(20108) 1995 QZ9

Infobox Planet
bgcolour=#FFFFC0
name=mp|(20108) 1995 QZ|9
discovery=yes
discoverer=D. C. Jewitt, J. Chen [ [http://cfa-www.harvard.edu/iau/lists/TNOs.html List Of Transneptunian Objects ] ]
discovered=August 29, 1995
mp_name=mp|(20108) 1995QZ|9
alt_names="none"
mp_category=plutino
epoch=December 31, 2006 (JD 2454100.5)
semimajor=5881.325 Gm (39.314 AU)
perihelion=5029.726 Gm (33.622 AU)
aphelion=6732.923 Gm (45.007 AU)
eccentricity=0.145
period=90037.419 d (246.51 a)
inclination=19.584°
asc_node=188.039°
arg_peri=141.803°
mean_anomaly=46.766°
avg_speed=4.73 km/s
physical_characteristics=yes
dimensions=116 km [ [http://www.johnstonsarchive.net/astro/tnoslist.html List of known trans-Neptunian objects ] ]
mass=1.6e|18? kg
density=2.0? g/cm³
surface_grav=0.0324? m/s²
escape_velocity=0.0613? km/s
sidereal_day=? d
spectral_type=?
abs_magnitude=7.9
albedo=0.10?
single_temperature=~44 K

mp|(20108) 1995 QZ|9, also written (20108) 1995 QZ9, is a trans-Neptunian object (TNO) that resides in the Kuiper belt. It was discovered on August 29, 1995 by David C. Jewitt and Jun Chen at the Mauna Kea Observatory, Hawaii. Since it is in a 3:2 orbital resonance with Neptune similar to Pluto, it has been catigorized as a plutino.

References