- 4550 Royclarke
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Royclarke
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =S. J. Bus
discovery_site = Palomar
discovered =April 24 ,1977
designations = yes
mp_name = 4550
alt_names = 1977 HH1
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 3.7783579
perihelion = 2.4713807
semimajor =
eccentricity = 0.2091251
period = 2017.6517627
avg_speed =
inclination = 0.25495
asc_node = 18.51495
mean_anomaly = 138.99630
arg_peri = 310.23116
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 = 12.84550 Royclarke (1977 HH1) is a
Main-belt Asteroid discovered onApril 24 ,1977 byS. J. Bus at Palomar.External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=4550+Royclarke JPL Small-Body Database Browser on 4550 Royclarke]
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