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#redirect [[(395695) 2012 AW21]]
{{Infobox Planet
|minorplanet = yes
|width = 25em
|bgcolour =
|apsis =
|name = 2008 RL21
|symbol =
|image =
|caption =
|discovery = yes
|discovery_ref =
|discoverer =
|discovery_site =
|discovered =
|designations = yes
|mp_name =
|alt_names =
|mp_category =
|orbit_ref =
|epoch =
|aphelion =5.231
|perihelion =4.913
|semimajor =5.072
|eccentricity =0.031
|period =
|avg_speed =
|inclination =7.1
|asc_node =346.6
|mean_anomaly =27.51
|arg_peri =154.1
|satellites =
|physical_characteristics = yes
|dimensions =
|mass =
|density =
|surface_grav =
|escape_velocity =
|sidereal_day =
|axial_tilt =
|pole_ecliptic_lat =
|pole_ecliptic_lon =
|albedo =
|temperatures=
|temp_name1 =
|mean_temp_1 =
|max_temp_1 =
|temp_name2 =
|max_temp_2 =
|spectral_type =
|abs_magnitude =13.7
}}
'''2008 RL21''' adalah sebuah [[asteroid]]. Asteroid ini merupakan bagian dari [[asteroid Troya Yupiter]], yang terletak di orbit [[Yupiter]]. [[Eksentrisitas orbit]] asteroid ini tercatat sebesar 0.031, sementara [[magnitudo mutlak]]nya adalah 13.7.
== Pembentukan ==
Seperti asteroid secara keseluruhan, asteroid ini terbentuk dari [[nebula]] [[matahari]] primordial sebagai pecahan [[planetisimal]], sesuatu di nebula matahari muda yang tidak cukup besar untuk berubah menjadi [[planet]].<ref>{{cite web | title=What Are Asteroids And Comets? | url=http://neo.jpl.nasa.gov/faq/#ast | work=Near Earth Object Program FAQ | publisher=[[NASA]] | accessdate=13 September 2010 | archiveurl=http://web.archive.org/web/20100909210213/http://neo.jpl.nasa.gov/faq/ | archivedate=9 September 2010 | deadurl=no}}</ref>
== Referensi ==
{{Reflist}}
== Pranala luar ==
* [http://www.minorplanetcenter.net/iau/lists/t_jupitertrojans.html Daftar asteroid Troya Yupiter] - ''The International Astronomical Union Minor Planet Center.''
