469 Argentina
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| Discovery[1] | |
|---|---|
| Discovered by | Luigi Carnera |
| Discovery site | Heidelberg-Königstuhl State Observatory |
| Discovery date | February 20, 1901 |
| Designations | |
| MPC designation | 469 |
| Named after | Argentina |
| Alternative names | 1901 GE |
| Minor planet category | main belt |
| Orbital characteristics[2] | |
| Epoch November 30, 2008 | |
| Aphelion | 3.6966 AU |
| Perihelion | 2.6356 AU |
| Semi-major axis | 3.1661 AU |
| Eccentricity | 0.167546 |
| Orbital period | 2057.71 days (5.63 years) |
| Mean anomaly | 29.088° |
| Inclination | 11.703° |
| Longitude of ascending node | 334.348° |
| Argument of perihelion | 206.147° |
| Physical characteristics | |
| Dimensions |
125.57 kilometres (78.03 mi) ± 5.6 kilometres (3.5 mi) Mean diameter[3] 126.00 ± 4.91[4] km |
| Mass | (4.53 ± 1.76) × 1018[4] kg |
| Mean density | 4.32 ± 1.75[4] g/cm3 |
| Rotation period | 12.3 hours [5] |
| Albedo | 0.0399 ± 0.004 [3] |
| Spectral type | P [6] |
| Absolute magnitude (H) | 8.62 [7] |
|
| |
469 Argentina is an asteroid that was discovered by Luigi Carnera on February 20, 1901. Its provisional name was 1901 GE.[1] 469 Argentina has an estimated rotation period of 12.3 hours.[5]
References
- ↑ 1.0 1.1 "Discovery Circumstances: Numbered Minor Planets (1)-(5000)". IAU: Minor Planet Center. Retrieved December 7, 2008.
- ↑ "(469) Argentina". AstDyS. Italy: University of Pisa. Retrieved December 11, 2008.
- ↑ 3.0 3.1 Tedesco et al. (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Retrieved January 7, 2009.
- ↑ 4.0 4.1 4.2 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: 98-118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
- ↑ 5.0 5.1 Székely et al.; Kiss, L; Szabo, G; Sarneczky, K; Csak, B; Varadi, M; Meszaros, S (2005). "CCD photometry of 23 minor planets" (abstact). Planetary and Space Science 53 (9): 925–936. arXiv:astro-ph/0504462. Bibcode:2005P&SS...53..925S. doi:10.1016/j.pss.2005.04.006. web preprint
- ↑ Fieber-Beyer et al. (2006-10-24). "Near-ir spectroscopic analysis of mainbelt X-asteroid 469 Argentina" (abstract). Geological Society of America Abstracts with Programs. 2006 Geological Society of America annual meeting and exposition 38. Geological Society of America. p. 405. Retrieved 2008-12-11.
- ↑ Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on 1 December 2008. Retrieved January 7, 2009.
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