2063 Bacchus information

2063 Bacchus
Discovery
Discovered by	C. Kowal
Discovery site	Palomar Obs.
Discovery date	24 April 1977
Designations
MPC designation	(2063) Bacchus
Pronunciation	/ˈbækəs/ BAK-əs
Named after	Bacchus (Dionysus in Greek); (Roman god)
Alternative designations	1977 HB
Minor planet category	NEO · Apollo ; Venus-crosser
Adjectives	Bacchian /ˈbækiən/
Symbol	(astrological)
Orbital characteristics
	Epoch 4 September 2017 (JD 2458000.5)
	Uncertainty parameter 0
Observation arc	39.10 yr (14,282 days)
Aphelion	1.4545 AU
Perihelion	0.7013 AU
Semi-major axis	1.0779 AU
Eccentricity	0.3494
Orbital period (sidereal)	1.12 yr (409 days)
Mean anomaly	113.13°
Mean motion	0° 52m 50.52s / day
Inclination	9.4331°
Longitude of ascending node	33.103°
Argument of perihelion	55.315°
Earth MOID	0.0677 AU · 26.4 LD
Physical characteristics
Dimensions	1.11 km × 0.53 km × 0.50 km; 2.6 km × 1.1 km × 1.1 km
Mean diameter	0.63 km (Deff); 1.03±0.03 km; 1.05 km (derived)
Synodic rotation period	14.544±0.007 h; 14.904 h; 15.0±0.2 h
Geometric albedo	0.19±0.03; 0.20 (assumed); 0.33+0.25; −0.11 (radar); 0.56+0.12; −0.18 (visual)
Spectral type	SMASS = Sq · S
Absolute magnitude (H)	17.3

2063 Bacchus, provisional designation 1977 HB, is a stony asteroid and near-Earth object of the Apollo group, approximately 1 kilometer in diameter. The contact binary was discovered on 24 April 1977, by American astronomer Charles Kowal at the Palomar Observatory in California, United States. It was named after Bacchus from Roman mythology.^[2]^[1]

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^ "Bacchian". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)
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[4] "Bacchian". Oxford English Dictionary (Online ed.). Oxford University Press. (Subscription or participating institution membership required.)

[Benner-1999-5] Cite error: The named reference Benner-1999 was invoked but never defined (see the help page).

[Nugent-2016-6] Cite error: The named reference Nugent-2016 was invoked but never defined (see the help page).

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[Pravec-1998b-9] Cite error: The named reference Pravec-1998b was invoked but never defined (see the help page).

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