25 Phocaea

25 Phocaea
Lightcurve-base 3D-model of Phocaea
Discovery [1][2]
Discovered byJ. Chacornac
Discovery siteMarseille Obs.
Discovery date6 April 1853
Designations
(25) Phocaea
Pronunciation/foʊˈsiːə/[3]
Named after
Phōcæa [4]
(ancient Greek city)
1956 GC
main-belt · (inner)
Phocaea [5][6]
AdjectivesPhocaean /foʊˈsiːən/[7]
Orbital characteristics [1]
Epoch 4 September 2017 (JD 2458000.5)
Uncertainty parameter 0
Observation arc157.44 yr (57,504 days)
Aphelion3.0104 AU
Perihelion1.7899 AU
2.4001 AU
Eccentricity0.2543
3.72 yr (1,358 days)
13.891°
0° 15m 54.36s / day
Inclination21.606°
214.14°
90.245°
Physical characteristics
Dimensions61.05±2.46 km[8]
61.054±2.463 km[8]
71 km[9]
75.13±3.6 km[5][10]
80.19±4.66 km[11]
82±8 km[12]
83.21±0.96 km[13]
Mass(5.99 ± 0.60) × 1017 kg[11]
Mean density
2.21±0.44 g/cm3[11]
9.92±0.05 h[14]
9.9341±0.0002 h[15]
9.935±0.003 h[16]
9.945±0.002 h[17]
9.945 h[18]
9.95±0.01 h[14]
0.189±0.005[13]
0.2310±0.024[5][10]
0.350±0.046[8]
Tholen = S [1]
SMASS = S [1][5] · S [19]
B–V = 0.932 [1]
U–B = 0.513 [1]
7.83[1][5][8][10][13] · 7.90±0.25[20]

25 Phocaea (/foʊˈsiːə/) is a stony asteroid from the inner regions of the asteroid belt, approximately 75 kilometers in diameter. It is the parent body of the Phocaea family. Discovered by Jean Chacornac in 1853, it was named after the ancient Greek city of Phocaea.

  1. ^ a b c d e f g Cite error: The named reference jpldata was invoked but never defined (see the help page).
  2. ^ Cite error: The named reference MPC-object was invoked but never defined (see the help page).
  3. ^ Noah Webster (1884) A Practical Dictionary of the English Language
  4. ^ Cite error: The named reference springer was invoked but never defined (see the help page).
  5. ^ a b c d e Cite error: The named reference lcdb was invoked but never defined (see the help page).
  6. ^ Cite error: The named reference Ferret was invoked but never defined (see the help page).
  7. ^ "Phocæan". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
  8. ^ a b c d Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
  9. ^ Cite error: The named reference Marchis-2006c was invoked but never defined (see the help page).
  10. ^ a b c Cite error: The named reference SIMPS was invoked but never defined (see the help page).
  11. ^ a b c Cite error: The named reference Carry-2012 was invoked but never defined (see the help page).
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  13. ^ a b c Cite error: The named reference AKARI was invoked but never defined (see the help page).
  14. ^ a b Cite error: The named reference geneva-obs was invoked but never defined (see the help page).
  15. ^ Cite error: The named reference Pilcher-2011e was invoked but never defined (see the help page).
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  17. ^ Cite error: The named reference Buchheim-2007b was invoked but never defined (see the help page).
  18. ^ Cite error: The named reference Groeneveld-1954a was invoked but never defined (see the help page).
  19. ^ Cite error: The named reference Belskaya-2017 was invoked but never defined (see the help page).
  20. ^ Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).