NationMaster - Encyclopedia: 86 Semele

**86 Semele**
Orbital characteristics ^{1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)}
Orbit type	Main belt
Semimajor axis	3.121 AU
Perihelion distance	2.483 AU
Aphelion distance	3.759 AU
Orbital period	5.51 years
Inclination	4.80�
Eccentricity	0.204
Physical characteristics ^{1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)}
Diameter	120.6 km
Rotation period ^{3 (http://charlie.psi.edu/pds/)}	16.634 hours
Spectral class	C
Abs. magnitude	8.54
Albedo ^{4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html)}	0.044
History ^{2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)}
Discoverer	F. Tietjen, 1866

86 Semele is a large and very dark main belt asteroid. It is probably composed of carbonates.

Semele was discovered by German astronomer Friedrich Tietjen on January 4, 1866. It was his first and only asteroid discovery. It is named after Semele, the mother of Dionysus in Greek mythology.

Categories: Stub | Main Belt asteroids

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