Astronomy:3951 Zichichi
| Discovery [1] | |
|---|---|
| Discovered by | San Vittore Obs. |
| Discovery site | San Vittore Obs. |
| Discovery date | 13 February 1986 |
| Designations | |
| (3951) Zichichi | |
| Named after | Antonino Zichichi (Italian nuclear physicist)[2] |
| 1986 CK1 · 1938 UG 1976 JG9 · 1979 DR 1981 UJ12 · 1986 AU2 | |
| Minor planet category | main-belt · Flora [3] |
| Orbital characteristics [1] | |
| Epoch 4 September 2017 (JD 2458000.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 40.56 yr (14,816 days) |
| |{{{apsis}}}|helion}} | 2.7469 AU |
| |{{{apsis}}}|helion}} | 1.9320 AU |
| 2.3394 AU | |
| Eccentricity | 0.1742 |
| Orbital period | 3.58 yr (1,307 days) |
| Mean anomaly | 355.00° |
| Mean motion | 0° 16m 31.44s / day |
| Inclination | 5.4133° |
| Longitude of ascending node | 270.04° |
| 151.72° | |
| Known satellites | 1[4][5] |
| Physical characteristics | |
| Dimensions | 6.720±0.213[6] |
| Rotation period | 3.39423±0.00007 h[5] |
| Geometric albedo | 0.325±0.050[6] |
| S [3] | |
| Absolute magnitude (H) | 12.8[1] |
3951 Zichichi, provisional designation 1986 CK1, is a stony Florian asteroid and binary system from the inner regions of the asteroid belt, approximately 7 kilometers in diameter. It was discovered on 12 February 1986, by staff members at the San Vittore Observatory near Bologna, Italy, and named after physicist Antonino Zichichi.[2][7]
Orbit and classification
Zichichi is a S-type asteroid and member of the Flora family, one of the largest collisional populations of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.9–2.7 AU once every 3 years and 7 months (1,307 days). Its orbit has an eccentricity of 0.17 and an inclination of 5° with respect to the ecliptic.[1]
Physical characteristics
A minor-planet moon was discovered orbiting at a distance of 16 km in 2006, but not announced until 2011.[4][5]
Naming
This minor planet was named after Italian nuclear physicist Antonino Zichichi.[2] The approved naming citation was published by the Minor Planet Center on 20 May 1989 (M.P.C. 14634).[8]
References
- ↑ 1.0 1.1 1.2 1.3 "JPL Small-Body Database Browser: 3951 Zichichi (1986 CK1)". Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=2003951.
- ↑ 2.0 2.1 2.2 Schmadel, Lutz D. (2007). "(3951) Zichichi". Dictionary of Minor Planet Names – (3951) Zichichi. Springer Berlin Heidelberg. pp. 336–337. doi:10.1007/978-3-540-29925-7_3939. ISBN 978-3-540-00238-3.
- ↑ 3.0 3.1 "LCDB Data for (3951) Zichichi". Asteroid Lightcurve Database (LCDB). http://www.minorplanet.info/PHP/generateOneAsteroidInfo.php?AstInfo=3951%7CZichichi.
- ↑ 4.0 4.1 Johnston, Robert (21 September 2014). "(3951) Zichichi". johnstonsarchive.net. http://www.johnstonsarchive.net/astro/astmoons/am-03951.html.
- ↑ 5.0 5.1 5.2 Antonini, P.; Behrend, R.; Colas, F.; Lecacheux, J.; Goncalves, R.; Starkey, D. et al. (April 2011). "(3951) Zichichi". Central Bureau Electronic Telegrams 2698 (2698): 1. Bibcode: 2011CBET.2698....1A. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2011CBET.2698....1A. Retrieved 15 June 2017.
- ↑ 6.0 6.1 Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Nugent, C. et al. (November 2012). "Preliminary Analysis of WISE/NEOWISE 3-Band Cryogenic and Post-cryogenic Observations of Main Belt Asteroids". The Astrophysical Journal Letters 759 (1): 5. doi:10.1088/2041-8205/759/1/L8. Bibcode: 2012ApJ...759L...8M. http://adsabs.harvard.edu/cgi-bin/bib_query?bibcode=2012ApJ...759L...8M. Retrieved 14 June 2017.
- ↑ "3951 Zichichi (1986 CK1)". Minor Planet Center. https://www.minorplanetcenter.net/db_search/show_object?object_id=3951.
- ↑ "MPC/MPO/MPS Archive". Minor Planet Center. https://www.minorplanetcenter.net/iau/ECS/MPCArchive/MPCArchive_TBL.html.
External links
- Asteroids with Satellites, Robert Johnston, johnstonsarchive.net
- 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 (1)-(5000) – Minor Planet Center
- 3951 Zichichi at AstDyS-2, Asteroids—Dynamic Site
- 3951 Zichichi at the JPL Small-Body Database
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