280 Philia
Main-belt asteroid
280 Philia is a fairly large Main belt asteroid.[2] It was discovered by Johann Palisa on 29 October 1888 at the Vienna Observatory.
Sparse data collected during a 1987 study indicated this asteroid has a rotation period of approximately 64 hours, which is much longer than can be continually observed from one site. During 2010−2011, an international collaboration to study the asteroid collected 9,037 photometric data points over 38 sessions. The resulting light curve analysis displays a rotation period of 70.26±0.03 h with a brightness variation of 0.15±0.02 in magnitude.[3]
References
- ^ "280 Philia". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
- ^ Lewis, James R. (2003). The Encyclopedia of Heavenly Influences. p. 521. ISBN 9781578591442. Retrieved 6 April 2015.
- ^ Pilcher, Frederick; et al. (July 2011), "Rotation Period Determination for 280 Philia - A Triumph of Global Collaboration", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, vol. 38, no. 3, pp. 127–128, Bibcode:2011MPBu...38..127P.
External links
- 280 Philia at AstDyS-2, Asteroids—Dynamic Site
- Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
- 280 Philia at the JPL Small-Body Database
- Close approach · Discovery · Ephemeris · Orbit diagram · Orbital elements · Physical parameters
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- 279 Thule
- 280 Philia
- 281 Lucretia
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