322 Phaeo information

322 Phaeo
	Orbital diagram
Discovery
Discovered by	A. Borrelly
Discovery site	Marseille Obs.
Discovery date	27 November 1891
Designations
MPC designation	(322) Phaeo
Pronunciation	/ˈfiːoʊ/
Named after	Φαιώ Phaiō; (Greek mythology)
Minor planet category	main-belt · (middle); Phaeo
Adjectives	Phaeoian /fiːˈoʊ.iən/
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 0
Observation arc	126.48 yr (46,198 d)
Aphelion	3.4656 AU
Perihelion	2.0960 AU
Semi-major axis	2.7808 AU
Eccentricity	0.2463
Orbital period (sidereal)	4.64 yr (1,694 d)
Mean anomaly	110.49°
Mean motion	0° 12m 45s / day
Inclination	8.0544°
Longitude of ascending node	252.36°
Argument of perihelion	115.00°
Physical characteristics
Mean diameter	69.855±0.320 km; 71.88 ± 4.32 km
Mass	(1.86 ± 0.04) × 1018 kg
Mean density	9.56 ± 1.73 g/cm3
Synodic rotation period	17.5845±0.0001 h
Geometric albedo	0.089±0.014
Spectral type	Tholen = X ; SMASS = X ; B–V = 0.719; U–B = 0.230
Absolute magnitude (H)	9.01

Phaeo (minor planet designation: 322 Phaeo) is an asteroid from the central regions of the asteroid belt, approximately 70 kilometers (43 miles) in diameter. It was discovered on 27 November 1891, by French astronomer Alphonse Borrelly at the Marseille Observatory in southern France.^[1] The presumably metallic X-type asteroid is the principal body of the Phaeo family and has a rotation period of 17.6 hours. It was named for the Greek mythological figure Phaeo, one of the Hyades or nymphs. Several other asteroids were named for other of the Hyades – 106 Dione, 158 Koronis, 217 Eudora, and 308 Polyxo.^[10]

^ ^a ^b ^c Cite error: The named reference MPC-object was invoked but never defined (see the help page).
^ As in "phæochrome". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
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^ Lutz D. Schmadel, Dictionary of Minor Planet Names, p. 42. Springer, ISBN 3-540-00238-3.

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[2] As in "phæochrome". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)

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[Carry2012-8] Cite error: The named reference Carry2012 was invoked but never defined (see the help page).

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[10] Lutz D. Schmadel, Dictionary of Minor Planet Names, p. 42. Springer, ISBN 3-540-00238-3.

322 Phaeo information

and 8 Related for: 322 Phaeo information

322 Phaeo

Alphonse Borrelly

Asteroid family

321 Florentina

323 Brucia

472 Roma

1410s

Interglossa