(9989) 1997 SG16

Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = mp|(9989) 1997 SG|16
symbol =


caption = Orbit of 9989 1997 SG16 (blue), planets (red) and the Sun (black). The outermost planet visible is Jupiter.
discovery = yes
discovery_ref =
discoverer = N. Kawasato
discovered = September 27, 1997
designations = yes
mp_name =
alt_names = 1985 DY2, 1990 EN8, 1992 TP
mp_category =
orbit_ref =
epoch = October 27, 2007
aphelion = 2.8938139 AU
perihelion = 2.8159419 AU
semimajor = 2.8548779 AU
eccentricity = 0.0136384
period = 1761.8938480 d
avg_speed =
inclination = 1.81932°
asc_node = 187.61467°
mean_anomaly = 276.99091°
arg_peri = 306.04538°
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 = 13.2

mp|(9989) 1997 SG|16 is a main belt asteroid. It orbits the Sun once every 4.82 years. [cite web|url = http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=9989%201997%20SG16;orb=0;cov=0;log=0#elem|title = 9989 (1997 SG16)|work = JPL Small-Body Database Browse]

Discovered by Nobuhiro Kawasato on September 27, 1997, it was given the provisional designation mp|1997 SG|16. [ "MPO 121725" Minor Planet Center]

References