8549 Alcide
| Discovery [1] | |
|---|---|
| Discovered by |
L. Bittesini and others |
| Discovery site | Farra d'Isonzo Observatory |
| Discovery date | 30 March 1994 |
| Designations | |
| MPC designation | 8549 Alcide |
Named after |
Alcide Bittesini (family of discoverer)[2] |
| 1994 FS | |
| main-belt · Nysa [3] | |
| Orbital characteristics [1] | |
| Epoch 13 January 2016 (JD 2457400.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 8052 days (22.05 yr) |
| Aphelion | 2.8905 AU (432.41 Gm) |
| Perihelion | 1.9811 AU (296.37 Gm) |
| 2.4358 AU (364.39 Gm) | |
| Eccentricity | 0.18667 |
| 3.80 yr (1388.6 d) | |
| 163.00° | |
| 0° 15m 33.336s / day | |
| Inclination | 1.8782° |
| 205.63° | |
| 64.902° | |
| Earth MOID | 0.964426 AU (144.2761 Gm) |
| Jupiter MOID | 2.2034 AU (329.62 Gm) |
| Jupiter Tisserand parameter | 3.480 |
| Physical characteristics | |
| Dimensions |
4.341±0.076 km[4] 4.39 km (caculated)[3] |
| 3 h (0.13 d)[5] | |
|
0.1959±0.0120[4] 0.21 (assumed)[3] | |
| S [3] | |
| 14.2[1] | |
|
| |
8549 Alcide, provisional designation 1994 FS, is a stony asteroid from the inner regions of the asteroid belt, about 4 kilometers in diameter. It was discovered on 30 March 1994, by a group of amateur astronomers at the Italian Farra d'Isonzo Observatory, in Farra d'Isonzo, near the border to Slovenia.[6]
The S-type asteroid is a member of the stony subgroup of the Nysa family, one of the smaller families in the main-belt, named after its namesake, 44 Nysa. The body orbits the Sun at a distance of 2.0–2.9 AU once every 3 years and 10 months (1,389 days). Its orbit is tilted by 2 degrees to the plane of the ecliptic and shows an eccentricity of 0.19. It has a rotation period of 3 hours[5] and an albedo of 0.20, according to the survey carried out by the NEOWISE mission of the U.S. Wide-field Infrared Survey Explorer.[4]
The minor planet was named in memory of Alcide Bittesini (1913–1981), father of Luciano Bittesini, one of the Farra d'Isonzo amateur astronomers who discovered this minor planet. A natural sciences high-school teacher in Italy, Alcide Bittesini kindled his then-nine-year-old son’s interest in astronomy by showing him a comet, using a handmade telescope constructed from a tin can, a pair of glasses and an eyepiece from his microscope.[2]
References
- 1 2 3 "JPL Small-Body Database Browser: 8549 Alcide (1994 FS)" (2015-11-22 last obs.). Jet Propulsion Laboratory. Retrieved 13 April 2016.
- 1 2 Schmadel, Lutz D. (2003). Dictionary of Minor Planet Names – (8549) Alcide. Springer Berlin Heidelberg. pp. 654–655. ISBN 978-3-540-29925-7. Retrieved December 2015.
- 1 2 3 4 "LCDB Data for (8549) Alcide". Asteroid Lightcurve Database (LCDB). Retrieved December 2015.
- 1 2 3 Mainzer, A.; Grav, T.; Masiero, J.; Hand, E.; Bauer, J.; Tholen, D.; et al. (November 2011). "NEOWISE Studies of Spectrophotometrically Classified Asteroids: Preliminary Results". The Astrophysical Journal 741 (2): 25. arXiv:1109.6407. Bibcode:2011ApJ...741...90M. doi:10.1088/0004-637X/741/2/90. Retrieved December 2015.
- 1 2 Polishook, D.; Brosch, N. (February 2009). "Photometry and spin rate distribution of small-sized main belt asteroids". Icarus 199 (2): 319–332. arXiv:0811.1223. Bibcode:2009Icar..199..319P. doi:10.1016/j.icarus.2008.10.020. Retrieved December 2015.
- ↑ "8549 Alcide (1994 FS)". Minor Planet Center. Retrieved December 2015.
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
- 8549 Alcide at the JPL Small-Body Database
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