For faster navigation, this Iframe is preloading the Wikiwand page for 纬线.

纬线

地球的Mollweide等面积投影地图
经度(λ)
经度线投射在图上看似弯曲和垂直的线,但实际上是大圆的一半。
纬度(φ)
纬度线投射在图上看似水平的平行线,但实际上是不同半径的圆。有相同特定纬度的所有位置都在同一个纬线上。
赤道的纬度为0°,将行星平分为南半球北半球

纬线经线一样是人类为度量方便而假设出来的辅助线,定义为地球表面某点随地球自转所形成的轨迹。任何一根纬线都是圆形而且两两平行。纬线的长度是赤道的周长乘以纬线的纬度余弦,所以赤道最长,离赤道越远的纬线,周长越短,到了两极就缩为0。纬度表示南北方向的位置。

重要的纬线

  • 北极圈(66° 33' 35.325" N)(以2014年夏至为准)
  • 北回归线(23° 26' 14.675" N)(以2014年夏至为准)
  • 赤道(纬度0°)
  • 南回归线(23° 26' 14.441" S)(以2014年冬至为准)
  • 南极圈(66° 33' 35.559" S)(以2014年冬至为准)

纬线长度

纬线长度与纬度的余弦值成正比,故60°纬线的长度为赤道的一半,约为2万公里

各纬度条目

参见

{{bottomLinkPreText}} {{bottomLinkText}}
纬线
Listen to this article

This browser is not supported by Wikiwand :(
Wikiwand requires a browser with modern capabilities in order to provide you with the best reading experience.
Please download and use one of the following browsers:

This article was just edited, click to reload
This article has been deleted on Wikipedia (Why?)

Back to homepage

Please click Add in the dialog above
Please click Allow in the top-left corner,
then click Install Now in the dialog
Please click Open in the download dialog,
then click Install
Please click the "Downloads" icon in the Safari toolbar, open the first download in the list,
then click Install
{{::$root.activation.text}}

Install Wikiwand

Install on Chrome Install on Firefox
Don't forget to rate us

Tell your friends about Wikiwand!

Gmail Facebook Twitter Link

Enjoying Wikiwand?

Tell your friends and spread the love:
Share on Gmail Share on Facebook Share on Twitter Share on Buffer

Our magic isn't perfect

You can help our automatic cover photo selection by reporting an unsuitable photo.

This photo is visually disturbing This photo is not a good choice

Thank you for helping!


Your input will affect cover photo selection, along with input from other users.

X

Get ready for Wikiwand 2.0 🎉! the new version arrives on September 1st! Don't want to wait?