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322 Phaeo

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(Redirected fromPhaeo)
Main-belt asteroid

322 Phaeo
Orbital diagram
Discovery [1]
Discovered byA. Borrelly
Discovery siteMarseille Obs.
Discovery date27 November 1891
Designations
(322) Phaeo
Pronunciation/ˈfiːoʊ/[2]
Named after
ΦαιώPhaiō[3]
(Greek mythology)
main-belt [1][4] · (middle)
Phaeo [5][6]
AdjectivesPhaeoian/fiːˈoʊ.iən/
Orbital characteristics [4]
Epoch 23 March 2018 (JD 2458200.5)
Uncertainty parameter 0
Observation arc126.48yr (46,198 d)
Aphelion3.4656AU
Perihelion2.0960 AU
2.7808 AU
Eccentricity0.2463
4.64 yr (1,694 d)
110.49°
0° 12m 45s / day
Inclination8.0544°
252.36°
115.00°
Physical characteristics
69.855±0.320 km[7]
71.88 ± 4.32 km[8]
Mass(1.86 ± 0.04) × 1018 kg[8]
9.56 ± 1.73 g/cm3[8]
17.5845±0.0001 h[9]
0.089±0.014[7]
Tholen =X [4]
SMASS =X [4]
B–V = 0.719[4]
U–B = 0.230[4]
9.01[4]

322 Phaeo is anasteroid from the central regions of theasteroid belt, approximately 70 kilometers (43 miles) in diameter. It was discovered on 27 November 1891, by French astronomerAlphonse Borrelly at theMarseille Observatory in southern France.[1] The presumably metallicX-type asteroid is the principal body of thePhaeo family and has arotation period of 17.6 hours. It was named for theGreek mythological figure Phaeo, one of theHyades ornymphs. Several other asteroids were named for other of the Hyades –193 Ambrosia,158 Koronis,217 Eudora, and308 Polyxo.[10]

References

[edit]
  1. ^abc"322 Phaeo".Minor Planet Center. Retrieved12 July 2018.
  2. ^As in"phæochrome".Oxford English Dictionary (Online ed.).Oxford University Press. (Subscription orparticipating institution membership required.)
  3. ^Schmadel, Lutz D. (2007). "(322) Phaeo".Dictionary of Minor Planet Names. Springer Berlin Heidelberg. p. 42.doi:10.1007/978-3-540-29925-7_323.ISBN 978-3-540-00238-3.
  4. ^abcdefg"JPL Small-Body Database Browser: 322 Phaeo" (2018-05-25 last obs.).Jet Propulsion Laboratory. Retrieved12 July 2018.
  5. ^"Asteroid 322 Phaeo".Small Bodies Data Ferret. Retrieved12 July 2018.
  6. ^Nesvorný, D.; Broz, M.; Carruba, V. (December 2014). "Identification and Dynamical Properties of Asteroid Families".Asteroids IV. pp. 297–321.arXiv:1502.01628.Bibcode:2015aste.book..297N.doi:10.2458/azu_uapress_9780816532131-ch016.ISBN 9780816532131.
  7. ^abMasiero, Joseph R.; Grav, T.; Mainzer, A. K.; Nugent, C. R.; Bauer, J. M.; Stevenson, R.; et al. (August 2014). "Main-belt Asteroids with WISE/NEOWISE: Near-infrared Albedos".The Astrophysical Journal.791 (2): 11.arXiv:1406.6645.Bibcode:2014ApJ...791..121M.doi:10.1088/0004-637X/791/2/121.
  8. ^abcCarry, B. (December 2012), "Density of asteroids",Planetary and Space Science,73 (1):98–118,arXiv:1203.4336,Bibcode:2012P&SS...73...98C,doi:10.1016/j.pss.2012.03.009 See Table 1.
  9. ^"LCDB Data for (322) Phaeo". Asteroid Lightcurve Database (LCDB). Retrieved12 July 2018.
  10. ^Lutz D. Schmadel,Dictionary of Minor Planet Names, p. 42. Springer,ISBN 3-540-00238-3.

External links

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