Английская Википедия:3045 Alois

Содержание

Текст

Текст

Текст

Текст

Текст

Текст

Текст

Текст

Текст

3045 Alois, provisional designation Шаблон:Mp, is a carbonaceous asteroid from the outer region of the asteroid belt, approximately 26 kilometers in diameter. The asteroid was discovered on 8 January 1984, by American astronomer Joe Wagner at Lowell's Anderson Mesa Station in Flagstaff, Arizona, United States. It was named after the discoverer's grandfather Alois Stuczynski.

Orbit and classification

Alois orbits the Sun in the outer main-belt at a distance of 2.8–3.5 AU once every 5 years and 6 months (2,023 days). Its orbit has an eccentricity of 0.11 and an inclination of 3° with respect to the ecliptic. A first precovery was taken at Palomar Observatory in 1951, extending the body's observation arc by 33 years prior to its official discovery observation at Anderson Mesa.

Physical characteristics

The C-type body is also classified as an X-type asteroid by Pan-STARRSШаблон:' large-scale survey.

Rotation period

In November 2010, a rotational lightcurve of Alois was obtained from photometric observations made at the Palomar Transient Factory, California. It gave a rotation period of Шаблон:Val hours with a brightness amplitude of 0.18 in magnitude (Шаблон:Small).

Diameter and albedo

According to the space-based surveys by the Japanese Akari satellite and NASA's Wide-field Infrared Survey Explorer, Alois measures 23.5 and 27.5 kilometers in diameter, respectively, and has a corresponding albedo of 0.095 and 0.059. The Collaborative Asteroid Lightcurve Link assumes a standard albedo for carbonaceous asteroids of 0.057 and calculates a diameter of 26.6 kilometers.

Naming

This minor planet was named by the discoverer in memory of his grandfather, Alois T. Stuczynski. The official naming citation was published by the Minor Planet Center on 7 March 1985 (Шаблон:Small).

External links

• Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
• 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
• Шаблон:AstDys
• Шаблон:JPL small body