16 Psyche

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16 Psyche 16 Psyche symbol.svg
16Psyche (Lightcurve Inversion).png
A three-dimensional model o 16 Psyche based on its licht curve.
Discovery
Discovered bi Annibale de Gasparis
Discovery date Mairch 17, 1852
Designations
Pronunciation /ˈsk/ SY-kee
Named after
Psychē
none
Main belt
Orbital chairactereestics[1]
Epoch October 22, 2004 (JD 2453300.5)
Aphelion 3.328 AU (497.884 Gm)
Perihelion 2.513 AU (375.958 Gm)
2.921 AU (436.921 Gm)
Eccentricity 0.140
4.99 a (1823.115 d)
17.34 km/s
323.379°
Inclination 3.095°
150.352°
228.047°
Pheesical chairacteristics
Dimensions 240×185×145 km[2]
186 km (Geometric mean)
253.2 ± 4 km (IRAS)[1]
Mass 2.27×1019 kg[2]
Mean density

6.49 ± 2.94 g/cm³[2]

3.3 ± 0.7 g/cm³[3]
~0.06 m/s²[citation needit]
~0.13 km/s[citation needit]
0.1748 d (4.196 h)[1][4]
Albedo 0.120 (geometric)[1]
Temperatur ~160 K
max: ~280 K (+7 °C)[citation needit]
Spectral teep
M[1]
9.22 tae 12.19
5.90[1]

16 Psyche is ane o the ten maist massive main-belt asteroids.

References[eedit | eedit soorce]

  1. 1.0 1.1 1.2 1.3 1.4 1.5 "JPL Small-Body Database Browser: 16 Psyche". 2008-09-19 last obs. Retrieved 2008-12-04.  Check date values in: |date= (help)
  2. 2.0 2.1 2.2 Jim Baer (2011). "Recent Asteroid Mass Determinations". Personal Website. Retrieved 2012-04-14. 
  3. Lupishko, D. F. (2006). "On the bulk density and porosity of M-type asteroid 16 Psyche". Solar System Research. 40 (3): 214–218. Bibcode:2006SoSyR..40..214L. doi:10.1134/S0038094606030051. 
  4. PDS lightcurve data Archived 17 Januar 2010 at WebCite