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Khi nào dùng Celestial Coordinate Systems 3D Explorer

Use this explorer when you need to see how a published RA/Dec position relates to what is actually above your horizon - and skip it when you only want star patterns or the Sun path.

  • Classroom demos of why stars rise and set while their RA/Dec stay fixed
  • Showing how the celestial pole altitude equals the observer latitude
  • Introducing the 23.44 degree obliquity of the ecliptic

This is an educational grid visualization at the J2000 epoch, not a live star catalog or planetarium.


So lieu chinh cua he toa do troi

Compare so lieu chinh cua he toa do troi: xich kinh, xich vi, do cao va phuong vi.
Toa do troi: RA, xich vi, do cao va khoang phuong vi.
Toa doKhoang
Xich kinh (RA)0h-24h ve dong (1h = 15 do)
Xich vi (Dec)-90 den +90 do
Do cao (Alt)0-90 do
Phuong vi (Az)0-360 do tu huong Bac
Do nghieng hoang dao23.44 do (J2000)

Walk the controls in the step-by-step guide, or compare options in vs alternatives. Open the Celestial Coordinate Systems 3D Explorer.