Discovery | |
---|---|
Discovered by | J. Perrotin |
Discovery date | 11 October 1885 |
Designations | |
MPC designation | (252) Clementina |
Alternative designations | A885 TB |
Minor planet category | Main belt |
Orbital characteristics | |
Epoch 31 July 2016 (JD 2457600.5) | |
Uncertainty parameter 0 | |
Observation arc | 130.51 yr (47667 d) |
Aphelion | 3.3790 AU (505.49 Gm) |
Perihelion | 2.93952 AU (439.746 Gm) |
Semi-major axis | 3.15924 AU (472.616 Gm) |
Eccentricity | 0.069548 |
Orbital period (sidereal) | 5.62 yr (2051.0 d) |
Average orbital speed | 16.77 km/s |
Mean anomaly | 131.151° |
Mean motion | 0° 10 31.876 / day |
Inclination | 10.044° |
Longitude of ascending node | 202.043° |
Argument of perihelion | 155.886° |
Physical characteristics | |
Dimensions | 69.29±4.4 km |
Synodic rotation period | 10.864 h (0.4527 d) |
Geometric albedo | 0.0843±0.012 |
Absolute magnitude (H) | 9.7 |
252 Clementina is a large main belt asteroid that was discovered by French astronomer Henri Joseph Anastase Perrotin on 11 October 1885 in Nice, France. The origin of the name is not known.
Photometric observations of this asteroid at the Organ Mesa Observatory in Las Cruces, New Mexico, during 2012 gave a light curve with a period of 10.864 ± 0.001 hours and a brightness variation of 0.37 ± 0.02 in magnitude. This result is in agreement with previous studies.
References
- ^ Yeomans, Donald K., "252 Clementina", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 12 May 2016.
- ^ Pilcher, Frederick (October 2012), "Rotation Period Determinations for 47 Aglaja, 252 Clementina, 611 Valeria, 627 Charis, and 756 Lilliana", Minor Planet Bulletin, vol. 39, pp. 220–222, Bibcode:2012MPBu...39..220P.
- "Numbered Minor Planets 1–5000", Discovery Circumstances, IAU Minor Planet center, retrieved 7 April 2013.
External links
- Lightcurve plot of 252 Clementina, Palmer Divide Observatory, B. D. Warner (2007)
- 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
- 252 Clementina at AstDyS-2, Asteroids—Dynamic Site
- 252 Clementina at the JPL Small-Body Database
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