Английская Википедия:2018 CC
Шаблон:Use dmy dates Шаблон:Infobox planet
Шаблон:Mp is a micro-asteroid, classified as a near-Earth object of the Apollo group, approximately Шаблон:Convert in diameter. Its official first observation was made by the Catalina Sky Survey at Mount Lemmon Observatory, Arizona, United States, on 4 February 2018.[1] Two days later, the asteroid crossed the orbit of the Moon and made a very close approach to Earth.[2]
Orbit and classification
Шаблон:Mp belongs to the Apollo asteroids, which cross the orbit of Earth. Apollo's are the largest group of near-Earth objects with nearly 10 thousand known members. It orbits the Sun at a distance of 0.84–1.73 AU once every 18 months (531 days; semi-major axis of 1.28 AU). Its orbit has an eccentricity of 0.35 and an inclination of 8° with respect to the ecliptic.[2] With an aphelion of 1.73 AU, it is also a Mars-crosser, as it crosses the orbit of the Red Planet at 1.66 AU.
The body's observation arc begins with its first recorded observation by Pan-STARRS on 20 January 2018.[1]
Close approaches
The object has a low minimum orbital intersection distance with Earth of Шаблон:Convert, which corresponds to 0.078 lunar distances (LD). On 8 February 2034, it will approach Earth to a distance of Шаблон:Convert or 8.2 LD.[2]
2018 flyby
On 6 February 2018, it passed at a nominal distance of Шаблон:Convert from Earth (0.49 LD). One hour earlier, it passed the Moon at Шаблон:Convert.[2] Шаблон:Multiple image
Physical characteristics
The body's physical parameter remain largely unknown.[2] Based on a generic magnitude-to-diameter conversion, and for an absolute magnitude of 26.541, the asteroid measures 15 and 40 meters in diameter, assuming a carbonaceous and stony albedo of 0.057 and 0.20, respectively.[3] No rotational lightcurve has been obtained from photometric observations, and no rotation period, shape or pole has been determined.[2]
Naming
As of 2018, this minor planet has not been numbered or named.[1]
See also
References
External links
- MPEC 2018-C13 : 2018 CC, Minor Planet Circular, 4 February 2018
- Near-Earth Asteroid 2018 CC approaching the Earth (with image), The Virtual Telescope, 6 February 2018
- Asteroid 2018 CC close approach, International Asteroid Warning Network (IWAN), 4 February 2018
- Watch online as 2 asteroids sweep close this week (2018 CB and 2018 CC), EarthSky, 5 February 2018
- Шаблон:NeoDys
- Шаблон:ESA-SSA
- Шаблон:JPL small body
Шаблон:2018 in space Шаблон:Small Solar System bodies Шаблон:Authority control
- Английская Википедия
- Apollo asteroids
- Minor planet object articles (unnumbered)
- Discoveries by the Catalina Sky Survey
- Near-Earth objects in 2018
- Astronomical objects discovered in 2018
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