53 Kalypso
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| Discovery | |
|---|---|
| Discovered by: | Karl Theodor Robert Luther |
| Discovery date: | April 4, 1858 |
| Alternative names: | |
| Minor planet category: | Main belt |
| Orbital characteristics | |
| Epoch December 31, 2006 (JD 2454100.5) | |
| Aphelion distance: | 471.807 Gm (3.154 AU) |
| Perihelion distance: | 311.998 Gm (2.086 AU) |
| Semi-major axis: | 391.903 Gm (2.620 AU) |
| Eccentricity: | 0.204 |
| Orbital period: | 1548.736 d (4.24 a) |
| Avg. orbital speed: | 18.21 km/s |
| Mean anomaly: | 98.113° |
| Inclination: | 5.153° |
| Longitude of ascending node: | 143.813° |
| Argument of perihelion: | 312.330° |
| Physical characteristics | |
| Dimensions: | 115.4 km |
| Mass: | 1.6×1018 kg |
| Mean density: | ? g/cm³ |
| Equatorial surface gravity: | 0.0323 m/s² |
| Escape velocity: | 0.0610 km/s |
| Rotation period: | ? d |
| Albedo: | 0.040 [1] |
| Temperature: | ~172 K |
| Spectral type: | ? |
| Absolute magnitude: | 8.81 |
53 Kalypso is a large and very dark main belt asteroid. It was discovered by R. Luther on April 4, 1858. It is named after Calypso, a sea nymph in Greek mythology. Calypso is also the name of a moon of Saturn.
[edit] Aspects
| Stationary, retrograde |
Opposition | Distance to Earth (AU) |
Maximum brightness (mag) |
Stationary, prograde |
Conjunction to Sun |
|---|---|---|---|---|---|
| 19 April 2005 | 17 December 2005 | 1.14266 | 10.9 | 25 January 2006 | 5 March 2006 |
| 12 October 2006 | 1 April 2007 | 2.01800 | 13.0 | 24 May 2007 | 18 July 2007 |
| 30 December 2007 | 14 June 2008 | 1.97801 | 12.8 | 6 August 2008 | 27 September 2008 |
| 19 March 2009 | 31 October 2009 | 1.12007 | 11.0 | 10 December 2009 | 19 January 2010 |
| 13 September 2010 | 15 March 2011 | 1.85900 | 12.7 | 4 May 2011 | 27 June 2011 |
| 14 December 2011 | 24 May 2012 | 2.09133 | 13.0 | 18 July 2012 | 10 September 2012 |
| 23 February 2013 | 18 September 2013 | 1.28869 | 11.5 | 28 October 2013 | 12 December 2013 |
| 3 August 2014 | 23 February 2015 | 1.64306 | 12.3 | 11 April 2015 | 31 May 2015 |
| 27 November 2015 | 7 May 2016 | 2.14060 | 13.2 | 1 July 2016 | 25 August 2016 |
| 4 February 2017 | 12 August 2017 | 1.53130 | 12.0 | 25 September 2017 | 13 November 2017 |
| 13 June 2018 | 29 January 2019 | 1.39263 | 11.7 | 13 March 2019 | 27 April 2019 |
| 9 November 2019 | 20 April 2020 | 2.12446 | 13.2 | 14 June 2020 | 8 August 2020 |
[edit] References
| Minor planets | ||
|---|---|---|
| Previous minor planet | 53 Kalypso | 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.
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