Advanced Celestial Sphere

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This Demonstration shows the celestial sphere with constellations, constellation families, the thousand brightest stars, the ecliptic plane of the solar system, the celestial equator (the plane of the Earth's equator), the first point of Aries (where the celestial equator and ecliptic intersect), and a zenith.

Contributed by: Jim Arlow (March 2011)
Based on a program by: Jeff Bryant
Open content licensed under CC BY-NC-SA



This is a new version of Jeff Bryant's excellent Demonstration, "The Celestial Sphere". I have refactored the code to make it a bit more reusable. I have also added the thousand brightest stars, the celestial equator, the ecliptic and the first point of Aries. This Demonstration also allows highlighting of individual constellations and viewing of constellations by family, for example, the Zodiac.

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