| 词条 | 284 Amalia |
| 释义 |
| minorplanet=yes | background=#D6D6D6 | name=284 Amalia | discoverer=Auguste Charlois | discovered=29 May 1889 | mpc_name=(284) Amalia | alt_names= | mp_category=Main belt | epoch=31 July 2016 (JD 2457600.5) | semimajor={{Convert|2.35876|AU|Gm|abbr=on}} | perihelion={{Convert|1.83631|AU|Gm|abbr=on}} | aphelion={{Convert|2.88122|AU|Gm|abbr=on|lk=on}} | eccentricity=0.22149 | period=3.62 yr (1323.2 d) | inclination=8.05647° | asc_node=233.716° | arg_peri=58.0568° | mean_anomaly=0.0848612° | avg_speed=19.39 km/s | dimensions={{val|52.95|2.6|ul=km}} | mass= | density= | rotation={{Convert|8.545|h|d|abbr=on|lk=on}} | spectral_type= | abs_magnitude=10.05 | albedo={{val|0.0602|0.006}} | mean_motion={{Deg2DMS|0.272068|sup=ms}} / day | orbit_ref=[1] | observation_arc=122.66 yr (44800 d) | uncertainty=0 }} Amalia (minor planet designation: 284 Amalia) is a large Main belt asteroid.[2] It was discovered by Auguste Charlois on 29 May 1889 in Nice. References1. ^{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=284;cad=1 |title=284 Amalia |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=11 May 2016}} 2. ^{{cite web|url=http://www.asteroidoccultation.com/2014_09/0925_284_33588.htm|title=284 Amalia|publisher=Asteroid Occulation|accessdate=6 April 2015}} External links
7 : Background asteroids|Discoveries by Auguste Charlois|Minor planets with names of unknown origin|Named minor planets|CX-type asteroids (Tholen)|Ch-type asteroids (SMASS)|Astronomical objects discovered in 1889 |
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