# Celestial Sphere

Just a bunch of links for now.

<https://www.britannica.com/science/precession-of-the-equinoxes>  
<https://www.wikiwand.com/en/March_equinox>  
<https://www.wikiwand.com/en/Ecliptic>  
[T3rminatr 07:29, 17 February 2008 (UTC)](https://commons.wikimedia.org/wiki/File:Orbital_Planes.svg), Public domain, via Wikimedia Commons  
<https://www.wikiwand.com/en/Gregorian_calendar>  
<https://www.wikiwand.com/en/Sidereal_time>  
<https://beltoforion.de/en/stellarium_video/index.php>  
<https://github.com/beltoforion/kalstar>