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The Rotating Sky Lab — Instructor Resources


The NAAP Rotating Sky Lab pedagogical objectives are aimed increasing an understanding the horizon coordinate system and how the observer relates to the celestial equatorial coordinate system – that this relationship is primarily governed by the rotation of the earth.


Course Integration

The module is designed to closely follow the Basic Coordinates & Seasons Lab. The Motions of the Sun Lab is an excellent follow-up module. Generally, this module fits into the segment of a course which covers coordinates or basic observations.


  • The earth isn't perfectly round. This slightly modifies the mapping of horizon coordinates to the celestial sphere for a particular latitude.