71 Niobe

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71 Niobe

Orbital characteristics 1
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
Diameter	83.4 km
Rotation period 3	14.38 hours
Spectral class	S
Albedo 4	0.305
Abs magnitude	7.30
History 2
Discoverer	R Luther, 1861

71 Niobe (nye'-o-bee) is a quite large main belt asteroid.

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

[edit] Aspects

Stationary, then retrograde	Opposition	Distance at opposition	Brightness at opposition (mag)	Stationary, then prograde	Conjunction to sun
2 October 2004	28 November 2004	2.30546 AU	12.1 mag	11 January 2005	6 July 2005
26 December 2005	18 February 2006	1.55055 AU	10.5 mag	11 April 2006	10 November 2006
2 June 2007	25 July 2007	1.56069 AU	10.6 mag	15 September 2007	6 March 2008
11 August 2008	17 October 2008	2.30755 AU	12.1 mag	29 November 2008	21 May 2009
9 November 2009	30 December 2009	2.04579 AU	11.6 mag	21 February 2010	16 August 2010
26 February 2011	23 April 2011	1.40423 AU	10.4 mag	24 May 2011	14 January 2012
1 July 2012	3 September 2012	1.92930 AU	11.4 mag	24 October 2012	7 April 2013
18 September 2013	17 November 2013	2.34605 AU	12.1 mag	30 December 2013	24 June 2014
13 December 2014	4 February 2015	1.66624 AU	10.6 mag	31 March 2015	15 October 2015
19 May 2016	6 July 2016	1.47293 AU	10.5 mag	24 August 2016	23 February 2017
31 July 2017	6 October 2017	2.24228 AU	12.0 mag	21 November 2017	10 May 2018
28 October 2018	19 December 2018	2.15522 AU	11.8 mag	7 February 2019	1 August 2019
30 January 2020	27 March 2020	1.41986 AU	10.4 mag	6 May 2020	26 December 2020

Minor planets
Previous minor planet	71 Niobe	Next minor planet

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For other objects and regions, see: asteroid groups and families, binary asteroids, asteroid moons and the Solar system For a complete listing, see: List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.