| 词条 | 987 Wallia |
| 释义 |
| minorplanet= yes | background= #D6D6D6 | name= 987 Wallia | mpc_name= (987) Wallia | alt_names= 1922 MR | discoverer= K. Reinmuth | discovery_site= Heidelberg | discovered= 23 October 1922 | orbit_ref= [1] | observation_arc= 93.20 yr (34043 days) | uncertainty= 0 | epoch= 31 July 2016 (JD 2457600.5) | eccentricity= 0.23534 | semimajor= {{Convert|3.1399|AU|Gm|abbr=on}} | perihelion= {{Convert|2.4009|AU|Gm|abbr=on}} | aphelion= {{Convert|3.8788|AU|Gm|abbr=on|lk=on}} | period= 5.56 yr (2032.2 d) | inclination= 8.9087° | asc_node= 322.677° | arg_peri= 16.251° | mean_anomaly= 322.186° | mean_motion= {{Deg2DMS|0.17715|sup=ms}} / day | abs_magnitude= 9.5 | rotation= {{Convert|10.0813|h|d|abbr=on|lk=on}} | albedo= {{val|0.1765|0.009}} | mean_radius= {{val|21.835|0.5}} km }} 987 Wallia is a minor planet orbiting the Sun. References1. ^{{Cite web |url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=987;cad=1 |title=987 Wallia (1922 MR) |work=JPL Small-Body Database |publisher=NASA/Jet Propulsion Laboratory |access-date=2 May 2016}} External links
5 : Background asteroids|Discoveries by Karl Wilhelm Reinmuth|Minor planets named for people|Named minor planets|Astronomical objects discovered in 1922 |
| 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。