Astronomy:12848 Agostino
| Discovery[1] | |
|---|---|
| Discovered by | A. Boattini |
| Discovery site | Campo Imperatore |
| Discovery date | 10 July 1997 |
| Designations | |
| (12848) Agostino | |
| Named after | Agostino Boattini (discoverer's father)[2] |
| 1997 NK10 · 1993 QQ10 | |
| Minor planet category | main-belt · Eunomia[3] |
| Orbital characteristics[1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 66.88 yr (24,428 days) |
| |{{{apsis}}}|helion}} | 2.8514 AU |
| |{{{apsis}}}|helion}} | 2.3537 AU |
| 2.6025 AU | |
| Eccentricity | 0.0956 |
| Orbital period | 4.20 yr (1,534 days) |
| Mean anomaly | 183.78° |
| Mean motion | 0° 14m 5.28s / day |
| Inclination | 15.066° |
| Longitude of ascending node | 172.84° |
| 249.89° | |
| Physical characteristics | |
| Dimensions | 4.55 km (calculated)[3] 4.864±0.120 km[4][5] |
| Rotation period | 6.3225±0.0052 h[6] 6.3350±0.0258 h[6] |
| Geometric albedo | 0.21 (assumed)[3] 0.225±0.033[4][5] |
| S[3] | |
| Absolute magnitude (H) | 13.6[1] · 13.54±0.32[7] · 13.8[4] · 13.537±0.006 (R)[6] · 13.574±0.007 (R)[6] · 14.02[3] |
12848 Agostino, provisional designation 1997 NK10, is a stony Eunomia asteroid from the central region of the asteroid belt, approximately 5 kilometers in diameter.
The asteroid was discovered on 10 July 1997, by Italian astronomer Andrea Boattini at the Campo Imperatore Observatory in the Gran Sasso massif of central Italy.[8] It was named after the father of the discoverer, Agostino Boattini.[2]
Orbit and classification
Agostino is a member of the Eunomia family, a large group of stony S-type asteroids and the most prominent family in the intermediate main-belt. It orbits the Sun at a distance of 2.4–2.9 AU once every 4 years and 2 months (1,534 days). Its orbit has an eccentricity of 0.10 and an inclination of 15° with respect to the ecliptic.[1]
The body's observation arc begins 47 years prior to its official discovery observation with a precovery taken at Palomar Observatory in June 1950.[8]
Physical characteristics
Two rotational lightcurves of Agostino were obtained in the R-band from photometric observations by astronomers at the Palomar Transient Factory in August 2010, and February 2012, respectively. Lightcurve analysis gave a rotation period of 6.3350 and 6.3225 hours with a respective brightness variation of 0.51 and 0.84 in magnitude ({{{1}}}).[6]
According to the NEOWISE mission of NASA's space-based Wide-field Infrared Survey Explorer, Agostino measures 4.9 kilometers in diameter and its surface has an albedo of 0.23.[4] The Collaborative Asteroid Lightcurve Link assumes an albedo of 0.21 – derived from 15 Eunomia, the family's largest member and namesake – and calculates a diameter of 4.6 kilometers with an absolute magnitude of 14.02.[3]
Naming
This minor planet was named after Agostino Boattini (born 1932), the father of the discoverer.[2] The approved naming citation was published by the Minor Planet Center on 9 May 2001 (M.P.C. 42673).[9]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 12848 Agostino (1997 NK10)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2012848.
- ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(12848) Agostino". Dictionary of Minor Planet Names – (12848) Agostino. Springer Berlin Heidelberg. p. 789. doi:10.1007/978-3-540-29925-7_8689. ISBN 978-3-540-00238-3.
- ↑ 3.0 3.1 3.2 3.3 3.4 3.5 "LCDB Data for (12848) Agostino". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=12848%7CAgostino.
- ↑ 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 2 May 2016.
- ↑ 5.0 5.1 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 3 December 2016.
- ↑ 6.0 6.1 6.2 6.3 6.4 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 2 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. doi:10.1016/j.icarus.2015.08.007. Bibcode: 2015Icar..261...34V. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2015Icar..261...34V. Retrieved 2 May 2016.
- ↑ 8.0 8.1 "12848 Agostino (1997 NK10)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=12848.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
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 (10001)-(15000) – Minor Planet Center
- 12848 Agostino at AstDyS-2, Asteroids—Dynamic Site
- 12848 Agostino at the JPL Small-Body Database
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