630 Euphemia

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630 Euphemia
Discovery
Discovered by August Kopff
Discovery date March 7, 1907
Designations
Named after Euphemia
Alternative names 1907 XW; A924 DC
Minor planet category Main belt (Eunomia family)
Orbital characteristics
Epoch August 18, 2005 (JD 2453600.5)
Aphelion 437.1 Gm (2.922 AU)
Perihelion 348.0 Gm (2.326 AU)
Semi-major axis 392.5 Gm (2.624 AU)
Eccentricity 0.114
Orbital period 1552.5 d (4.76 a)
Average orbital speed 18.33 km/s
Mean anomaly 65.452°
Inclination 13.844°
Longitude of ascending node 105.571°
Argument of perihelion 40.580°
Physical characteristics
Dimensions 17 km[1]
Mass ~7×1015 kg (estimate)
Mean density ~2.7 g/cm³ (estimate)[2]
Equatorial surface gravity ~0.006 m/s² (estimate)
Escape velocity ~0.011 km/s (estimate)
Rotation period unknown
Albedo 0.238
Temperature ~165 K
max: 248K (-26° C)
Spectral type S-type asteroid
Absolute magnitude (H) 11.00

630 Euphemia is a mid-sized Eunomian asteroid.

References[edit]

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

External links[edit]