Английская Википедия:6002 Eetion
Шаблон:Use dmy dates Шаблон:Infobox planet
6002 Eetion, provisional designation: Шаблон:Mp, is a mid-sized Jupiter trojan from the Trojan camp, approximately Шаблон:Convert in diameter. It was discovered by Poul Jensen at the Brorfelde Observatory in 1988, and has not been named since its numbering in June 1994.[1] The dark Jovian asteroid has a rotation period of 12.9 hours.[2] In 2021, it was named from Greek mythology after King Eetion, who was killed by Achilles during the raid on Thebe.
Discovery
Eetion discovered on 8 September 1988, by Danish astronomer Poul Jensen at the Brorfelde Observatory near Holbæk, Denmark,[3] who on very same night also discovered the Jupiter trojan Шаблон:Mpl, and several other main-belt asteroids including Шаблон:LoMP, Шаблон:LoMP, Шаблон:Mpl, Шаблон:LoMP, and Шаблон:LoMP.
Orbit and classification
Eetion is a dark Jovian asteroid in a 1:1 orbital resonance with Jupiter. It is located in the trailering Trojan camp at the Gas Giant's Шаблон:L5 Lagrangian point, 60° behind its orbit Шаблон:Crossreference.[4] It is also a non-family asteroid of the Jovian background population.[5]
It orbits the Sun at a distance of 4.7–5.7 AU once every 11 years and 11 months (4,361 days; semi-major axis of 5.22 AU). Its orbit has an eccentricity of 0.09 and an inclination of 16° with respect to the ecliptic.[6] A first precovery was taken at Palomar Observatory in September 1953, extending the body's observation arc by 35 years prior to its official discovery observation at Brorfelde.[3]
Numbering and naming
This minor planet was numbered by the Minor Planet Center on 23 June 1994 (Шаблон:Small).[1] On 29 November 2021, IAU's Working Group for Small Bodies Nomenclature Шаблон:MoMP it from Greek mythology after King Eetion of Thebe Hypoplakia, father of Andromache, and father-in-law of Hector. Eetion was killed during the raid on Thebe by Achilles.[3][7]
Physical characteristics
This Jupiter trojan is an assumed, carbonaceous C-type asteroid.[2]
Rotation period
In February 1993, Eetion was observed by astronomers Stefano Mottola and Mario Di Martino with the ESO 1-metre telescope and its DLR MkII CCD-camera at La Silla in Chile. The photometric observations were used to build a lightcurve showing a rotation period of Шаблон:Val hours with a brightness variation of Шаблон:Val magnitude (Шаблон:Small).[8] It was the body's first determined rotation period in literature.[8]Шаблон:Rp
Diameter and albedo
According to the survey carried out by NASA's Wide-field Infrared Survey Explorer with its subsequent NEOWISE mission, Eetion measures 40.4 kilometers in diameter and its surface has an albedo of 0.075,[9] while the Collaborative Asteroid Lightcurve Link assumes a standard albedo for a carbonaceous asteroid of 0.057 and calculates a diameter of 42.23 kilometers, based on an absolute magnitude of 10.6.[2]
Шаблон:Largest Jupiter trojans
References
External links
- Asteroid Lightcurve Database (LCDB), query form (info Шаблон:Webarchive)
- Discovery Circumstances: Numbered Minor Planets (5001)-(10000) – Minor Planet Center
- Asteroid (6002) 1988 RO at the Small Bodies Data Ferret
- Шаблон:AstDys
- Шаблон:JPL small body
Шаблон:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ 1,0 1,1 Ошибка цитирования Неверный тег
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- Английская Википедия
- Jupiter trojans (Trojan camp)
- Discoveries by Poul Jensen (astronomer)
- Named minor planets
- Astronomical objects discovered in 1988
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