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 biAnnibale de Gasparis
Discovery dateMairch 17, 1852
Designations
Pronunciation/ˈsk/ SY-kee
Named after
Psychē
none
Main belt
Orbital chairactereestics[1]
Epoch October 22, 2004 (JD 2453300.5)
Aphelion3.328 AU (497.884 Gm)
Perihelion2.513 AU (375.958 Gm)
2.921 AU (436.921 Gm)
Eccentricity0.140
4.99 a (1823.115 d)
17.34 km/s
323.379°
Inclination3.095°
150.352°
228.047°
Pheesical chairacteristics
Dimensions240×185×145 km[2]
186 km (Geometric mean)
253.2 ± 4 km (IRAS)[1]
Mass2.27×1019 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]
Albedo0.120 (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. a b c d e f "JPL Small-Body Database Browser: 16 Psyche". 2008-09-19 last obs. Retrieved 2008-12-04. Check date values in: |date= (help)
  2. a b c Jim Baer (2011). "Recent Asteroid Mass Determinations". Personal Website. Archived frae the original on 21 October 2013. Retrieved 14 Apryle 2012.
  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 2010-01-17 at WebCite