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单词 almucantar
释义

almucantar /'ælmjʊ,kæntɚ/

英汉-汉英词典
n. 平纬圈,等高圈
词组 | 习惯用语
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  • reluctant adj. 不情愿的, 勉强的
  • tarantula n. 鸟蛛,狼蛛 Tarantula圈状星云
  • alimentary adj. 食物的,营养的
  • Antarctica n. 南极洲
almucantar n. 地平纬圈;高度方位仪

网络短语:
almucantar r 高度方位仪
almucantar staff 平纬圈杆
almucantar circle 地平纬圈
almucantar altitude circle 等高圈
英语百科

Almucantar

The celestial sphere with the zenith and almucantar marked in red, the horizon in green, and the path of a star or the Sun in blue.

An almucantar (also spelled almucantarat or almacantara) is a circle on the celestial sphere parallel to the horizon. Two stars that lie on the same almucantar have the same altitude.

The term was introduced into European astronomy by monastic astronomer Hermann Contractus of Reichenau, Latinized from the Arabic word al-muqanṭarah ("the almucantar, sundial", plural: al-muqanṭarāt), derived from qanṭarah ("arch, bridge")

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更新时间:2025/6/19 18:09:26