- 21476 Petrie
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Petrie
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =J. Broughton
discovery_site =Reedy Creek
discovered =April 28 ,1998
designations = yes
mp_name = 21476
alt_names = 1998 HW101
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.3355974
perihelion = 2.0935636
semimajor =
eccentricity = 0.0546455
period = 1203.7481507
avg_speed =
inclination = 6.49142
asc_node = 31.58185
mean_anomaly = 27.28788
arg_peri = 181.58584
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 = 14.621476 Petrie (1998 HW101) is a
Main-belt Asteroid discovered onApril 28 ,1998 byJ. Broughton atReedy Creek .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=21476+Petrie JPL Small-Body Database Browser on 21476 Petrie]
Wikimedia Foundation. 2010.