- 12257 Lassine
Infobox Planet
minorplanet = yes
width = 25em
bgcolour = #FFFFC0
apsis =
name = Lassine
symbol =
caption =
discovery = yes
discovery_ref =
discoverer =E. W. Elst
discovery_site =European Southern Observatory
discovered =April 3 ,1989
designations = yes
mp_name = 12257
alt_names = 1989 GL4
mp_category =
orbit_ref =
epoch =May 14 ,2008
aphelion = 2.8567376
perihelion = 2.2233652
semimajor =
eccentricity = 0.1246771
period = 1478.6390869
avg_speed =
inclination = 13.50044
asc_node = 204.54779
mean_anomaly = 228.87915
arg_peri = 27.53461
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 = 14.112257 Lassine (1989 GL4) is a
Main-belt Asteroid discovered onApril 3 ,1989 byE. W. Elst at theEuropean Southern Observatory .External links
* [http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=12257+Lassine JPL Small-Body Database Browser on 12257 Lassine]
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