery | |
|---|---|
| Discovered by | Joel Hastings Metcalf |
| Discovery site | Winchester, Massachusetts |
| Discovery date | March 7, 1913 |
| Designations | |
| 1913 QZ | |
| Orbital characteristics | |
| Epoch November 6, 2001 (JDCT 2452219.5) | |
| Aphelion | 4.024 AU |
| Perihelion | 1.958 AU |
| 2.991 AU | |
| Eccentricity | 0.345 |
| 5.173 a | |
Average orbital speed | 17.15 km/s |
| 116.538° | |
| Inclination | 18.179° |
| 130.217° | |
| 275.631° | |
| Physical characteristics | |
| Dimensions | 170.07 ± 6.70[1] km |
| Mass | (3.81 ± 2.22) × 1018[1] kg |
Mean density | 1.47 ± 0.87[1] g/cm3 |
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747 Winchester is an asteroid, a minor planet orbiting the Sun. It was discovered in 1913, and is named after the town in which it was discovered, Winchester, Massachusetts, in the USA.
Photometric observations of this asteroid at the Palmer Divide Observatory in Colorado Springs, Colorado in 2007 gave a light curve with a period of 9.4146 ± 0.0002 hours and a brightness variation of 0.16 ± 0.02 in magnitude. This is reasonably consistent with independent results reported in 1983 (9.40h), 1993 (9.402h), and 2007 (9.334h).[2]
References
- 1 2 3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ↑ Warner, Brian D. (December 2007), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory - March-May 2007", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers 34 (4), pp. 104–107, Bibcode:2007MPBu...34..104W.
External links
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