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469 Argentina

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Main-belt asteroid

469 Argentina
Discovery 
Discovered byLuigi Carnera
Discovery siteHeidelberg Observatory
Discovery date20 February 1901
Designations
MPC designation(469) Argentina
Pronunciation/ɑːrdʒənˈtaɪnə/
Named afterArgentina
Alternative designations1901 GE
Minor planet categorymain belt
AdjectivesArgentinian /ɑːrdʒənˈtɪniən/
Orbital characteristics
Epoch 31 July 2016 (JD 2457600.5)
Uncertainty parameter 0
Observation arc109.08 yr (39840 d)
Aphelion3.68734 AU (551.618 Gm)
Perihelion2.67484 AU (400.150 Gm)
Semi-major axis3.18109 AU (475.884 Gm)
Eccentricity0.159144
Orbital period (sidereal)5.67 yr (2072.3 d)
Mean anomaly153.115°
Mean motion0° 10 25.378 / day
Inclination11.5955°
Longitude of ascending node333.476°
Argument of perihelion209.588°
Physical characteristics
Dimensions
  • 125.57 ± 5.6 kilometres (78.03 ± 3.48 mi)
    Mean diameter 
  • 126.00 ± 4.91 kilometres (78.29 ± 3.05 mi) 
Mean radius62.785±2.8 km
Mass(4.53±1.76)×10 kg 
Mean density4.32±1.75 g/cm
Synodic rotation period
  • 12.3 hours 
  • 17.573 h (0.7322 d) 
Geometric albedo0.0399±0.004 
Spectral typeP
Absolute magnitude (H)8.62 

469 Argentina is an asteroid that was discovered by Luigi Carnera on 20 February 1901. Its provisional name was 1901 GE. 469 Argentina has an estimated rotation period of 12.3 hours.

References

  1. ^ "Discovery Circumstances: Numbered Minor Planets (1)–(5000)". IAU: Minor Planet Center. Retrieved 7 December 2008.
  2. "(469) Argentina". AstDyS. Italy: University of Pisa. Archived from the original on 26 May 2011. Retrieved 11 December 2008.
  3. ^ "469 Argentina (1901 GE)". JPL Small-Body Database. NASA/Jet Propulsion Laboratory. Retrieved 6 May 2016.
  4. ^ Tedesco; et al. (2004). "Supplemental IRAS Minor Planet Survey (SIMPS)". IRAS-A-FPA-3-RDR-IMPS-V6.0. Planetary Data System. Archived from the original on 17 August 2009. Retrieved 7 January 2009.
  5. ^ Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science, 73 (1): 98–118, arXiv:1203.4336, Bibcode:2012P&SS...73...98C, doi:10.1016/j.pss.2012.03.009. See Table 1.
  6. ^ Székely; Kiss, L; Szabo, G; Sarneczky, K; Csak, B; Varadi, M; Meszaros, S; et al. (2005). "CCD photometry of 23 minor planets". 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
  7. Fieber-Beyer; et al. (24 October 2006). "Near-ir spectroscopic analysis of mainbelt X-asteroid 469 Argentina". Geological Society of America Abstracts with Programs. 2006 Geological Society of America annual meeting and exposition. Vol. 38. Geological Society of America. p. 405. Archived from the original (abstract) on 29 August 2008. Retrieved 11 December 2008.
  8. Tholen (2007). "Asteroid Absolute Magnitudes". EAR-A-5-DDR-ASTERMAG-V11.0. Planetary Data System. Archived from the original on 1 December 2008. Retrieved 7 January 2009.

External links

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