334 Chicago

Chicago (minor planet designation: 334 Chicago) is a very large main-belt asteroid. It is classified as a C-type asteroid and is probably composed of carbonaceous material.

334 Chicago
Modelled shape of Chicago from its lightcurve
Discovery
Discovered byMax Wolf
Discovery date23 August 1892
Designations
(334) Chicago
Named after
Chicago
1892 L
Main belt
AdjectivesChicagoan /ʃɪˈkɑːɡən/
Orbital characteristics[1]
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc123.39 yr (45069 d)
Aphelion3.98201 AU (595.700 Gm)
Perihelion3.80814 AU (569.690 Gm)
3.89507 AU (582.694 Gm)
Eccentricity0.022319
7.69 yr (2807.8 d)
110.236°
0° 7m 41.567s / day
Inclination4.64130°
130.179°
148.310°
Physical characteristics
Dimensions198.77±5.7 km[1]
167.26 ± 7.27 km[2]
Mass(5.06 ± 5.63) × 1018 kg[2]
7.361 h (0.3067 d)
0.041±0.013
C
7.7

    It was discovered by Max Wolf on August 23, 1892, in Heidelberg.

    During 1999, the asteroid was observed occulting a star. The resulting chords provided a cross-section diameter estimate of 174.1 km.[3]

    References

    1. "334 Chicago (1892 L)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 11 May 2016.
    2. Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73: 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009, S2CID 119226456. See Table 1.
    3. Shevchenko, Vasilij G.; Tedesco, Edward F. (September 2006), "Asteroid albedos deduced from stellar occultations", Icarus, 184 (1): 211–220, Bibcode:2006Icar..184..211S, doi:10.1016/j.icarus.2006.04.006.


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