2903 Zhuhai

2903 Zhuhai
Discovery
Discovered by	Purple Mountain Obs.
Discovery site	Purple Mountain Obs.
Discovery date	23 October 1981
Designations
MPC designation	(2903) Zhuhai
Named after	Zhuhai (Chinese city)
Alternative designations	1981 UV9 · 1955 MC; 1973 UK4 · 1975 GC; 1977 TN7 · 1977 VL2
Minor planet category	main-belt · (middle); background · Maria
Orbital characteristics
	Epoch 23 March 2018 (JD 2458200.5)
	Uncertainty parameter 0
Observation arc	62.44 yr (22,808 d)
Aphelion	2.7128 AU
Perihelion	2.4104 AU
Semi-major axis	2.5616 AU
Eccentricity	0.0590
Orbital period (sidereal)	4.10 yr (1,497 d)
Mean anomaly	236.34°
Mean motion	0° 14m 25.44s / day
Inclination	14.350°
Longitude of ascending node	232.57°
Argument of perihelion	243.97°
Physical characteristics
Mean diameter	13.58±0.90 km; 13.581±0.896 km; 14.01±0.86 km
Synodic rotation period	5.263±0.002 h; 5.268±0.003 h; 6.152 h
Geometric albedo	0.146±0.020; 0.20 (assumed); 0.276±0.141
Spectral type	S
Absolute magnitude (H)	11.35; 11.60±0.40; 11.7; 12.00

2903 Zhuhai, provisional designation 1981 UV₉, is a stony background or Marian asteroid from the central regions of the asteroid belt, approximately 14 kilometers (8.7 miles) in diameter. It was discovered on 23 October 1981, by astronomers at Purple Mountain Observatory near Nanjing, China.^[1] The S-type asteroid has a rotation period of 5.26 hours.^[10] It was named for the Chinese city of Zhuhai.^[1]

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^ ^a ^b ^c ^d Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).
^ ^a ^b ^c Cite error: The named reference AKARI was invoked but never defined (see the help page).
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[MPC-object-1] Cite error: The named reference MPC-object was invoked but never defined (see the help page).

[jpldata-2] Cite error: The named reference jpldata was invoked but never defined (see the help page).

[Ferret-3] Cite error: The named reference Ferret was invoked but never defined (see the help page).

[Alvarez-2004-4] Cite error: The named reference Alvarez-2004 was invoked but never defined (see the help page).

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

[Masiero-2012-6] Cite error: The named reference Masiero-2012 was invoked but never defined (see the help page).

[AKARI-7] Cite error: The named reference AKARI was invoked but never defined (see the help page).

[Moravec-2012-8] Cite error: The named reference Moravec-2012 was invoked but never defined (see the help page).

[Bin-2011-9] Cite error: The named reference Bin-2011 was invoked but never defined (see the help page).

[lcdb-10] Cite error: The named reference lcdb was invoked but never defined (see the help page).

[Veres-2015-11] Cite error: The named reference Veres-2015 was invoked but never defined (see the help page).

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2903 Zhuhai

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