Английская Википедия:2940 Bacon

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Bacon (minor planet designation: 2940 Bacon), provisional designation Шаблон:Mp, is a carbonaceous Dorian asteroid from the central region of the asteroid belt, approximately 9 kilometers in diameter. It was discovered on 24 September 1960, by Ingrid and Cornelis van Houten at Leiden, and Tom Gehrels at Palomar Observatory in California, United States. It was later named after English philosopher and statesman Francis Bacon.

Orbit and classification

Bacon is a member of the Dora family (Шаблон:Small), a well-established central asteroid family of more than 1,200 carbonaceous asteroids. The family's namesake is 668 Dora. It is alternatively known as the "Zhongolovich family", named after its presumably largest member 1734 Zhongolovich. The Dora family may also contain a subfamily.Шаблон:Rp

It orbits the Sun in the middle main-belt at a distance of 2.1–3.4 AU once every 4 years and 8 months (1,695 days). Its orbit has an eccentricity of 0.24 and an inclination of 6° with respect to the ecliptic. The body's observation arc begins with its official discovery observation at Palomar, as no precoveries were taken, and no prior identifications were made.

Palomar–Leiden survey

The survey designation "P-L" stands for Palomar–Leiden, named after Palomar Observatory and Leiden Observatory, which collaborated on the fruitful Palomar–Leiden survey in the 1960s. Gehrels used Palomar's Samuel Oschin telescope (also known as the 48-inch Schmidt Telescope), and shipped the photographic plates to Ingrid and Cornelis van Houten at Leiden Observatory where astrometry was carried out. The trio are credited with the discovery of several thousand asteroids.

Physical characteristics

According to the surveys carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Bacon measures 8.953 kilometers in diameter and its surface has an albedo of 0.055, which is typical for carbonaceous C-type asteroids. It has an absolute magnitude of 14.3.

As of 2017, BaconШаблон:'s rotation period and shape, as well as its spectral type remains unknown.

Naming

This minor planet was named in honour of English philosopher, statesman, scientist, jurist, orator, and author Sir Francis Bacon (1561–1626). He has been called the father of empiricism and his works established and popularized the scientific method. According to the Baconian theory, he wrote the plays attributed to William Shakespeare. The approved naming citation was published by the Minor Planet Center on 29 September 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