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2285 Ron Helin, provisional designation 1976 QB, is a stony Florian asteroid from the inner region of the asteroid belt, approximately 4 kilometers in diameter. It was discovered on 27 August 1976, by American astronomer Schelte Bus at Palomar Observatory in San Diego County, California.

Orbit and characterization

Ron Helin is a member of the Flora family, one of the largest groups of stony asteroids in the main-belt. It orbits the Sun in the inner main-belt at a distance of 1.8–2.7 AU once every 3 years and 4 months (1,208 days). Its orbit has an eccentricity of 0.21 and an inclination of 5° with respect to the ecliptic. Its rotation period is 12 hours.

Naming

This minor planet was named in honor of Ronald Helin, husband of American astronomer Eleanor Helin (1932–2009), in appreciation of his support of the Palomar Planet-Crossing Asteroid Survey (PCAS). The approved naming citation was published by the Minor Planet Center on 11 December 1981 (M.P.C. 6531).

References

1. ^ "JPL Small-Body Database Browser: 2285 Ron Helin (1976 QB)" (2017-03-11 last obs.). Jet Propulsion Laboratory. Retrieved 19 June 2017.
2. ^ Schmadel, Lutz D. (2007). "(2285) Ron Helin". Dictionary of Minor Planet Names – (2285) Ron Helin. Springer Berlin Heidelberg. p. 186. doi:10.1007/978-3-540-29925-7_2286. ISBN 978-3-540-00238-3.
3. ^ "LCDB Data for (2285) Ron Helin". Asteroid Lightcurve Database (LCDB). Retrieved 19 June 2017.
4. Behrend, Raoul. "Asteroids and comets rotation curves – (2285) Ron Helin". Geneva Observatory. Retrieved 19 June 2017.
5. "2285 Ron Helin (1976 QB)". Minor Planet Center. Retrieved 19 June 2017.
6. "MPC/MPO/MPS Archive". Minor Planet Center. Retrieved 19 June 2017.

External links

• Asteroid Lightcurve Database (LCDB), query form (info Archived 16 December 2017 at the Wayback Machine)
• 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
• 2285 Ron Helin at AstDyS-2, Asteroids—Dynamic Site
  • Ephemeris · Observation prediction · Orbital info · Proper elements · Observational info
• 2285 Ron Helin at the JPL Small-Body Database
  • Close approach · Discovery · Ephemeris · Orbit viewer · Orbit parameters · Physical parameters

• Minor planet object articles (numbered)
• Flora asteroids
• Discoveries by Schelte J. Bus
• Named minor planets
• Astronomical objects discovered in 1976