“天图投影上的圆”的版本间差异

来自Shiyin's note
跳到导航 跳到搜索
（以“*On the atioff projection map, how to draw a circle (e.g. telescope field of view)? suppose, telescope pointed at (Ra0,Dec0), FOV is a circle with radius R0 #Change ...”为内容创建页面）
（没有差异）

2013年12月19日 (四) 03:38的版本

  • On the atioff projection map, how to draw a circle (e.g. telescope field of view)? suppose, telescope pointed at (Ra0,Dec0), FOV is a circle with radius R0
  1. Change the coordinate system from celestial to the designed coordinate (pole at Ra0,Dec0).#Then the circle in the new coordinate system is simply DecP=90-R0#change the new coordinate system back to celestial
取自“http://202.127.29.3/~shen/wiki/index.php?title=天图投影上的圆&oldid=867”