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2003 Harding, provisional designation 6559 P-L, is a carbonaceous Eoan asteroid from the outer regions of the asteroid belt, approximately 18 kilometers in diameter. It was discovered during the Palomar–Leiden survey on 24 September 1960, by astronomers Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar, California. The asteroid was later named after astronomer Karl Ludwig Harding.

Orbit and characterization

The asteroid is a member of the Eos family. Orbiting the Sun at a distance of 2.7–3.4 AU once every 5 years and 4 months, the asteroid's path is nearly coplanar to the plane of the ecliptic with an orbital inclination of less than 2 degrees. It has a short rotation period of three hours.

The survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand asteroid discoveries.

Naming

The asteroid is named after German astronomer Karl Ludwig Harding (1765–1834), who discovered the minor planet 3 Juno. He is also honored by the lunar crater Harding. The official naming citation was published by the Minor Planet Center on 15 October 1977 (M.P.C. 4238).

References

1. ^ "JPL Small-Body Database Browser: 2003 Harding (6559 P-L)" (2017-06-02 last obs.). Jet Propulsion Laboratory. Retrieved 17 June 2017.
2. ^ Schmadel, Lutz D. (2007). "(2003) Harding". Dictionary of Minor Planet Names – (2003) Harding. Springer Berlin Heidelberg. p. 162. doi:10.1007/978-3-540-29925-7_2004. ISBN 978-3-540-00238-3.
3. ^ Masiero, Joseph R.; Mainzer, A. K.; Grav, T.; Bauer, J. M.; Cutri, R. M.; Dailey, J.; et al. (November 2011). "Main Belt Asteroids with WISE/NEOWISE. I. Preliminary Albedos and Diameters". The Astrophysical Journal. 741 (2): 20. arXiv:1109.4096. Bibcode:2011ApJ...741...68M. doi:10.1088/0004-637X/741/2/68. Retrieved 17 June 2017.
4. ^ Alvarez-Candal, Alvaro; Duffard, René; Angeli, Cláudia A.; Lazzaro, Daniela; Fernández, Silvia (December 2004). "Rotational lightcurves of asteroids belonging to families". Icarus. 172 (2): 388–401. Bibcode:2004Icar..172..388A. doi:10.1016/j.icarus.2004.06.008. Retrieved 17 June 2017.
5. "LCDB Data for (2003) Harding". Asteroid Lightcurve Database (LCDB). Retrieved 17 June 2017.
6. "2003 Harding (6559 P-L)". Minor Planet Center. Retrieved 17 June 2017.
7. "Minor Planet Discoverers". Minor Planet Center. 24 April 2016. Retrieved 17 June 2017.
8. Schmadel, Lutz D. "Appendix – Publication Dates of the MPCs". Dictionary of Minor Planet Names – Addendum to Fifth Edition (2006–2008). Springer Berlin Heidelberg. p. 221. doi:10.1007/978-3-642-01965-4. ISBN 978-3-642-01964-7.

External links

• 2003 Harding at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Observatoire de Genève, Raoul Behrend

• Minor planet object articles (numbered)
• Themis asteroids
• Discoveries by Cornelis Johannes van Houten
• Discoveries by Ingrid van Houten-Groeneveld
• Discoveries by Tom Gehrels
• Discoveries by the Palomar–Leiden survey
• Named minor planets
• Astronomical objects discovered in 1960