Astronomy:67 Asia

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Short description: Main-belt asteroid
67 Asia
File:Asteroid 67 Asia. 5 exposures over 2 hours 13 Jan 2022 from UK. Approx 0.6° FoV (10 cycles).webm
67 Asia
Discovery
Discovered byNorman Robert Pogson
Discovery dateApril 17, 1861
Designations
(67) Asia
Pronunciation/ˈʃiə/[1]
Named afterAsia and Asia
Minor planet categoryMain belt
Orbital characteristics
Epoch December 31, 2006 (JD 2454100.5)
|{{{apsis}}}|helion}}2.869 astronomical unit|AU (429.2 Gm)
|{{{apsis}}}|helion}}1.973 astronomical unit|AU (295.2 Gm)
2.421 astronomical unit|AU (362.2 Gm)
Eccentricity0.185
Orbital period3.77 yr (1,376.048 d)
Mean anomaly182.178°
Inclination6.027°
Longitude of ascending node202.722°
|{{{apsis}}}|helion}}2023-Dec-10
106.301°
Proper orbital elements
Proper mean motion0.26133 deg / yr
1377.56859 yr
(503156.928 d)
Physical characteristics
Dimensions60.99 ± 2.41 km[2]
Mass(1.03 ± 0.10) × 1018 kg[2]
Mean density8.66 ± 1.32 g/cm3[2]
Rotation period15.89 hours
Geometric albedo0.255 [3]
S
Absolute magnitude (H)8.28


Asia (minor planet designation 67 Asia) is a large main belt asteroid. It was discovered by English astronomer N. R. Pogson on April 17, 1861, from the Madras Observatory. Pogson chose the name to refer both to Asia, a Titaness in Greek mythology, and to the continent of Asia, because the asteroid was the first to be discovered from that continent.[4]

This object is orbiting the Sun with a period of 3.77 years, a semimajor axis of 2.421 astronomical unit|AU, and an eccentricity of 0.185. It has a 2:1 commensurability with Mars, having an orbital period double that of the planet.[5] The orbital plane lies at an inclination of 6.0° to the plane of the ecliptic. This is a stony S-type asteroid with a cross-sectional size of 61 km,[2] Photometry from the Oakley Observatory during 2006 produced a lightcurve that indicated a sidereal rotation period of 15.90±0.02 with an amplitude of 0.26±0.04 in magnitude.[6]

References

  1. Noah Webster (1884) A Practical Dictionary of the English Language
  2. 2.0 2.1 2.2 2.3 Carry, B. (December 2012), "Density of asteroids", Planetary and Space Science 73: pp. 98–118, doi:10.1016/j.pss.2012.03.009, Bibcode2012P&SS...73...98C.  See Table 1.
  3. Asteroid Data Sets
  4. Schmadel, Lutz D. (2003), Dictionary of Minor Planet Names, Springer Science & Business Media, p. 22, ISBN 978-3-540-00238-3, https://books.google.com/books?id=KWrB1jPCa8AC&pg=PA22 
  5. Plastino, A. R.; Vucetich, H. (August 1992), "Resonant asteroids and the equivalence principle", Astronomy and Astrophysics 262 (1): 321–325, Bibcode1992A&A...262..321P 
  6. Ditteon, Richard; Hawkins, Scot (September 2007), "Asteroid Lightcurve Analysis at the Oakley Observatory – October–November 2006", The Minor Planet Bulletin 34 (3): 59–64, ISSN 1052-8091, Bibcode2007MPBu...34...59D. 

External links