Английская Википедия:4942 Munroe
Шаблон:Use dmy dates Шаблон:Infobox planet
4942 Munroe, provisional designation Шаблон:Mp, is an asteroid from the inner regions of the asteroid belt, approximately 3 kilometers in diameter. It was discovered on 24 February 1987, by Belgian astronomer Henri Debehogne at ESO's La Silla Observatory in northern Chile, and later named after American cartoonist and former NASA roboticist Randall Munroe.[1]
Orbit and classification
Munroe orbits the Sun in the inner main-belt at a distance of 1.9–2.5 AU once every 3 years and 3 months (1,193 days). Its orbit has an eccentricity of 0.14 and an inclination of 4° with respect to the ecliptic.[2] It was first identified as Шаблон:Mp at the Leiden Southern Station (Johannesburg-Hartbeespoort) in 1955, extending the body's observation arc by 32 years prior to its official discovery observation.[1]
Physical characteristics
In the SMASS taxonomy, Munroe is characterized as an X-type asteroid. It has an absolute magnitude of 13.5.[2]
Diameter and albedo
According to the survey carried out by the NEOWISE mission of NASA's Wide-field Infrared Survey Explorer, Munroe measures 3.453 kilometers in diameter and its surface has an exceptionally high albedo of 0.936.[3] On his private blog, Randall Munroe (after whom the asteroid is named) calculates that the asteroid is between 6 and 10 kilometers in diameter, comparable in size to the Chicxulub asteroid.[4]
Lightcurves
As of 2017, MunroeШаблон:'s rotation period, poles and shape remain unknown.[2][5]
Naming
In 2013, it was named after Randall Munroe (born 1984), a former NASA roboticist and the author of the webcomic xkcd.[6] The name was chosen by xkcd readers Lewis Hulbert and Jordan Zhu.[7] The official naming citation was published on 22 July 2013 (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:Minor planets navigator Шаблон:Small Solar System bodies Шаблон:Randall Munroe Шаблон:Authority control
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- Английская Википедия
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- Astronomical objects discovered in 1987
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