Английская Википедия:2017 DR109
Шаблон:Infobox planet Шаблон:Mp, is a micro-asteroid, classified as near-Earth object of the Apollo group and Aten group, respectively. It is currently trapped in a 1:1 mean motion resonance with the Earth of the horseshoe type.[1] The object was first observed on 27 February 2017, by astronomers of the Catalina Sky Survey conducted at Mount Lemmon Observatory, Arizona, United States.[2]
Discovery
Шаблон:Mp was first observed by astronomer D. C. Fuls on 27 February 2017, using the 0.68-meter Schmidt camera of the Catalina Sky Survey at a visual apparent magnitude of 19.6.[1]Шаблон:Rp
Orbit and physical properties
The asteroid's orbit has still a high uncertainty; with a very short observation arc of just 5 days. It orbits the Sun at a distance of 0.76–1.24 AU once every 366 days (semi-major axis of 1.00 AU). Its orbit has an eccentricity of 0.24 and an inclination of 3° with respect to the ecliptic.[3] With a semi-major axis of that of Earth, the object is both classified as a member of Apollo and Aten in the JPL Small-Body Database and by the Minor Planet Center, respectively.[3][2] Both Apollo and Aten asteroids are Earth-crossing asteroids.
Earth co-orbital
Шаблон:Mp is currently trapped in a 1:1 mean motion resonance with the Earth of the horseshoe type and follows an orbit similar to those of 54509 YORP, Шаблон:Mpl and several other near-Earth asteroids.[1]
Physical characteristics
Шаблон:Mp has an absolute magnitude of 27.6 which gives a calculated mean diameter between 9 and 20 meters for an assumed geometric albedo of 0.20 and 0.04, respectively, which are typical values for stony S-type and carbonaceous C-type asteroids.[4][5]
Notes
- Шаблон:Note label This is assuming an albedo of 0.20 and 0.04, respectively.
References
External links
- MPEC 2017-E31 : 2017 DR109, Minor Planet Electronic Circular
- List Of Apollo Minor Planets (by designation)
- Шаблон:Mp at AstDys-2, AsteroidsШаблон:Snd Dynamic Site
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:Small Solar System bodies Шаблон:Authority control
- ↑ 1,0 1,1 1,2 Ошибка цитирования Неверный тег
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<ref>; для сносокNEODySне указан текст - ↑ Ошибка цитирования Неверный тег
<ref>; для сносокhне указан текст
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