Astronomy:469 Argentina
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Short description: Main-belt asteroid
| Discovery [1] | |
|---|---|
| Discovered by | Luigi Carnera |
| Discovery site | Heidelberg Observatory |
| Discovery date | 20 February 1901 |
| Designations | |
| (469) Argentina | |
| Pronunciation | /ɑːrdʒənˈtaɪnə/ |
| Named after | Argentina |
| 1901 GE | |
| Minor planet category | main belt |
| Adjectives | Argentinian /ɑːrdʒənˈtɪniən/ |
| Orbital characteristics [2][3] | |
| Epoch 31 July 2016 (JD 2457600.5) | |
| Uncertainty parameter 0 | |
| Observation arc | 109.08 yr (39840 d) |
| ||helion}} | 3.68734 astronomical unit|AU (551.618 Gm) |
| ||helion}} | 2.67484 AU (400.150 Gm) |
| 3.18109 AU (475.884 Gm) | |
| Eccentricity | 0.159144 |
| Orbital period | 5.67 yr (2072.3 d) |
| Mean anomaly | 153.115° |
| Mean motion | 0° 10m 25.378s / day |
| Inclination | 11.5955° |
| Longitude of ascending node | 333.476° |
| 209.588° | |
| Physical characteristics | |
| Dimensions | |
| Mean radius | 62.785±2.8 km |
| Mass | (4.53±1.76)×1018 kg [5] |
| Mean density | 4.32±1.75 g/cm3[5] |
| Rotation period | |
| Geometric albedo | 0.0399±0.004 [3][4] |
| P [7] | |
| Absolute magnitude (H) | 8.62 [8] |
Argentina (minor planet designation: 469 Argentina) is an asteroid that was discovered by Luigi Carnera on 20 February 1901. Its provisional name was 1901 GE.[1] 469 Argentina has an estimated rotation period of 12.3 hours.[6]
References
- ↑ 1.0 1.1 "Discovery Circumstances: Numbered Minor Planets (1)–(5000)". IAU: Minor Planet Center. http://www.cfa.harvard.edu/iau/lists/NumberedMPs000001.html.
- ↑ "(469) Argentina". AstDyS. Italy: University of Pisa. https://newton.spacedys.com/astdys/index.php?pc=1.1.0&n=469.
- ↑ 3.0 3.1 3.2 "469 Argentina (1901 GE)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. https://ssd.jpl.nasa.gov/sbdb.cgi?sstr=469;cad=1.
- ↑ 4.0 4.1 Tedesco (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. http://www.psi.edu/pds/resource/imps.html.
- ↑ 5.0 5.1 5.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73 (1): 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode: 2012P&SS...73...98C. See Table 1.
- ↑ 6.0 6.1 Székely et al. (2005). "CCD photometry of 23 minor planets". Planetary and Space Science 53 (9): 925–936. doi:10.1016/j.pss.2005.04.006. Bibcode: 2005P&SS...53..925S. web preprint
- ↑ Fieber-Beyer (2006-10-24). "Near-ir spectroscopic analysis of mainbelt X-asteroid 469 Argentina" (abstract). 2006 Geological Society of America annual meeting and exposition. 38. Geological Society of America. pp. 405. http://gsa.confex.com/gsa/2006AM/finalprogram/abstract_114163.htm. Retrieved 2008-12-11.
- ↑ Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0.. Planetary Data System. http://www.psi.edu/pds/resource/astermag.html.
External links
- Lightcurve plot of 469 Argentina, Palmer Divide Observatory, B. D. Warner (2006)
- 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
- 469 Argentina at AstDyS-2, Asteroids—Dynamic Site
- 469 Argentina at the JPL Small-Body Database
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