(71) Niobe

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Asteroid
(71) Niobe
Properties of the orbit ( animation )
Orbit type Main belt asteroid
Major semi-axis 2.755  AU
eccentricity 0.176
Perihelion - aphelion 2.271 AU - 3.239 AU
Inclination of the orbit plane 23.3 °
Length of the ascending node 316.1 °
Argument of the periapsis 267.1 °
Time of passage of the perihelion May 22, 2011
Sidereal period 4 a 210 d
Mean orbital velocity 17.8 km / s
Physical Properties
Medium diameter 83 km
Albedo 0.31
Rotation period 35.8 h
Absolute brightness 7.3 likes
Spectral class S.
history
Explorer KTR Luther
Date of discovery August 13, 1861
Source: Unless otherwise stated, the data comes from JPL Small-Body Database Browser . The affiliation to an asteroid family is automatically determined from the AstDyS-2 database . Please also note the note on asteroid items.

(71) Niobe is an asteroid of the main belt that was discovered on August 13, 1861 by the German astronomer Karl Theodor Robert Luther .

It was named after Niobe , a daughter of Tantalus and Dione .

Aspects

The values ​​are not very precise and are only indicative.

Stationary, then retrograde opposition Opposition distance (AE) Opposition brightness (mag) Stationary, then clockwise Conjunction with the sun
October 2, 2004 November 28, 2004 2.30546 12.1 January 11, 2005 July 6, 2005
December 26, 2005 February 18, 2006 1.55055 10.5 April 11, 2006 November 10, 2006
June 2, 2007 July 25, 2007 1.56069 10.6 September 15, 2007 March 6, 2008
August 11, 2008 October 17, 2008 2.30755 12.1 November 29, 2008 May 21, 2009
November 9, 2009 December 30, 2009 2.04579 11.6 February 21, 2010 August 16, 2010
February 26, 2011 April 23, 2011 1.40423 10.4 May 24, 2011 January 14, 2012
July 1, 2012 3rd September 2012 1.92930 11.4 October 24, 2012 April 7, 2013
18th September 2013 17th November 2013 2.34605 12.1 December 30, 2013 June 24, 2014
December 13, 2014 4th February 2015 1.66624 10.6 March 31, 2015 15th October 2015
19th May 2016 July 6, 2016 1.47293 10.5 August 24, 2016 3rd February 2017

See also