For faster navigation, this Iframe is preloading the Wikiwand page for 超星系坐标系统.

超星系坐标系统

超星系坐标系统,是天球坐标系统之一,他的赤道是校准在超星系平面上。这个系统用于在地的宇宙之中,主要是参考邻近的星系团,包含室女座星系团巨引源英仙-双鱼超星系团等,在平面(二维空间)的分布状态。虽然早在200年前的威廉·赫协尔就注意到星系分布在一个平面上的现象,但超星系坐标的基准平面在1953年才被热拉尔·佛科留斯从夏普力-恩慈目录中予以确认。

经由会议决定,超星系的经度和纬度类比于银河坐标系统的银经(l)和银纬(b),分别标示为SGL和SGB,坐标经度的起点(SGL=0)定义为银河平面与超星系平面的交叉点。

定义

  • 超星系坐标系统的北极点(SGB = 90°)位于银河坐标系统的银经l=47.37°,银纬b=+6.32°之处。在赤道坐标系统中(J2000.0)则是赤经RA=18.9 h ,赤纬Dec=+15.7°。
  • 坐标零点(SGB=0°, SGL=0°) 位于银经 l = 137.37°,银纬 b = 0°之处;对应到J2000.0分点的赤道坐标系统中大约在赤经RA=2.82 h,赤纬 Dec=+59.5°。

参见

外部链接

{{bottomLinkPreText}} {{bottomLinkText}}
超星系坐标系统
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?