- 15964 Billgray
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Billgray
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =J. M. Roe
discovery_site =Oaxaca
discovered =February 19 ,1998
designations = yes
mp_name = 15964
alt_names = 1998 DU
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.1323938
perihelion = 1.7723474
semimajor =
eccentricity = 0.0922075
period = 996.4185948
avg_speed =
inclination = 18.08095
asc_node = 309.63166
mean_anomaly = 352.11478
arg_peri = 110.77083
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 = 15.215964 Billgray (1998 DU) is a
Inner Main-belt Asteroid discovered onFebruary 19 ,1998 byJ. M. Roe atOaxaca .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=15964+Billgray JPL Small-Body Database Browser on 15964 Billgray]
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