Bruce McClure has served as lead writer for EarthSky's popular Tonight pages since 2004. He's a sundial aficionado, whose love for the heavens has taken him to Lake Titicaca in Bolivia and sailing in the North Atlantic, where he earned his celestial navigation certificate through the School of Ocean Sailing and Navigation. He also writes and hosts public astronomy programs and planetarium programs in and around his home in upstate New York.
The ecliptic and celestial equator intersect at the spring and autumn equinox points. The ecliptic represents the sun’s apparent yearly path in front of the constellations of the Zodiac. The celestial equator is simply a circle drawn around the sky, above Earth’s equator.