| 词条 | 268 Adorea |
| 释义 |
| minorplanet=yes | background=#D6D6D6 | name=268 Adorea | discoverer=A. Borrelly | discovered=8 June 1887 | mpc_name=(268) Adorea | alt_names= | mp_category=Main belt (Themis) | epoch=31 July 2016 (JD 2457600.5) | semimajor={{Convert|3.09154|AU|Gm|abbr=on}} | perihelion={{Convert|2.66832|AU|Gm|abbr=on}} | aphelion={{Convert|3.51475|AU|Gm|abbr=on|lk=on}} | eccentricity=0.13689 | period=5.44 yr (1985.5 d) | inclination=2.44010° | asc_node=120.914° | arg_peri=69.5742° | mean_anomaly=302.257° | dimensions={{val|139.89|5.2|ul=km}} 140.31 ± 3.34 km[2] | mass={{nowrap|(3.25 ± 2.26) × 1018 kg[2]}} | density=2.24 ± 1.56 g/cm3[2] | rotation={{Convert|7.80|h|d|abbr=on|lk=on}} | spectral_type=FC | abs_magnitude=8.28 | albedo={{val|0.0440|0.003}} | single_temperature= | mean_motion={{Deg2DMS|0.181319|sup=ms}} / day | orbit_ref= | observation_arc=109.30 yr (39920 d) | uncertainty=0 }} Adorea (minor planet designation: 268 Adorea) is a very large Themistian asteroid. It is classified as a primitive carbonaceous F-type/C-type asteroid. It was discovered by A. Borrelly on 8 June 1887 in Marseilles. References1. ^1 2 3 {{Citation | first1 = B. | last1 = Carry | title = Density of asteroids | work = Planetary and Space Science | volume = 73 | pages = 98–118 |date=December 2012 | doi = 10.1016/j.pss.2012.03.009 | bibcode = 2012P&SS...73...98C | postscript= . |arxiv = 1203.4336 }} See Table 1. [1]}} External links
5 : Themis asteroids|Discoveries by Alphonse Borrelly|Named minor planets|FC-type asteroids (Tholen)|Astronomical objects discovered in 1887 |
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