10 Hygiea

10 Hygiea ()
	; Animated orbit o Hygiea relative tae the orbits o the terrestrial planets an Jupiter.
Discovery
Discovered bi	A. de Gasparis
Discovery date	Aprile 12, 1849
Designations
Pronunciation	/haɪˈdʒiːə/ hy-JEE-ə
Named after	Hygieia
Alternative names	none
Minor planet category	Main belt (Hygiea family)
Adjectives	Hygiean
Orbital chairactereestics
	Epoch November 30, 2008 (JD 2454800.5)
Aphelion	3.507 AU; (524.63 Gm) (Q)
Perihelion	2.770 AU; (414.38 Gm) (q)
Semi-major axis	3.139 AU; (469.58 Gm)
Eccentricity	0.117
Orbital period	5.56 yr; (2031.01 d)
Average orbital speed	16.76 km/s
Mean anomaly	197.96° (M)
Inclination	3.842°
Longitude o ascendin node	283.45°
Argument o perihelion	313.19°
Proper orbital elements
Proper semi-major axis	3.1417827 AU
Proper eccentricity	0.1356315
Proper inclination	5.1039060°
Proper mean motion	64.621768 deg / yr
Proper orbital period	5.57088 yr; (2034.763 d)
Precession o perihelion	128.543611 arcsec / yr
Precession of the ascending node	−96.902395 arcsec / yr
Pheesical chairacteristics
Dimensions	530×407×370 ±7 km; 431 km (mean)
Surface area	837,080.744 km2 (323,198.682 sq mi)
Mass	(8.67 ±0.15)×1019 kg
Mean density	2.08 ± 0.10 g/cm³
Surface gravity	0.091 m/s²
Escape velocity	0.21 km/s
Rotation period	27.623 h (1.15 d)
Albedo	0.0717 (geometric)
Temperatur	≈164 K; max: 247 K (−26°C)
Spectral teep	C-type asteroid
Apparent magnitude	9.0 to 11.97
Absolute magnitude (H)	5.43
Angular diameter	0.321″ tae 0.133″

10 Hygiea is the fowert lairgest asteroid in the Solar Seestem bi volume an mass, an it is locatit in the asteroid belt.

References eedit

↑ ^a ^b ^c ^d ^e "JPL Small-Body Database Browser: 10 Hygiea". Retrieved 7 September 2008.
↑ "AstDyS-2 Hygiea Synthetic Proper Orbital Elements". Department of Mathematics, University of Pisa, Italy. Retrieved 1 October 2011.
↑ ^a ^b ^c Jim Baer (2010). "Recent Asteroid Mass Determinations". Personal Website. Archived frae the original on 21 October 2013. Retrieved 2 September 2011.
↑ L.F. Lim; McConnochie, T; Belliii, J; Hayward, T (2005). "Thermal infrared (8–13 µm) spectra of 29 asteroids: the Cornell Mid-Infrared Asteroid Spectroscopy (MIDAS) Survey". Icarus. 173 (2): 385. Bibcode:2005Icar..173..385L. doi:10.1016/j.icarus.2004.08.005.
↑ "AstDys (10) Hygiea Ephemerides". Department of Mathematics, University of Pisa, Italy. Retrieved 26 Juin 2010.

Discovery
Animated orbit o Hygiea relative tae the orbits o the terrestrial planets an Jupiter.
Discovered bi	A. de Gasparis
Discovery date	Aprile 12, 1849
Designations
Pronunciation	/haɪˈdʒiːə/ hy-JEE-ə
Named after	Hygieia
Alternative names	none
Minor planet category	Main belt (Hygiea family)
Adjectives	Hygiean
Orbital chairactereestics^[1]
Epoch November 30, 2008 (JD 2454800.5)
Aphelion	3.507 AU (524.63 Gm) (Q)
Perihelion	2.770 AU (414.38 Gm) (q)
Semi-major axis	3.139 AU (469.58 Gm)
Eccentricity	0.117
Orbital period	5.56 yr (2031.01 d)
Average orbital speed	16.76 km/s
Mean anomaly	197.96° (M)
Inclination	3.842°
Longitude o ascendin node	283.45°
Argument o perihelion	313.19°
Proper orbital elements^[2]
Proper semi-major axis	3.1417827 AU
Proper eccentricity	0.1356315
Proper inclination	5.1039060°
Proper mean motion	64.621768 deg / yr
Proper orbital period	5.57088 yr (2034.763 d)
Precession o perihelion	128.543611 arcsec / yr
Precession of the ascending node	−96.902395 arcsec / yr
Pheesical chairacteristics
Dimensions	530×407×370 ±7 km^[3] 431 km (mean)
Surface area	837,080.744 km² (323,198.682 sq mi)
Mass	(8.67 ±0.15)×10¹⁹ kg^[3]
Mean density	2.08 ± 0.10 g/cm³^[3]
Surface gravity	0.091 m/s²
Escape velocity	0.21 km/s
Rotation period	27.623 h (1.15 d)^[1]
Albedo	0.0717 (geometric)^[1]
Temperatur	≈164 K max: 247 K (−26°C) ^[4]
Spectral teep	C-type asteroid^[1]
Apparent magnitude	9.0^[5] to 11.97
Absolute magnitude (H)	5.43^[1]
Angular diameter	0.321″ tae 0.133″