79 Eurynome

79 Eurynome
	A three-dimensional model of 79 Eurynome based on its light curve.
Discovery
Discovered by	James Craig Watson
Discovery date	September 14, 1863
Designations
MPC designation	(79) Eurynome
Pronunciation	/jʊˈrɪnəmiː/[1]
Named after	Eurynome
Minor planet category	Main belt
Adjectives	Eurynomean,[2] Eurynomian
Orbital characteristics
	Epoch December 31, 2006 (JD 2454100.5)
Aphelion	435.949 Gm (2.914 AU)
Perihelion	295.538 Gm (1.976 AU)
Semi-major axis	365.743 Gm (2.445 AU)
Eccentricity	0.192
Orbital period (sidereal)	1396.288 d (3.82 a)
Average orbital speed	18.87 km/s
Mean anomaly	149.498°
Inclination	4.622°
Longitude of ascending node	206.802°
Argument of perihelion	200.384°
Physical characteristics
Dimensions	66.5 km
Synodic rotation period	5.978 h
Geometric albedo	0.262[3]
Spectral type	S
Apparent magnitude	9.35 (brightest)
Absolute magnitude (H)	7.96

Eurynome (minor planet designation: 79 Eurynome) is a quite large and bright main-belt asteroid composed of silicate rock. Eurynome was discovered by J. C. Watson on September 14, 1863. It was his first asteroid discovery and is named after one of the many Eurynomes in Greek mythology. It is orbiting the Sun with a period of 3.82 years and has a rotation period of six hours. This is the eponymous member of a proposed asteroid family with at least 43 members, including 477 Italia and 917 Lyka.[4]

References

Noah Webster (1884) A Practical Dictionary of the English Language
Barreto & de Sena (1980) The Poetry of Jorge de Sena, p. 156
Asteroid Data Sets Archived 2009-12-17 at the Wayback Machine
Bendjoya, P. (November 1993), "A Classification of 6479 Asteroids Into Families by Means of the Wavelet Clustering Method", Astronomy and Astrophysics Supplement, 102 (1): 25, Bibcode:1993A&AS..102...25B.

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