451 Patientia
| Discovery | |
|---|---|
| Discovered by | Auguste Charlois |
| Discovery date | 4 December 1899 |
| Designations | |
| (451) Patientia | |
| Pronunciation | /peɪˈʃɛnʃə/ pay-SHEN-shə |
Named after | patience |
| 1899 EY | |
| Asteroid belt | |
| Orbital characteristics[1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 116.36 yr (42499 d) |
| Aphelion | 3.2929 AU (492.61 Gm) (Q) |
| Perihelion | 2.8304 AU (423.42 Gm) (q) |
| 3.0616 AU (458.01 Gm) (a) | |
| Eccentricity | 0.075545 (e) |
| 5.36 yr (1956.7 d) | |
| 279.30° (M) | |
| 0° 11m 2.328s / day (n) | |
| Inclination | 15.236° (i) |
| 89.252° (Ω) | |
| 337.06° (ω) | |
| Physical characteristics | |
| Dimensions | 224.96±4.4 km[1] 234.42 ± 10.17 km[2] |
| Mass | (1.09 ± 0.53) × 1019 kg[2] |
Mean density | 1.60 ± 0.80 g/cm3[2] |
| 9.727 h (0.4053 d)[1] | |
| 0.0764±0.003[1] | |
| 6.65[1] | |
451 Patientia is the 15th-largest asteroid in the asteroid belt with a diameter of 225 km. It was discovered by French astronomer Auguste Charlois on December 4, 1899, and assigned a provisional designation 1899 EY.
It regularly reaches 11th magnitude in brightness, as in January 11, 2013, and December 12, 2017, when in favorable oppositions will be at magnitudes 10.7 and 10.4 respectively, very bright for a later-discovered minor planet.
Multiple photometric studies of this asteroid were performed between 1969 and 2003. The combined data gave an irregular light curve with a synodic period of 9.730 ± 0.004 hours and a brightness variation of 0.05–0.10 in magnitude.[3]
References
- ^ a b c d e Yeomans, Donald K., "451 Patientia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 10 May 2016.
- ^ a b c Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, vol. 73, pp. 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ^ Michałowski, T.; et al. (April 2005), "Photometry and models of selected main belt asteroids. II. 173 Ino, 376 Geometria, and 451 Patientia", Astronomy and Astrophysics, vol. 443, no. 1, pp. 329–335, Bibcode:2005A&A...443..329M, doi:10.1051/0004-6361:20053656.
External links
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