Английская Википедия:2064 Thomsen

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2064 Thomsen (prov. designation: Шаблон:Mp) is a stony asteroid and Mars-crosser on an eccentric orbit, that measures approximately Шаблон:Convert in diameter. The asteroid was discovered by Finnish astronomer Liisi Oterma at Turku Observatory, Finland, on 8 September 1942. It was named after New Zealand astronomer Ivan Leslie Thomsen

Orbit and classification

The S-type asteroid orbits the Sun in the inner main-belt at a distance of 1.5–2.9 AU once every 3 years and 3 months (1,174 days). Its orbit has an eccentricity of 0.33 and an inclination of 6° with respect to the ecliptic.

Naming

This minor planet was named in memory of New Zealand astronomer Ivan Leslie Thomsen (1910–1969), director of the Carter Observatory, Wellington, from 1945 until he was appointed director of the Mount John University Observatory only two months before his death. He was an enthusiastic coordinator of New Zealand's astronomy and his efforts eventually led to the minor-planet observing program with the Carter Observatory 41-cm reflector. It was the 1977 rediscovery at the Carter Observatory that allowed this minor planet to be numbered. The official Шаблон:MoMP was published by the Minor Planet Center on 1 August 1978 (Шаблон:Small).

Physical characteristics

Four rotational lightcurves gave a well-defined rotation period of 4.233 hours with a brightness variation of 0.62–0.69 magnitude (Шаблон:Small) and an albedo of 0.055 and 0.16, as measured by the IRAS and Akari surveys, respectively.

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
• Шаблон:AstDys
• Шаблон:JPL small body