354 Eleonora

**354 Eleonora**
Discovery ^A

Discoverer	Auguste Charlois
Discovery date	January 17, 1893
Alternate designations ^B	1893 A
Category	Main belt
Orbital elements ^C
Epoch 30 January 2005 (JD 2453400.5)
Eccentricity (e)	0.113
Semi-major axis (a)	418.701 G m (2.799 AU)
Perihelion (q)	371.553 Gm (2.484 AU)
Aphelion (Q)	465.848 Gm (3.114 AU)
Orbital period (P)	1710.242 d (4.68 a)
Mean orbital speed	17.8 km/s
Inclination (i)	18.385°
Longitude of the ascending node (Ω)	140.51°
Argument of perihelion (ω)	6.994°
Mean anomaly (M)	317.966°
Physical characteristics ^D
Dimensions	155.0 km
Mass	unknown
Density	unknown
Surface gravity	unknown
Escape velocity	unknown
Rotation period	unknown
Spectral class	S
Absolute magnitude	6.44
Albedo (geometric)	unknown
Mean surface temperature	unknown
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354 Eleonora is a very large Main belt asteroid. It is classified as an S-type asteroid.

[edit] Aspects

Stationary, than retrograde	Opposition	Distance to earth	Brightness	Stationary, than prograde	Conjunction to sun
1st November 2004	19th December 2004	1,68591 AE	10,1 mag	6th February 2005	21st August 2005
11th March 2006	19th April 2006	1,69549 AE	10,2 mag	13th June 2006	15th December 2006
2nd June 2007	26th July 2007	2,06934 AE	10,7 mag	15th September 2007	27th February 2008
29th August 2008	10th October 2008	2,02439 AE	10,7 mag	6th December 2008	27th May 2009
11th December 2009	25th January 2010	1,52450 AE	9,6 mag	9th March 2010	1st October 2010
9th April 2011	26th May 2011	1,86368 AE	10,5 mag	20th July 2011	10th January 2012
28th June 2012	18th August 2012	2,10161 AE	10,6 mag	9th October 2012	22nd March 2013
27th September 2013	9th November 2013	1,89929 AE	10,5 mag	4th January 2014	5th July 2014
27th January 2015	5th March 2015	1,51977 AE	9,6 mag	20th April 2015	9th November 2015
3th May 2016	26th June 2016	1,98463 AE	10,7 mag	17th August 2016	1st February 2017
27th July 2017	11th September 2017	2,09346 AE	10,8 mag	5th November 2017	19th April 2018
28th October 2018	14th December 2018	1,71530 AE	10,2 mag	1st February 2019	15th August 2019
7th March 2020	13th April 2020	1,66847 AE	10,1 mag	6th June 2020	10th December 2020

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