2011 UG21: Perbedaan antara revisi

| minorplanet = yes

| width = 25em

| bgcolour =

| apsis =

| name = 2011 UG21

| symbol =

| image =

| caption =

| discovery = yes

| discovery_ref =

| discoverer =Siding Spring Survey

| discovery_site =E12

| discovered = 2011/10/19

| designations = yes

| mp_name =

| alt_names =

| mp_category =

| orbit_ref =

| epoch =

| aphelion =1.450

| perihelion =0.424

| semimajor =0.937

| eccentricity =0.547

| period =

| avg_speed =

| inclination =14.6

| asc_node =86.6

| mean_anomaly =336.6

| arg_peri =82.4

| 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 =19.4

Seperti asteroid pada umumnya, 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=httphttps://web.archive.org/web/20100909210213/http://neo.jpl.nasa.gov/faq/#ast | archivedate=9 September 2010-09-09 | deadurl=no }}</ref>

{{asteroidAsteroid-stub}}