75 Eurydike

75 Eurydike is a large main-belt asteroid. It has an M-type spectrum and a relatively high albedo and may be rich in nickel-iron.^[5] Eurydike was discovered by German-American astronomer C. H. F. Peters on September 22, 1862. It was second of his numerous asteroid discoveries and is named after Eurydice, the wife of Orpheus. The asteroid is orbiting the Sun for a period of 4.37 years and completes a rotation about its axis every 5.4 hours.

DiscoveredbyChristian Heinrich Friedrich Peters

DiscoverydateSeptember 22, 1862

MPCdesignation

(75) Eurydike

Pronunciation/jʊˈrɪdɪkiː/^[1]

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75 Eurydike

Orbital diagram
Discovery
Discovered by	Christian Heinrich Friedrich Peters
Discovery date	September 22, 1862
Designations
MPC designation	(75) Eurydike
Pronunciation	/jʊˈrɪdɪkiː/[1]
Named after	Eurydice
Minor planet category	Main belt
Adjectives	Eurydikean /ˌjʊərɪdɪˈkiːən/
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
Aphelion	521.874 million km (3.489 AU)
Perihelion	278.028 million km (1.858 AU)
Semi-major axis	399.951 million km (2.674 AU)
Eccentricity	0.305
Orbital period (sidereal)	1596.687 d (4.37 a)
Average orbital speed	17.79 km/s
Mean anomaly	26.318°
Inclination	5.002°
Longitude of ascending node	359.481°
Argument of perihelion	339.566°
Physical characteristics
Dimensions	62.377 ± 1.603 km[2]
Mass	(4.46 ± 2.06/1.06)×1017 kg[3]
Mean density	3.511 ± 1.618/0.837 g/cm3[3]
Synodic rotation period	5.357 h[2]
Geometric albedo	0.149[4]
Spectral type	M[5]
Absolute magnitude (H)	9.29[2]

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