9994 Grotius

Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = 9994 Grotius
symbol =


caption = Orbit of 9994 Grotius (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
discovery = yes
discovery_ref =
discoverer = C.J. van Houten, I. van Houten-Groeneveld & T. Gehrels
discovered = September 24, 1960
designations = yes
mp_name =
alt_names = 4028 P-L, 1981 WH9
mp_category =
orbit_ref =
epoch = October 27, 2007
aphelion = 3.0404076 AU
perihelion = 2.1284272 AU
semimajor = 2.5844174 AU
eccentricity = 0.1764383
period = 1517.5479124 d
avg_speed =
inclination = 7.16682°
asc_node = 207.32831°
mean_anomaly = 70.85615°
arg_peri = 224.17255°
satellites =
physical_characteristics = yes
dimensions =
mass =
density =
surface_grav =
escape_velocity =
sidereal_day =
axial_tilt =
pole_ecliptic_lat =
pole_ecliptic_lon =
albedo =
temperatures=yes
temp_name1 = Kelvin
mean_temp_1 =
max_temp_1 =
temp_name2 = Celsius
max_temp_2 =
spectral_type =
abs_magnitude = 14.3

9994 Grotius is a main belt asteroid. It orbits the Sun once every 4.15 years. [cite web|url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=9994%20Grotius;orb=0;cov=0;log=0#elem|title = 9994 Grotius (4028 P-L)|work = JPL Small-Body Database Browser]

Discovered on September 24, 1960 by C. J. van Houten and I. van Houten-Groeneveld on photographic plates made by T. Gehrels, it was given the provisional designation 4028 P-L. It was later renamed 9994 Grotius, to honour Hugo Grotius. ["MPC 41571" Minor Planet Center]

References