2002 MS4

Infobox Planet
bgcolour=#FFFFC0
name=mp|2002 MS|4
discovery=yes
discoverer=Chad Trujillo,
Michael E. Brown
discovered=18 June, 2002
mp_name=mp|2002 MS|4
alt_names="none"
mp_category=TNO
epoch=December 31, 2006 (JD 2 454 100.5)
semimajor=6 272.155 Gm (41.927 AU)
perihelion=5 399.794 Gm (36.095 AU)
aphelion=7 144.517 Gm (47.758 AU)
eccentricity=0.139
period=99 159.774 d (271.48 a)
inclination=17.667°
asc_node=215.959°
arg_peri=215.558°
mean_anomaly=203.851°
avg_speed=4.58 km/s
physical_characteristics=yes
dimensions=726 ± 123 kmStansberry, Grundy, Brown, Spencer, Trilling, Cruikshank, Luc Margot "Physical Properties of Kuiper Belt and Centaur Objects: Constraints from Spitzer Space Telescope" (2007) [http://arxiv.org/abs/astro-ph/0702538v1 Preprint arXiv] ]
mass=(0.78–1.8)e|20? kg
density=2.0? g/cm³
surface_grav=0.12-0.33? m/s²
escape_velocity=0.22–0.63? km/s
sidereal_day=? d
spectral_type= B-V=0.69; V-R=0.38 [cite web|url=http://www.physics.nau.edu/~tegler/research/survey.htm |title=Kuiper Belt Object Magnitudes and Surface Colors |accessdate=2006-11-05 |last=Tegler |first=Stephen C. |coauthors= |date=2006-01-26]
abs_magnitude=3.85
albedo=0.08
single_temperature=~43 K

mp|2002 MS|4 is a Trans-Neptunian object (TNO). It was discovered in 2002 by Chad Trujillo and Michael E. Brown. It is classified as a Kuiper belt object.

References