Английская Википедия:3552 Don Quixote
Шаблон:Infobox planet 3552 Don Quixote, provisionally designated Шаблон:Mp, is an exceptionally eccentric asteroid, classified as a near-Earth object of the Amor group, Mars-crosser and Jupiter-crosser, as well as a weakly active comet.
Discovery and naming
The asteroid was discovered on 26 September 1983, by Swiss astronomer Paul Wild at Zimmerwald Observatory near Bern, Switzerland.[1] It was named after the comic knight who is the eponymous hero of CervantesШаблон:' Spanish novel Don Quixote (1605).[2] The approved naming citation was published by the Minor Planet Center on 2 December 1990 (Шаблон:Small).[3]
Orbit and characteristics
Don Quixote is characterized as a dark D-type asteroid in the Tholen and SMASS taxonomy.[4]
It has a highly inclined comet-like orbit of 31 degrees that leads to frequent perturbations by Jupiter.[5] Don Quixote measures 18.4 kilometres in diameter and has a rotation period of 7.7 hours.[4][6]
Due to its comet-like orbit and albedo, Don Quixote has been suspected to be an extinct comet.[7] However, infrared observations with the Spitzer Space Telescope at 4.5 μm revealed a faint coma and tail around the object.[6] The cometary activity is inferred by carbon dioxide (Шаблон:CO2) molecular band emission. In March 2018 a tail was observed at visible wavelengths for the first time.[8] The observation of cometary features during two apparitions suggests that cometary activity is recurrent and Don Quixote is most likely a weakly active comet.[9]
Notes
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:NeoDys
- Шаблон:JPL small body
Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies
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- ↑ Шаблон:Cite journal
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