| 词条 | 431 Nephele |
| 释义 |
| minorplanet=yes | background=#D6D6D6 | name=431 Nephele | discoverer=Auguste Charlois | discovered=18 December 1897 | mpc_name=(431) Nephele | alt_names=1897 DN | named_after=Nephele | mp_category=Main belt (Themis) | epoch=31 July 2016 (JD 2457600.5) | semimajor={{Convert|3.14507|AU|Gm|abbr=on}} | perihelion={{Convert|2.61178|AU|Gm|abbr=on}} | aphelion={{Convert|3.67837|AU|Gm|abbr=on|lk=on}} | eccentricity=0.16957 | period=5.58 yr (2037.3 d) | inclination=1.82752° | asc_node=117.229° | arg_peri=216.161° | mean_anomaly=230.611° | mean_diameter={{val|95.03|1.6|ul=km}} | rotation={{Convert|18.821|h|d|abbr=on|lk=on}} | spectral_type=C | abs_magnitude=8.72 | albedo={{val|0.0636|0.002}} | mean_motion={{Deg2DMS|0.176709|sup=ms}} / day | orbit_ref= | observation_arc=113.52 yr (41462 d) | uncertainty=0 }} Nephele (minor planet designation: 431 Nephele) is a large Themistian asteroid. It is spectral C-type and is probably composed of carbonaceous material. It was discovered by Auguste Charlois on 18 December 1897 in Nice. References}} External links
8 : Themis asteroids|Background asteroids|Discoveries by Auguste Charlois|Minor planets named from Greek mythology|Named minor planets|B-type asteroids (Tholen)|B-type asteroids (SMASS)|Astronomical objects discovered in 1897 |
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