59 Elpis

59 Elpis

Elpidian orbital characteristics [ftp://ftp.lowell.edu/pub/elgb/astorb.html 1]
Orbit type	Main belt
Semimajor axis	2.713 AU
Perihelion distance	2.392 AU
Aphelion distance	3.034 AU
Orbital period	4.47 years
Inclination	8.64°
Eccentricity	0.118
Elpidian physical characteristics [ftp://ftp.lowell.edu/pub/elgb/astorb.html 1]
Diameter	164.8 km
Rotation period 3	13.69 hours
Spectral class	C
Abs. magnitude	7.93
Albedo 4	0.044
History 2
Discoverer	J. Chacornac, 1860

59 Elpis (el'-pis) is a very large main belt asteroid. Being a C-type asteroid it is very dark and carbonaceous.

Elpis was discovered by J. Chacornac on September 12, 1860. It was his sixth and final asteroid discovery. It is named after Elpis, a personification of hope in Greek mythology.

Aspects

retrograde ¦¦ Opposition>	Distance to Earth (AU)	Maximum brightness (mag)	Stationary, prograde	Conjunction to Sun
7 December 2004	26 January 2005	1.78712	11.7	14 March 2005	14 September 2005
1 March 2006	19 April 2006	2.03223	12.2	13 June 2006	3 December 2006
5 June 2007	24 July 2007	1.61213	11.4	8 September 2007	24 March 2008
22 October 2008	6 December 2008	1.53052	11.3	21 January 2009	3 August 2009
23 January 2010	14 March 2010	1.99587	11.9	4 May 2010	26 October 2010
15 April 2011	4 June 2011	1.88041	12.0	28 July 2011	24 January 2012
22 August 2012	3 October 2012	1.39483	10.8	14 November 2012	9 June 2013
13 December 2013	2 February 2014	1.82075	11.8	21 March 2014	19 September 2014
7 March 2015	25 April 2015	2.02460	12.2	19 June 2015	9 December 2015
12 June 2016	31 July 2016	1.57133	11.3	14 September 2016	3 April 2017
29 October 2017	15 December 2017	1.56610	11.4	30 January 2018	9 August 2018
29 January 2019	19 March 2019	2.01038	11.9	10 May 2019	1 November 2019
21 April 2020	10 June 2020	1.84768	11.9	2 August 2020	31 January 2021

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