40 Harmonia
| Orbital characteristics 1 | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.267 AU |
| Perihelion distance | 2.161 AU |
| Aphelion distance | 2.374 AU |
| Orbital period | 3.41 years |
| Inclination | 4.26° |
| Eccentricity | 0.047 |
| Physical characteristics 1 | |
| Diameter | 107.6 km |
| Rotation period 3 | 8.91 hours |
| Spectral class | S |
| Abs. magnitude | 7.00 |
| Albedo 4 | 0.242 |
| History 2 | |
| Discoverer | H. Goldschmidt, 1856 |
40 Harmonia (har-moe'-nee-ə (key)) is a large main belt asteroid.
It was discovered by H. Goldschmidt on March 31, 1856 and named after Harmonia, the Greek goddess of harmony. The name was chosen to mark the end of the Crimean War.
Aspects
| Stationary, retrograde |
Opposition | Distance to Earth (AU) |
Maximum brightness (mag) |
Stationary, prograde |
Conjunction to Sun |
|---|---|---|---|---|---|
| 1 July 2005 | 24 January 2006 | 1.37857 | 9.9 | 9 March 2006 | 26 April 2006 |
| 18 November 2006 | 22 June 2007 | 1.18799 | 9.3 | 3 August 2007 | 16 September 2007 |
| 23 April 2008 | 29 November 2008 | 1.31263 | 9.6 | 12 January 2009 | 26 February 2009 |
| 24 September 2009 | 13 April 2010 | 1.29576 | 9.6 | 29 May 2010 | 16 July 2010 |
| 13 February 2011 | 29 September 2011 | 1.20417 | 9.4 | 12 November 2011 | 27 December 2011 |
| 27 July 2012 | 16 February 2013 | 1.37531 | 9.9 | 31 March 2013 | 20 May 2013 |
| 12 December 2013 | 23 July 2014 | 1.16610 | 9.3 | 2 September 2014 | 17 October 2014 |
| 24 May 2015 | 24 December 2015 | 1.35109 | 9.7 | 6 February 2016 | 23 March 2016 |
| 17 October 2016 | 10 May 2017 | 1.24619 | 9.3 | 24 June 2017 | 9 August 2017 |
| 13 March 2018 | 25 October 2018 | 1.24779 | 9.4 | 9 December 2018 | 22 January 2019 |
| 22 August 2019 | 10 March 2020 | 1.35237 | 9.8 | 24 April 2020 | 13 June 2020 |
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