Английская Википедия:1869 Philoctetes
1869 Philoctetes Шаблон:IPAc-en is a Jupiter trojan from the Greek camp, approximately 23 kilometers in diameter.
It was discovered on September 24, 1960, by the Dutch and Dutch–American astronomers Cornelis van Houten, Ingrid van Houten-Groeneveld and Tom Gehrels at Palomar Observatory on Palomar Mountain, California.[1] The asteroid was named after Philoctetes from Greek mythology.[2] On the same night, the same group also discovered 1868 Thersites.
Orbit and classification
Philoctetes orbits in the Шаблон:L4 Lagrangian point of the Sun–Jupiter system, in the "Greek Camp" of Trojan asteroids.[3] It orbits the Sun at a distance of 4.9–5.6 AU once every 11 years and 11 months (4,353 days). Its orbit has an eccentricity of 0.07 and an inclination of 4° with respect to the ecliptic.[4]
Physical characteristics
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Philoctetes measures 22.7 kilometers in diameter, and its surface has an albedo of 0.104.[5]
As of 2017, the body's rotation period and shape remain unknown.[4][6]
Survey designation
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 Cornelis Johannes van Houten and Ingrid van Houten-Groeneveld at Leiden Observatory. The trio are credited with several thousand asteroid discoveries.[7]
Naming
This minor planet was named after the Greek mythological figure Philoctetes, famed archer and participant in the Trojan War, where he killed Paris, son of the Trojan King Priam.[2] The official Шаблон:MoMP was published by the Minor Planet Center on 1 June 1975 (Шаблон:Small).[8]
References
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
Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
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- Английская Википедия
- Jupiter trojans (Greek camp)
- Discoveries by Cornelis Johannes van Houten
- Discoveries by Ingrid van Houten-Groeneveld
- Discoveries by Tom Gehrels
- Discoveries by the Palomar–Leiden survey
- Named minor planets
- Astronomical objects discovered in 1960
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- Википедия
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