赤纬

Right ascension and declination as seen on the inside of the celestial sphere. The primary direction of the system is the vernal equinox, the ascending node of the ecliptic (red) on the celestial equator (blue). Declination is measured northward or southward from the celestial equator, along the hour circle passing through the point in question.

赤纬（英文Declination；缩写为Dec；符号为δ）是天文学中赤道座标系统中的两个坐标数据之一，另一个坐标数据是赤经。赤纬与地球上的纬度相似，是纬度在天球上的投影。赤纬的单位是度，更小的单位是“角分”和“角秒”，天赤道为0度，天北半球的赤纬度数为正数，天南半球的赤纬的度数为负数。天北极为+90°，天南极为-90°。值得注意的是正号也必须标明。

例如，织女星的确切赤纬（历元2000.0）为+39°47'01"。

在观测者天顶的赤纬与该观测地的纬度相同。

单词	declination
释义	declination /ˌdeklɪ'neɪʃ(ə)n//ˌdɛklə'neʃən/ 英汉-汉英词典 n. 倾斜,下倾赤纬磁偏角形容词: declinational 词组 \| 习惯用语您要查找的是不是： inclination n. 倾向；意愿；趋势；斜坡；倾斜度 declension n. 词尾变化,格变化,倾斜,衰退 declination n. 倾斜；偏差；衰微；下倾；赤纬；磁偏角 declination angle 倾斜角；偏转角 declination compass 磁偏计；磁偏针 solar declination [天] 太阳赤纬 declination circle 赤纬圈；赤纬；赤纬盘 declination axis [天] 赤纬轴；偏差轴；斜轴 magnetic declination [地物] 磁偏角; 磁力偏差; declination tide 赤纬潮 minus declination 内旋转隐斜视 mutation frequency declination 突变频率衰退网络短语: map magnetic declination 图幅磁偏角 declination difference 赤纬差 Declination Letter 婉拒信 compass declination 磁偏角；罗经磁偏；磁偏罗盘；详细翻译原声例句《时代周刊》百大人物 It's a war of declination because Ukraine is fighting for the right to exist. 这是一场衰退战争，因为乌克兰正在为生存的权利而战。塔中恋人（下） And he showed her a book ruled in columns, headed 'Object, ' 'Right Ascension, ' 'Declination, ' 'Features, ' 'Remarks, ' and so on. 他给她看了一本分栏的书，标题是“天体” 、“赤经” 、“赤纬” 、“特征” 、“备注” 等等。 TED-Ed（视频版） So the Earth's axial tilt partially explains why the Sun changes positions in the sky and the analemma's length represents the full 46.8 degrees of the sun's declination throughout the year. 所以地球的自转轴的倾斜能够部分解释太阳在天空中位置变化的原因，地球仪的8字曲线的长度也代表了太阳在一整年倾斜的46.8°的角度。亨利·亚当斯的教育（下） Such lessons as summer taught, winter tested, and one had only to watch the apparent movement of the stars in order to guess one's declination. 这样的课程是夏天教的，冬天测试的，人们只需要观察星星的明显运动就可以猜测一个人的赤纬。中文百科赤纬赤纬（英文Declination；缩写为Dec；符号为δ）是天文学中赤道座标系统中的两个坐标数据之一，另一个坐标数据是赤经。赤纬与地球上的纬度相似，是纬度在天球上的投影。赤纬的单位是度，更小的单位是“角分”和“角秒”，天赤道为0度，天北半球的赤纬度数为正数，天南半球的赤纬的度数为负数。天北极为+90°，天南极为-90°。值得注意的是正号也必须标明。例如，织女星的确切赤纬（历元2000.0）为+39°47'01"。在观测者天顶的赤纬与该观测地的纬度相同。英语百科 Declination 赤纬 In astronomy, declination (abbreviated dec; symbol δ) is one of the two angles that locate a point on the celestial sphere in the equatorial coordinate system, the other being hour angle. Declination's angle is measured north or south of the celestial equator, along the hour circle passing through the point in question. 近义、反义、联想词近义词 n. condition, status, slope, incline, side, angular distance, refusal 联想词 latitude纬度;inclination倾向;longitude经度;meridian子午线的;ascension上升;equator赤道;axis轴;reversal逆转;
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declination /ˌdeklɪ'neɪʃ(ə)n//ˌdɛklə'neʃən/

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网络短语:

赤纬

Declination 赤纬

近义词

联想词