NationMaster - Encyclopedia: 71 Niobe

**71 Niobe**
Orbital characteristics ^{1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)}
Orbit type	Main belt
Semimajor axis	2.755 AU
Perihelion distance	2.270 AU
Aphelion distance	3.240 AU
Orbital period	4.57 years
Inclination	23.26�
Eccentricity	0.176
Physical characteristics ^{1 (ftp://ftp.lowell.edu/pub/elgb/astorb.html)}
Diameter	83.4 km
Rotation period ^{3 (http://charlie.psi.edu/pds/)}	14.38 hours
Spectral class	S
Albedo ^{4 (http://dorothy.as.arizona.edu/DSN/IRAS/index_iras.html)}	0.305
Abs. magnitude	7.30
History ^{2 (http://cfa-www.harvard.edu/iau/lists/NumberedMPs.html)}
Discoverer	R. Luther, 1861

71 Niobe is a quite large main belt asteroid. It has very bright surface and is probably a mixture of iron_nickel and silicate rock.

It was discovered by Robert Luther on August 13, 1861 and named after Niobe, a character in Greek mythology.

Categories: Astronomy stubs | Main Belt asteroids

Results from FactBites:

71 Niobe (66 words)
	71 Niobe is a quite large main belt asteroid.
	It has very bright surface and is probably a mixture of iron-nickel and silicate rock.
	It was discovered by Robert Luther on August 13, 1861 and named after Niobe, a character in Greek mythology.

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