8992 Magnanimity
| Discovery [1] | |
|---|---|
| Discovered by | Purple Mountain Obs. |
| Discovery site | Nanking, China |
| Discovery date | 14 October 1980 |
| Designations | |
| MPC designation | 8992 Magnanimity |
Named after |
Magnanimity (in memory of 9/11)[2] |
|
1980 TE7 · 1954 RE 1980 TJ11 · 1991 TV | |
| main-belt · (inner) [3] | |
| Orbital characteristics [1] | |
| Epoch 16 February 2017 (JD 2457800.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 61.77 yr (22,562 days) |
| Aphelion | 2.8908 AU |
| Perihelion | 1.8886 AU |
| 2.3897 AU | |
| Eccentricity | 0.2097 |
| 3.69 yr (1,349 days) | |
| 346.21° | |
| 0° 16m 0.48s / day | |
| Inclination | 7.9284° |
| 188.65° | |
| 133.59° | |
| Physical characteristics | |
| Dimensions | 6.21 km (calculated)[3] |
| 20.719±0.001 h[lower-alpha 1] | |
| 0.20 (assumed)[3] | |
| S [3] | |
| 13.4[1][3] · 13.70±0.72[4] | |
|
| |
8992 Magnanimity, provisional designation 1980 TE7, is a stony asteroid from the inner regions of the asteroid belt, approximately 6 kilometers in diameter. It was discovered on 14 October 1980, by observers at the Purple Mountain Observatory in Nanking, China.[5]
The S-type asteroid orbits the Sun at a distance of 1.9–2.9 AU once every 3 years and 8 months (1,349 days). Its orbit has an eccentricity of 0.21 and an inclination of 8° with respect to the ecliptic.[1] The first used observation was made at the U.S. Goethe Link Observatory in 1954, extending the asteroid's observation arc by 26 years prior to its discovery.[5]
The Collaborative Asteroid Lightcurve Link assumes a standard albedo for stony asteroids of 0.20 and calculates a diameter of 6.2 kilometers.[3] A rotational light-curve from photometric observations was obtained for this asteroid by Czech astronomer Petr Pravec at Ondřejov Observatory in September 2013. It gave a longer-than-average rotation period of 20.719±0.001 hours with a brightness amplitude of 0.25 in magnitude (U=3).[lower-alpha 1]
The asteroid was named in response to the September 11 attacks. As a commemorative gesture, the IAU's Committee for the Nomenclature of Small Bodies chose three objects discovered from observatories on different continents and christened them with names representing some of the most basic and universal human values. The other two selections were 8990 Compassion (discovered from Europe) and 8991 Solidarity (discovered from South America). Naming citation was published on 2 October 2001 (M.P.C. 43684).[6]
References
- 1 2 Pravec (2013) web: rotation period 20.719±0.001 hours with a brightness amplitude of 0.25 mag. Summary figures at Collaborative Asteroid Lightcurve Link (CALL) for (8992) Magnanimity and Pravec, P
.; Wolf, M .; Sarounova, L . (2013)
- 1 2 3 4 "JPL Small-Body Database Browser: 8992 Magnanimity (1980 TE7)" (2016-06-13 last obs.). Jet Propulsion Laboratory. Retrieved 4 December 2016.
- ↑ Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (8992) Magnanimity. Springer Berlin Heidelberg. p. 674. ISBN 978-3-540-00238-3. Retrieved 10 July 2016.
- 1 2 3 4 5 6 "LCDB Data for (8992) Magnanimity". Asteroid Lightcurve Database (LCDB). Retrieved 10 July 2016.
- ↑ Veres, Peter; Jedicke, Robert; Fitzsimmons, Alan; Denneau, Larry; Granvik, Mikael; Bolin, Bryce; et al. (November 2015). "Absolute magnitudes and slope parameters for 250,000 asteroids observed by Pan-STARRS PS1 - Preliminary results". Icarus. 261: 34–47. arXiv:1506.00762
. Bibcode:2015Icar..261...34V. doi:10.1016/j.icarus.2015.08.007. Retrieved 10 July 2016. - 1 2 "8992 Magnanimity (1980 TE7)". Minor Planet Center. Retrieved 10 July 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 10 July 2016.
External links
- Asteroid Lightcurve Database (LCDB), query form (info)
- Dictionary of Minor Planet Names, Google books
- Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- 8992 Magnanimity at the JPL Small-Body Database
