29 Amphitrite

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**29 Amphitrite**
Orbital characteristics ¹
Orbit type	Main belt
Semimajor axis	2.555 AU
Perihelion distance	2.372 AU
Aphelion distance	2.737 AU
Orbital period	4.08 years
Inclination	6.10°
Eccentricity	0.071
Physical characteristics ¹
Diameter	212.2 km
Rotation period ³	5.39 hours
Spectral class	S
Abs. magnitude	5.85
Albedo ⁴	0.179
History ²
Discoverer	A. Marth, 1854

29 Amphitrite (am'-fi-trye'-tee) is one of the largest Main belt asteroids. It has a relatively bright surface and a composition of silicates rock and iron-nickel metals.

Amphitrite was discovered by Albert Marth on March 1, 1854. It was his only asteroid discovery. It is named after Amphitrite, a sea goddess in Greek mythology.

A satellite has been suggested based on the lightcurve data. [1]

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Aspects

Stationary, retrograd	Opposition	Distance to Earth	Maximum brightness	Stationary, prograde	Conjunction to Sun
February 7th, 2005	March 30th, 2005	1,66907AU	9,2 mag	May 19th, 2005	November 22nd, 2005
May 25th, 2006	July 12th, 2006	1,65122AU	9,4 mag	September 1st, 2006	March 7th, 2007
October 2nd, 2007	November 18th, 2007	1,38949AU	8,8 mag	December 30th 2007	July 26th 2008
January 30th, 2009	March 21st, 2009	1,64688AU	9,1 mag	May 11th, 2009	November 14th, 2009
May 16th, 2010	July 3rd, 2010	1,67434AU	9,4 mag	August 22nd, 2010	February 25th, 2011
September 19th, 2011	November 6th, 2011	1,39018AU	8,7 mag	December 19th, 2011	July 15th, 2012
January 22nd, 2013	March 12th, 2013	1,62243AU	9,1 mag	May 2nd, 2013	November 6th, 2013
May 6th, 2014	June 24th, 2014	1,69407AU	9,5 mag	August 13th, 2014	February 15th, 2015
September 7th, 2015	October 25th, 2015	1,39680AU	8,7 mag	December 8th, 2015	July 3rd, 2016
January 14th, 2017	March 3rd, 2017	1,59637AU	9,1 mag	April 23rd, 2017	October 29th, 2017
April 27th, 2018	June 16th, 2018	1,71002AU	9,5 mag	August 4th, 2018	February 6th, 2019
August 27th, 2019	October 14th, 2019	1,40915AU	8,7 mag	November 28th, 2019	June 21st, 2020