451 Patientia

451 Patientia
Discovery
Discovered by Auguste Charlois
Discovery date 4 December 1899
Designations
MPC designation (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)
17.03 km/s
279.30° (M)
0° 11m 2.328s / day (n)
Inclination 15.236° (i)
89.252° (Ω)
337.06° (ω)
Earth MOID 1.84911 AU (276.623 Gm)
Jupiter MOID 1.97439 AU (295.365 Gm)
Jupiter Tisserand parameter 3.176
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

    1. 1 2 3 4 5 Yeomans, Donald K., "451 Patientia", JPL Small-Body Database Browser, NASA Jet Propulsion Laboratory, retrieved 10 May 2016.
    2. 1 2 3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73, pp. 98–118, Bibcode:2012P&SS...73...98C, arXiv:1203.4336 Freely accessible, doi:10.1016/j.pss.2012.03.009. See Table 1.
    3. ↑ 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, 443 (1), pp. 329–335, Bibcode:2005A&A...443..329M, doi:10.1051/0004-6361:20053656.


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