Minorplanet: | yes |
2285 Ron Helin | |
Background: |
|
Discovery Ref: |   |
Discovered: | 27 August 1976 |
Mpc Name: | (2285) Ron Helin |
Alt Names: | 1976 QB |
Mp Category: | main-beltFlora  |
Orbit Ref: |   |
Epoch: | 4 September 2017 (JD 2458000.5) |
Uncertainty: | 0 |
Observation Arc: | 40.54 yr (14,807 days) |
Perihelion: | 1.7578 AU |
Semimajor: | 2.2197 AU |
Eccentricity: | 0.2081 |
Period: | 3.31 yr (1,208 days) |
Mean Motion: | / day |
Inclination: | 5.3339° |
Asc Node: | 157.85° |
Arg Peri: | 182.81° |
Dimensions: | 4.11 km |
Albedo: | 0.24 |
Spectral Type: | S  |
Abs Magnitude: | 14.014.1 |
2285 Ron Helin, provisional designation, 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.
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.
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 .