60 Echo
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| Discovery | |
|---|---|
| Discovered by: | James Ferguson |
| Discovery date: | September 14, 1860 |
| Alternative names: | |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 423.339 Gm (2.830 AU) |
| Perihelion distance: | 292.951 Gm (1.958 AU) |
| Semi-major axis: | 358.145 Gm (2.394 AU) |
| Eccentricity: | 0.182 |
| Orbital period: | 1353.002 d (3.70 a) |
| Avg. orbital speed: | 19.09 km/s |
| Mean anomaly: | 91.065° |
| Inclination: | 3.602° |
| Longitude of ascending node: | 191.803° |
| Argument of perihelion: | 270.477° |
| Physical characteristics | |
| Dimensions: | 60.2 km |
| Mass: | 2.3×1017 kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | 0.0168 m/s² |
| Escape velocity: | 0.0318 km/s |
| Rotation period: | ? d |
| Albedo: | 0.254 [1] |
| Temperature: | ~180 K |
| Spectral type: | S |
| Absolute magnitude: | 8.21 |
60 Echo is a quite large Main belt asteroid It is an S-type asteroid. Echo was discovered by James Ferguson on September 14, 1860 It was his third and final asteroid discovery It is named after Echo a nymph in Greek mythology.
[edit] Aspects
| Stationary, retrograde |
Opposition | Distance to Earth (AU) |
Maximum brightness (mag) |
Stationary, prograde |
Conjunction to Sun |
|---|---|---|---|---|---|
| 19 March 2005 | 13 November 2005 | 1.75518 | 9.9 | 21 December 2005 | 28 January 2006 |
| 4 October 2006 | 7 April 2007 | 0.98322 | 11.7 | 28 May 2007 | 19 July 2007 |
| 11 January 2008 | 10 July 2008 | 1.70297 | 11.4 | 30 August 2008 | 17 October 2008 |
| 5 May 2009 | 13 January 2010 | 1.57470 | 10.2 | 24 February 2010 | 3 April 2010 |
| 9 November 2010 | 2 May 2011 | 1.09207 | 12.0 | 25 June 2011 | 17 August 2011 |
| 5 February 2012 | 23 August 2012 | 1.80844 | 10.6 | 6 October 2012 | 20 November 2012 |
| 14 July 2013 | 25 February 2014 | 1.29910 | 10.9 | 12 April 2014 | 28 May 2014 |
| 8 December 2014 | 29 May 2015 | 1.38244 | 11.9 | 22 July 2015 | 11 September 2015 |
| 6 March 2016 | 21 October 2016 | 1.79118 | 10.1 | 28 November 2016 | 7 January 2017 |
| 17 September 2017 | 28 March 2018 | 1.03024 | 11.6 | 17 May 2018 | 7 July 2018 |
| 2 January 2019 | 28 June 2019 | 1.63648 | 11.6 | 19 August 2019 | 8 October 2019 |
| 16 April 2020 | 24 December 2020 | 1.65216 | 10.0 | 2 February 2021 | 11 March 2021 |
[edit] References
| Minor planets | ||
|---|---|---|
| Previous minor planet | 60 Echo | Next minor planet |
| List of asteroids | ||
Vulcanoids · Near-Earth asteroids · Main belt · Jupiter Trojans · Centaurs · Damocloids · Comets · Trans-Neptunians (Kuiper belt • Scattered disc • Oort cloud)
For other objects and regions, see Asteroid groups and families, Binary asteroids, Asteroid moons and the Solar System.
For a complete listing, see List of asteroids. See also Pronunciation of asteroid names and Meanings of asteroid names.
