Astronomy:6460 Bassano
| Discovery [1] | |
|---|---|
| Discovered by | U. Quadri L. Strabla |
| Discovery site | Bassano Bresciano Obs. |
| Discovery date | 26 October 1992 |
| Designations | |
| (6460) Bassano | |
| Named after | Bassano Bresciano (Italian village)[2] |
| 1992 UK6 · 1985 TR2 1989 YM6 | |
| Minor planet category | main-belt · Flora [3] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 31.43 yr (11,481 days) |
| |{{{apsis}}}|helion}} | 2.4975 AU |
| |{{{apsis}}}|helion}} | 2.0183 AU |
| 2.2579 AU | |
| Eccentricity | 0.1061 |
| Orbital period | 3.39 yr (1,239 days) |
| Mean anomaly | 43.163° |
| Mean motion | 0° 17m 25.8s / day |
| Inclination | 3.2269° |
| Longitude of ascending node | 299.03° |
| 181.72° | |
| Physical characteristics | |
| Dimensions | 4.252±0.108 km[4][5] 4.94 km (calculated)[3] |
| Rotation period | 2.9131±0.0034 h[6] 2.9145±0.0034 h[3] |
| Geometric albedo | 0.24 (assumed)[3] 0.389±0.048[4][5] |
| S [3] | |
| Absolute magnitude (H) | 13.5[4] · 13.576±0.002 (R)[6] · 13.7[1][3] · 14.291±0.003 (S)[6] |
6460 Bassano, provisional designation 1992 UK6, is a stony Flora asteroid from the inner regions of the asteroid belt, approximately 4.5 kilometers in diameter. The asteroid was discovered on 26 October 1992, by Italian amateur astronomers Ulisse Quadri and Luca Strabla at the Bassano Bresciano Observatory in northern Italy.[7] It was named for the Italian village of Bassano Bresciano.[2]
Orbit and classification
The S-type asteroid is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. Bassano orbits the Sun in the inner main-belt at a distance of 2.0–2.5 AU once every 3 years and 5 months (1,239 days). Its orbit has an eccentricity of 0.11 and an inclination of 3° with respect to the ecliptic.[1]
In October 1985, it was first identified as 1985 TR2 at the French Caussols Observatory, extending the body's observation arc by 7 years prior to its official discovery observation at Bassano Bresciano.[7]
Physical characteristics
Rotation period
Two rotational lightcurves of Bassano were obtained from photometric observations at the Palomar Transient Factory in August 2012. Lightcurve analysis gave a rotation period of 2.9145 and 2.9131 hours with a brightness variation of 0.38 and 0.29 magnitude, respectively ({{{1}}}).[6]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Bassano measures 4.3 kilometers in diameter and its surface has a high albedo of 0.39.[4][5] The Collaborative Asteroid Lightcurve Link assumes a lower albedo of 0.24 – derived from 8 Flora, the principal body and namesake of its orbital family – and hence calculates a larger diameter of 4.9 kilometers.[3]
Naming
This minor planet was named for the location of the discovering observatory, Bassano Bresciano, an ancient village in northern Italy.[2]
The historic village was under Longobard and Frank control during the early Middle Ages, and then ruled by the House of Sforza and the Venice republic. In the 16th century the former marshland was regained by the two Italian agronomists Camillo Tarello and Agostino Gallo. Monuments in the village include Luzzago's palace and Brunelli's villa. Its church has a Via Crucis credited to the school of Venetian painter Giovanni Battista Tiepolo, one of the great Old Masters of that period.[2] The official naming citation was published by the Minor Planet Center on 9 September 1995 (M.P.C. 25655).[8]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 6460 Bassano (1992 UK6)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2006460.
- ↑ 2.0 2.1 2.2 2.3 Schmadel, Lutz D. (2007). "(6460) Bassano". Dictionary of Minor Planet Names – (6460) Bassano. Springer Berlin Heidelberg. p. 534. doi:10.1007/978-3-540-29925-7_5883. ISBN 978-3-540-00238-3.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 3.6 "LCDB Data for (6460) Bassano". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=6460%7CBassano.
- ↑ 4.0 4.1 4.2 4.3 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. doi:10.1088/0004-637X/741/2/90. Bibcode: 2011ApJ...741...90M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...90M. Retrieved 17 May 2016.
- ↑ 5.0 5.1 5.2 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J. et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal 741 (2): 20. doi:10.1088/0004-637X/741/2/68. Bibcode: 2011ApJ...741...68M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011ApJ...741...68M. Retrieved 5 December 2016.
- ↑ 6.0 6.1 6.2 6.3 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. doi:10.1088/0004-6256/150/3/75. Bibcode: 2015AJ....150...75W. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015AJ....150...75W. Retrieved 17 May 2016.
- ↑ 7.0 7.1 "6460 Bassano (1992 UK6)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=6460.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
External links
- Bassano Bresciano Astronomical Observatory – homepage
- 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
- 6460 Bassano at AstDyS-2, Asteroids—Dynamic Site
- 6460 Bassano at the JPL Small-Body Database
 |  |
