(118378) 1999 HT11

Infobox Planet | discovery=yes | physical_characteristics=yes | bgcolour=#FFFFC0
name=mp|(118378) 1999 HT|11
discoverer=Kitt Peak National Observatory
discovered=April 17, 1999
mp_name=mp|(118378) 1999 HT|11
alt_names="none"
mp_category=TNO (cubewano)
epoch=
semimajor=44.044 AU
perihelion=38.858 AU
aphelion=49.231 AU
eccentricity=0.118
period=?
inclination=5.0°
asc_node=88.0°
arg_peri=186.4°
mean_anomaly=313.2°
avg_speed=?
dimensions=146 km [ [http://www.johnstonsarchive.net/astro/tnoslist.html List of known trans-Neptunian objects ] ]
mass=? kg
density=? g/cm³
surface_grav=? m/s²
escape_velocity=?
sidereal_day=?
spectral_type=?
abs_magnitude=7.4
albedo=0.09? (assumed)
single_temperature=? K

mp|(118378) 1999 HT|11, also written as (118378) 1999 HT11, is a cubewano. It travels in a highly eccentric orbit which has a perihelion (closest approach to the Sun) at 38.858 AU and an aphelion (farthest approach from the Sun) at 49.231 AU. It is about 146 km in diameter. It was discovered on April 17, 1999 at Kitt Peak National Observatory, Arizona.

Due to its small size, it is unlikely to be classified as a dwarf planet.

References

1. http://cfa-www.harvard.edu/iau/lists/TNOs.html