103 Hera - Definition

**103 Hera**
Orbital characteristics ^{1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)}
Orbit type	Main belt
Semimajor axis	2.704 AU
Perihelion distance	2.490 AU
Aphelion distance	2.918 AU
Orbital period	4.45 years
Inclination	5.42°
Eccentricity	0.079
Physical characteristics ^{1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)}
Diameter	91.2 km
Rotation period	23.74 hours
Spectral class	S
Abs. magnitude	7.66
Albedo ^{4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html)}	0.183
History ^{2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)}
Discoverer	J. C. Watson, 1868

103 Hera is a large main belt asteroid. It has probably a composition of metallic nickel-iron and silicates.

It was discovered by J. C. Watson on September 7, 1868 and named after Hera, queen of the gods in Greek mythology.

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