630 Euphemia

Minor Planet | name=630 Euphemia
discoverer=August Kopff
discovery_date=March 7, 1907
designations=1907 XW; A924 DC
category=Main belt (Eunomia family)
epoch=August 18, 2005 (JD 2453600.5)
semimajor=392.5 Gm (2.624 AU)
perihelion=348.0 Gm (2.326 AU)
aphelion=437.1 Gm (2.922 AU)
eccentricity=0.114
period=1552.5 d (4.76 a)
inclination=13.844°
asc_node=105.571°
arg_peri=40.580°
mean_anomaly=65.452°
speed=18.33 km/s
dimensions=17 km ^{[http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab]}
mass=~7×10¹⁵ kg "(estimate)"
density=~2.7 g/cm³ "(estimate)" ^{[#Krasinsky02| [2]}
gravity=~0.006 m/s² "(estimate)"
escape_velocity=~0.011 km/s "(estimate)"
rotation="unknown"
spectral_class=S-type asteroid
abs_mag=11.00
albedo=0.238
temperature=~165 K
"max:" 248K (-26° C)

630 Euphemia is a minor planet orbiting the Sun.

References

#

[http://www.psi.edu/pds/archive/astdata04/simps04/diamalb.tab Supplemental IRAS Minor Planet Survey]

#

G. A. Krasinsky et al "Hidden Mass in the Asteroid Belt", Icarus, Vol. 158, p. 98 (2002).

External links

* [http://cfa-www.harvard.edu/iau/lists/NumberedMPs.txt Discovery Circumstances: Numbered Minor Planets]