194 Prokne
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| Orbital characteristics 1 | |
|---|---|
| Orbit type | Main belt |
| Semimajor axis | 2.616 AU |
| Perihelion distance | 1.996 AU |
| Aphelion distance | 3.236 AU |
| Orbital period | 4.23 years |
| Inclination | 18.50° |
| Eccentricity | 0.237 |
| Physical characteristics 1 | |
| Diameter | 168.4 km |
| Rotation period 3 | 15.67 hours |
| Spectral class | C |
| Abs. magnitude | 7.68 |
| Albedo 4 | 0.053 |
| History 2 | |
| Discoverer | C. H. F. Peters, 1879 |
194 Prokne is a very large and dark main belt asteroid. It has a primitive carbonaceous composition.
It was discovered by C. H. F. Peters on March 21, 1879 in Clinton, New York and named after Procne, the sister of Philomela in Greek mythology.
Stellar occultations by Prokne have been observed twice, in 1984 from Italy and again in 1999 from Iowa (United States).
[edit] Aspects
| Stationary, than retrograde | Opposition | Distance at opposition | Maximum brightness | Stationary, than prograde | Conjunction to sun | |
|---|---|---|---|---|---|---|
| 23. November 2004 | 19. January 2005 | 12,3 mag | 2,19447 AU | 12. March 2005 | 24. August 2005 | |
| 5. February 2006 | 23. March 2006 | 11,9 mag | 2,01349 AU | 19. May 2006 | 14. November 2006 | |
| 15. July 2007 | 19. August 2007 | 9,6 mag | 0,99082 AU | 18. September 2007 | 13. May 2008 | |
| 8. November 2008 | 3. January 2009 | 12,2 mag | 2,07413 AU | 24. February 2009 | 9. August 2009 | |
| 17. January 2010 | 8. March 2010 | 12,0 mag | 2,15020 AU | 2. May 2010 | 19. October 2010 | |
| 17. May 2011 | 27. June 2011 | 10,5 mag | 1,18279 AU | 8. August 2011 | 7. April 2012 | |
| 24. October 2012 | 15. December 2012 | 11,9 mag | 1,88283 AU | 4. February 2013 | 25. July 2013 | |
| 30. December 2013 | 21. February 2014 | 12,1 mag | 2,23142 AU | 16. April 2014 | 30. September 2014 | |
| 8. April 2015 | 17. May 2015 | 11,2 mag | 1,48745 AU | 9. July 2015 | 22. February 2016 | |
| 6. October 2016 | 20. November 2016 | 11,4 mag | 1,61262 AU | 11. January 2017 | 8. July 2017 | |
| 14. December 2017 | 8. February 2018 | 12,3 mag | 2,25537 AU | 1. April 2018 | 13. September 2018 | |
| 9. March 2019 | 19. April 2019 | 11,6 mag | 1,74858 AU | 15. June 2019 | 4. January 2020 | |
| 13. September 2020 | 19. October 2020 | 10,6 mag | 1,27531 AU | 4. December 2020 | 18. June 2021 |
| Minor planets | ||
|---|---|---|
| Previous minor planet | 194 Prokne | Next minor planet |
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| 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. |
