Английская Википедия:5635 Cole

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5635 Cole (prov. designation: Шаблон:Mp) is a background asteroid from the inner regions of the asteroid belt, approximately Шаблон:Convert in diameter. It was discovered on 2 March 1981, by American astronomer Schelte Bus at the Siding Spring Observatory in Australia. The L/S-type asteroid has a rotation period of 5.79 hours. It was named after the fictional character Шаблон:MoMP.

Orbit and classification

Cole is a non-family asteroid of the main belt's background population when applying the hierarchical clustering method to its proper orbital elements. It orbits the Sun in the inner main-belt at a distance of 1.7–3.0 AU once every 3 years and 8 months (1,345 days; semi-major axis of 2.39 AU). Its orbit has an eccentricity of 0.27 and an inclination of 7° with respect to the ecliptic. The body's observation arc begins with a precovery taken at the discovering Siding Spring Observatory on 9 February 1981, or four weeks prior to its official discovery observation.

Naming

This minor planet was named after fictional character Шаблон:MoMP in the novel Cole of Spyglass Mountain (1923) by Arthur Preston Hankins. The protagonist, reminiscent of Oliver Twist, is an amateur astronomer in a dystopian society where boys receive numbers instead of names. In the novel, Cole's number is Шаблон:LoMP and corresponds to this asteroid's numbering. The official naming citation was prepared by David H. Levy and published by the Minor Planet Center on 14 December 1997 (Шаблон:Small).

Physical characteristics

In the Moving Object Catalog of the Sloan Digital Sky Survey, Cole has a spectral type is closest to an L-type asteroid followed by the common, stony S-type. The Collaborative Asteroid Lightcurve Link also assume it to be an S-type asteroid.

Rotation period

In September 2004, two rotational lightcurves of Cole were obtained from photometric observations by Donald Pray, Silvano Casulli, René Roy. Lightcurve analysis gave a well-defined rotation period of 5.792 and 5.7937 hours with a brightness amplitude of 0.33 and 0.30 magnitude, respectively (Шаблон:Small).

Diameter and albedo

According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Cole measures between 3.51 and 4.263 kilometers in diameter and its surface has an albedo between 0.29 and 0.294, while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a stony asteroids of 0.20, and calculates a diameter of 4.71 kilometers based on an absolute magnitude of 14.0.

External links

• Lightcurve Database Query (LCDB), at www.minorplanet.info
• Dictionary of Minor Planet Names, Google books
• Asteroids and comets rotation curves, CdR – Geneva Observatory, Raoul Behrend
• Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
• Шаблон:AstDys
• Шаблон:JPL small body