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--- wiki:astronomy:coordinate_systems [2023/11/11 19:12] – Roy Prouty
+++ wiki:astronomy:coordinate_systems [2023/11/11 19:42] (current) – Roy Prouty
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 ===== Angles on the Sky =====
+Primer on [[~spherical|Spherical Coordinates]].
+==== Horizontal Coordinate System ====
 Discuss Altitude and Azimuth, discuss poles, fundamental plane.
@@ Line 6: / Line 10: @@
+==== Equatorial Coordinate System ====
 Discuss degrees of arc, arc mins, arc secs.
@@ Line 21: / Line 25: @@
 Discuss how to determine an object's alt/az based on RA/DEC/Time/Lat/Lon.
+==== Ecliptic Coordinate System ====
+Nah
+{{tag>[math coordinates not-done]}}