_Chlo%C3%AB.png) Modelled shape of Chloë from its lightcurve | |
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 21 March 1895 |
| Designations | |
| MPC designation | (402) Chloë |
| Pronunciation | /ˈkloʊi/ KLOH-ee |
| Named after | Χλόη Khloē |
| Alternative designations | 1895 BW |
| Minor planet category | Main belt |
| Adjectives | Chloëan (/kloʊˈiːən/ kloh-EE-ən) |
| Orbital characteristics | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 120.77 yr (44,113 d) |
| Aphelion | 2.84302 AU (425.310 Gm) |
| Perihelion | 2.27556 AU (340.419 Gm) |
| Semi-major axis | 2.55929 AU (382.864 Gm) |
| Eccentricity | 0.11086 |
| Orbital period (sidereal) | 4.09 yr (1,495.5 d) |
| Mean anomaly | 263.333° |
| Mean motion | 0° 14 26.617 / day |
| Inclination | 11.8254° |
| Longitude of ascending node | 129.415° |
| Argument of perihelion | 17.6154° |
| Physical characteristics | |
| Dimensions | 54.21±2.5 km |
| Synodic rotation period | 10.664 h (0.4443 d) |
| Geometric albedo | 0.1483±0.015 |
| Spectral type | K |
| Absolute magnitude (H) | 9.02 |
402 Chloë (prov. designation: A895 FB or 1895 BW) is a large main-belt asteroid. It was discovered by French astronomer Auguste Charlois on 21 March 1895 from Nice. This asteroid is orbiting the Sun at a distance of 2.56 AU with a period of 4.09 years and an eccentricity of 0.11. The orbital plane is inclined at an angle of 11.8° to the plane of the ecliptic.
This asteroid spans a girth of approximately 54 km. It is classified as a K-type asteroid and is a Barbarian, which means it belongs to a class of asteroids of which 234 Barbara is the prototype. Analysis of the asteroid light curve, based on photometric data collected during 2009, show a rotation period of 10.664±0.001 h with a brightness variation of 0.30±0.01 in magnitude.
References
- Noah Webster (1884) A Practical Dictionary of the English Language
- ^ "402 Chloe (1895 BW)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 10 May 2016.
- Gil-Hutton, R.; et al. (September 2014), "Polarimetric survey of main-belt asteroids. IV. New results from the first epoch of the CASLEO survey", Astronomy & Astrophysics, 569: 6, Bibcode:2014A&A...569A.122G, doi:10.1051/0004-6361/201424238, hdl:11336/8937, A122.
- Warner, Brian D. (July 2009), "Asteroid Lightcurve Analysis at the Palmer Divide Observatory: 2008 December - 2009 March", Bulletin of the Minor Planets Section of the Association of Lunar and Planetary Observers, 36 (3): 109–116, Bibcode:2009MPBu...36..109W.
External links
- Lightcurve plot of 402 Chloe, Palmer Divide Observatory, B. D. Warner (2009)
- Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (1)-(5000) – Minor Planet Center
- 402 Chloë at AstDyS-2, Asteroids—Dynamic Site
- 402 Chloë at the JPL Small-Body Database
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