(24952) 1997 QJ4

Infobox Planet
bgcolour=#FFFFC0
name=mp|(24952) 1997 QJ|4
discovery=yes
discoverer=Jane X. Luu, Chad Trujillo, David C. Jewitt, and K. Berney
discovered=August 28, 1997
mp_name=mp|(24952) 1997 QJ|4
alt_names=
mp_category=plutino (TNO)
epoch=
aphelion=48.038 AU
perihelion=30.463 AU
semimajor=39.251 AU
eccentricity=0.224
period=
avg_speed=
inclination=16.6°
asc_node=346.8°
mean_anomaly=324.6°
arg_peri=82.2°
physical_characteristics=yes
dimensions=139 km
mass=
density=
surface_grav=
escape_velocity=
sidereal_day=
albedo=0.09 (assumed)
single_temperature=
spectral_type=
abs_magnitude=7.5

(24952) 1997 QJ_f, also written as 1997 QJ4 is a plutino, so it has a 2:3 resonance with Neptune, similar to Pluto. It has a perihelion (closest approach to the Sun) at 30.463 AU and an aphelion (farthest approach from the Sun) at 48.038 AU, so it is in a relatively eccentric orbit. It has a diameter of 139 km, so it is unlikely to be classified as a dwarf planet. It was discovered on 1997-08-28 by Jane X. Luu, Chad Trujillo, David C. Jewitt and K. Berney.

References

1. ^ http://cfa-www.harvard.edu/iau/lists/TNOs.html 2. ^ http://www.johnstonsarchive.net/astro/tnoslist.html