| 词条 | 54598 Bienor |
| 释义 |
| minorplanet = yes | background = #C7FF8F | name = 54598 Bienor | discoverer = DES | discovery_site = Cerro Tololo Obs. | discovered = 27 August 2000 | mpc_name = (54598) Bienor | alt_names = {{mp|2000 QC|243}} | mp_category = Centaur | epoch = 13 January 2016 (JD 2457400.5) | semimajor = {{Convert|16.480|AU|Tm|abbr=on}} | perihelion = {{Convert|13.157|AU|Tm|abbr=on}} | aphelion = {{Convert|19.802|AU|Tm|abbr=on|lk=on}} | eccentricity = 0.20164 | period = 66.90 yr (24435 d) | inclination = 20.754° | asc_node = 337.895° | arg_peri = 153.132° | mean_anomaly = 295.216° | avg_speed = 7.26 km/s | dimensions = 207±30 km | mass = | density = | surface_grav = | escape_velocity = | rotation = {{Convert|9.14|h|d|abbr=on|lk=on}} | spectral_type = | magnitude = ~ 20.1[3] | abs_magnitude = 7.5 | sidereal_day = 9.14 h | albedo = 0.03–0.05 | single_temperature = ~ 69 K | mean_motion = {{Deg2DMS|0.014733|sup=ms}} / day | orbit_ref = | observation_arc = 14789 days (40.49 yr) | uncertainty = 1 | moid = {{Convert|12.1841|AU|Tm|abbr=on}} | jupiter_moid = {{Convert|7.8707|AU|Tm|abbr=on}} | tisserand = 3.576 }}54598 Bienor ({{IPAc-en|b|i|ˈ|iː|n|ɔːr}} {{respell|bee|EE|nor}}; from {{Lang-el|Βιάνωρ}} Bianor) is a centaur that grazes the orbit of Uranus. It is named after the mythological Centaur Bienor. Its closest approach to the Sun (perihelion) is 13.2 AU. {{As of|2015}}, Bienor is currently 15.8 AU from the Sun[3] and will reach perihelion in January 2028. }} External links
6 : Centaurs (minor planets)|Discoveries by the Deep Ecliptic Survey|Minor planets named from Greek mythology|Named minor planets|Possible dwarf planets|Astronomical objects discovered in 2000 |
| 随便看 |
|
开放百科全书收录14589846条英语、德语、日语等多语种百科知识，基本涵盖了大多数领域的百科知识，是一部内容自由、开放的电子版国际百科全书。