Английская Википедия:124 Alkeste

Материал из Онлайн справочника
Перейти к навигацииПерейти к поиску

Шаблон:Short description Шаблон:Infobox planet

Alkeste (minor planet designation: 124 Alkeste) is a main-belt asteroid, and it is an S-type (silicaceous) in composition. C.H.F. Peters discovered the asteroid on August 23, 1872, from the observatory at Hamilton College, New York State. The name was chosen by Adelinde Weiss, wife of the astronomer Edmund Weiss, and refers to Alcestis, a woman in Greek mythology.[1]

Файл:124Alkeste 20030624 (MultichordOccultation).jpg
The observed shape of Alkeste from a stellar occultation in 2003

A 20 chord stellar occultation by Alkeste was observed when the asteroid passed in front of the third magnitude star Beta Virginis on June 24, 2003. The event was visible from Australia and New Zealand.[2]

The asteroid has been observed in 3 more stellar occultation events.[3]

Photometric observations of this asteroid in 2016 produced lightcurves indicating a rotation period of 9.9 hours with an amplitude variation of 0.18 in magnitude. This result matched previous determinations of the spin rate. The lightcurve was found to vary over the observation period as the viewing angle changed, suggesting the shadowing of topographic features.[4]

References

Шаблон:Reflist

External links

Шаблон:Use dmy dates Шаблон:Minor planets navigator Шаблон:Small Solar System bodies


Шаблон:S-beltasteroid-stub

  1. Шаблон:Cite book
  2. Ошибка цитирования Неверный тег <ref>; для сносок RASNZ2003 не указан текст
  3. Шаблон:Cite web
  4. Ошибка цитирования Неверный тег <ref>; для сносок Pilcher2016 не указан текст