6793 Palazzolo
| Discovery [1] | |
|---|---|
| Discovered by |
U. Quadri L. Strabla |
| Discovery site | Bassano Bresciano |
| Discovery date | 30 December 1991 |
| Designations | |
| MPC designation | 6793 Palazzolo |
Named after |
Palazzolo sull'Oglio (Italian city)[2] |
|
1991 YE · 1982 YS2 1990 SZ23 | |
| main-belt · (middle) [3] | |
| Orbital characteristics [1] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 32.50 yr (11,869 days) |
| Aphelion | 3.1011 AU |
| Perihelion | 2.2589 AU |
| 2.6800 AU | |
| Eccentricity | 0.1571 |
| 4.39 yr (1,602 days) | |
| 183.77° | |
| 0° 13m 28.92s / day | |
| Inclination | 4.9245° |
| 106.39° | |
| 46.141° | |
| Physical characteristics | |
| Dimensions |
9.882±0.051 km[4] 8.01 km (calculated)[3] |
|
6.2308±0.0072 h[3][5] 6.190±0.040 h[6] 6.2323±0.0072 h[5] | |
|
0.0831±0.0045[4] 0.10 (assumed)[3] | |
| S [3] | |
|
13.6[1] 13.78±0.23[7] 13.520±0.110[6] 13.3[4] 14.143±0.005 (S)[5] 13.709±0.002 (R)[5] | |
|
| |
6793 Palazzolo, provisional designation 1991 YE, is a stony asteroid from the middle region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 30 December 1991, by Italian amateur astronomers Ulisse Quadri and Luca Strabla at the Bassano Bresciano Observatory in northern Italy.[8]
The S-type asteroid orbits the Sun at a distance of 2.3–3.1 AU once every 4 years and 5 months (1,602 days). Its orbit has an eccentricity of 0.16 and an inclination of 5° with respect to the ecliptic.[1] The used first precovery was taken at ESO's La Silla Observatory in 1990, extending the asteroid's observation arc by 1 year prior to its discovery. The first unused observation at Crimea-Nauchnij dates back to 1982.[8]
A photometric light-curve analysis from 2012, at the U.S. Palomar Transient Factory (PTF), California, gave it a rotation period of 6.2308±0.0072 hours with a brightness amplitude of 0.16 in magnitude (U=2).[5] Follow-up observations at the PTF in 2013 and 2014, rendered similar periods of 6.190±0.040 and 6.2323±0.0072 hours with an amplitude of 0.16 and 0.14, respectively (U=2/2).[5][6]
According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, the asteroid has a diameter of 9.9 kilometers and an albedo of 0.083,[4] while the Collaborative Asteroid Lightcurve Link assumes an untypically low albedo for a stony asteroid of 0.10 and calculates a diameter of 8.0 kilometers.[3]
The minor planet is named after the Italian city of Palazzolo sull'Oglio, located between Brescia and Bergamo, in northern parts of the country. Known for its industries, including the first Italian factories producing cement and buttons, the city is now famous for its of spinning machines and zippers. It was founded on the banks of river Oglio, with archaeological findings dating back to the Roman era.[2] Naming citation was published on 4 April 1996 (M.P.C. 26933).[9]
References
- 1 2 3 4 "JPL Small-Body Database Browser: 6793 Palazzolo (1991 YE)" (2015-06-21 last obs.). Jet Propulsion Laboratory. Retrieved 17 May 2016.
- 1 2 Schmadel, Lutz D. (2007). Dictionary of Minor Planet Names – (6793) Palazzolo. Springer Berlin Heidelberg. p. 557. ISBN 978-3-540-00238-3. Retrieved 29 March 2016.
- 1 2 3 4 5 6 "LCDB Data for (6793) Palazzolo". Asteroid Lightcurve Database (LCDB). Retrieved 17 May 2016.
- 1 2 3 4 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 17 May 2016. - 1 2 3 4 5 6 Waszczak, Adam; Chang, Chan-Kao; Ofek, Eran O.; Laher, Russ; Masci, Frank; Levitan, David; et al. (September 2015). "Asteroid Light Curves from the Palomar Transient Factory Survey: Rotation Periods and Phase Functions from Sparse Photometry". The Astronomical Journal. 150 (3): 35. arXiv:1504.04041. Bibcode:2015AJ....150...75W. doi:10.1088/0004-6256/150/3/75. Retrieved 17 May 2016.
- 1 2 3 Chang, Chan-Kao; Ip, Wing-Huen; Lin, Hsing-Wen; Cheng, Yu-Chi; Ngeow, Chow-Choong; Yang, Ting-Chang; et al. (August 2015). "Asteroid Spin-rate Study Using the Intermediate Palomar Transient Factory". The Astrophysical Journal Supplement Series. 219 (2): 19. arXiv:1506.08493. Bibcode:2015ApJS..219...27C. doi:10.1088/0067-0049/219/2/27. Retrieved 17 May 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 17 May 2016.
- 1 2 "6793 Palazzolo (1991 YE)". Minor Planet Center. Retrieved 29 March 2016.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 17 May 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
- 6793 Palazzolo at the JPL Small-Body Database
