Equinox
topicAstronomy
infoSun soltices, North Star, solar solstices, solar equinoxes
local advertisementsPtolemaic system
Ptolemaic system, Ptolemaic astronomy, geocentric systems, geocentric models, geocentrism, astronomy, astronomers
galileo.rice.edu
Southern Cross
35 degrees south latitude, celestial poles, crucis, Roscrucians
earthsky.org