| 词条 | (15430) 1998 UR31 |
| 释义 |
| name = {{mp|(15430) 1998 UR|31}} | background = #D6D6D6 | minorplanet = yes | discovery_ref = | discoverer = SCAP | discovered = 22 October 1998 | discovery_site = Beijing Xinglong Obs. | mp_category = main-belt | alt_names = {{mp|1998 UR|31}}; {{mp|1980 EK|1}} {{mp|2000 AB|153}} | mpc_name = {{mp|(15430) 1998 UR|31}} | orbit_ref = | epoch = 13 January 2016 (JD 2457400.5) | uncertainty = 0 | observation_arc = 22044 days (60.35 yr) | aphelion = {{Convert|2.6001|AU|Gm|abbr=on|lk=on}} | perihelion = {{Convert|1.8433|AU|Gm|abbr=on}} | semimajor = {{Convert|2.2217|AU|Gm|abbr=on}} | eccentricity = 0.17032 | period = 3.31 yr (1209.6 d) | mean_anomaly = 245.22° | mean_motion = {{Deg2DMS|0.29763|sup=ms}} / day | inclination = 8.1801° | asc_node = 62.806° | arg_peri = 177.42° | moid = {{Convert|0.829914|AU|Gm|abbr=on}} | rotation = {{Convert|2.52735|h|d|abbr=on|lk=on}} | albedo = | abs_magnitude = 14.2 }}{{mp|(15430) 1998 UR|31}} is a main-belt binary asteroid. It was discovered through the Beijing Schmidt CCD Asteroid Program at the Xinglong Station in the Chinese province of Hebei on October 22, 1998. A moon was discovered orbiting the asteroid in 2010. The moon has an orbital period of almost exactly a day, and is tidally locked with the asteroid.[1] See also
References1. ^{{cite web |last1=Johnston |first1=Robert |title=(15430) 1998 UR31 |url=http://www.johnstonsarchive.net/astro/astmoons/am-15430.html |website=johnstonsarchive.net |accessdate=29 May 2015}} }} External links
4 : Background asteroids|Discoveries by SCAP|Binary asteroids|Astronomical objects discovered in 1998 |
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