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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.''
