42355 Typhon

Minor Planet
name=42355 Typhon
discoverer=NEAT
discovery_date=February 5, 2002
designations=2002 CR₄₆
category= Scattered disccite web
date=2008-03-14 last obs
title=JPL Small-Body Database Browser: (42355 Typhon)
url=http://ssd.jpl.nasa.gov/sbdb.cgi?sstr=42355
accessdate=2008-09-21] cite web
title=List Of Centaurs and Scattered-Disk Objects
publisher=Minor Planet Center
url=http://www.cfa.harvard.edu/iau/lists/Centaurs.html
accessdate=2008-09-21]
Centaur [ [http://www.johnstonsarchive.net/astro/astmoons/am-42355.html (42355) Typhon and Echidna ] ]
epoch=
semimajor=38.162506 AU
perihelion=17.525714 AU
aphelion=58.799297 AU
eccentricity=0.5407609
period=
inclination=2.4280935°
asc_node=351.9923803°
arg_peri=159.0020803°
mean_anomaly=359.6998644°
speed=?
dimensions=134±13 km
mass=?
density=?
gravity=?
escape_velocity=?
rotation=?
spectral_class=B-V=0.74±0.02 V-R=0.52±0.01
abs_mag=7.65±0.01
albedo=0.10±0.02
temperature=?

42355 Typhon (pronEng|ˈtaɪfɒn, from _la. Tȳphōn, _gr. "Τυφών") is a Scattered disc object that was discovered on February 5, 2002 by the NEAT program. It is named after the monster of Greek myth, Typhon.

Echidna

Typhon has a single known satellite known as (42355) Typhon I Echidna (pronEng|ɪˈkɪdnə, from _gr. "Έχιδνα"). It orbits its primary at ~1300 km, completing one orbit in about 11 days. It's diameter is estimated to be 78±8 km.

References