423 Diotima
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| Discovery A | |
|---|---|
| Discoverer | Auguste Charlois |
| Discovery date | December 7, 1896 |
| Alternate designations B |
1896 DB |
| Category | Main belt (Eos) |
| Orbital elements C | |
|
|
|
| Eccentricity (e) | 0.041 |
| Semi-major axis (a) | 458.683 Gm (3.066 AU) |
| Perihelion (q) | 439.945 Gm (2.941 AU) |
| Aphelion (Q) | 477.421 Gm (3.191 AU) |
| Orbital period (P) | 1960.969 d (5.37 a) |
| Mean orbital speed | 17.01 km/s |
| Inclination (i) | 11.24° |
| Longitude of the ascending node (Ω) |
69.564° |
| Argument of perihelion (ω) |
207.473° |
| Mean anomaly (M) | 179.514° |
| Physical characteristics D | |
| Dimensions | 209.0 km |
| Mass | unknown |
| Density | unknown |
| Surface gravity | unknown |
| Escape velocity | unknown |
| Rotation period | unknown |
| Spectral class | C |
| Absolute magnitude | 7.24 |
| Albedo (geometric) | unknown |
| Mean surface temperature |
unknown |
423 Diotima (dye'-a-tye'-ma, Latin Diotīma, from Greek) is a one of the largest Main belt asteroids. It is classified as a C-type asteroid and is probably composed of primitive carbonaceous material.
It was discovered by Auguste Charlois on December 7, 1896 in Nice.
[edit] Aspects
| Stationary, than retrograde | Opposition | Distance at opposition | Maximum brightness | Stationary, than prograde | Conjunction to sun | |
|---|---|---|---|---|---|---|
| 30. October 2004 | 21. December 2004 | 11,7 mag | 2,20845 AU | 11. February 2005 | 30. July 2005 | |
| 20. January 2006 | 6. March 2006 | 11,8 mag | 2,14433 AU | 3. May 2006 | 22. October 2006 | |
| 12. April 2007 | 2. June 2007 | 11,1 mag | 1,94159 AU | 24. July 2007 | 16. January 2008 | |
| 20. July 2008 | 4. September 2008 | 11,6 mag | 2,02689 AU | 29. October 2008 | 13. April 2009 | |
| 2. October 2009 | 24. November 2009 | 11,5 mag | 2,17785 AU | 17. January 2010 | 1. July 2010 | |
| 22. December 2010 | 6. February 2011 | 11,9 mag | 2,19835 AU | 2. April 2011 | 20. September 2011 | |
| 10. March 2012 | 28. April 2012 | 11,4 mag | 2,00144 AU | 23. June 2012 | 14. December 2012 | |
| 15. June 2013 | 31. July 2013 | 11,5 mag | 1,96495 AU | 21. September 2013 | 13. March 2014 | |
| 6. September 2014 | 28. October 2014 | 11,7 mag | 2,13089 AU | 22. December 2014 | 2. June 2015 | |
| 21. November 2015 | 9. January 2016 | 11,8 mag | 2,21559 AU | 2. March 2016 | 20. August 2016 | |
| 9. February 2017 | 28. March 2017 | 11,7 mag | 2,08820 AU | 25. May 2017 | 13. November 2017 | |
| 8. May 2018 | 26. June 2018 | 11,3 mag | 1,93221 AU | 16. August 2018 | 8. February 2019 | |
| 11. August 2019 | 27. September 2019 | 11,7 mag | 2,07246 AU | 23. November 2019 | 4. May 2020 | |
| 21. October 2020 | 13. December 2020 | 11,6 mag | 2,20141 AU | 3. February 2021 | 21. July 2021 |
| Minor planets | ||
|---|---|---|
| Previous minor planet | 423 Diotima | 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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