Define the following
words:
celestial
sphere
circumpolar
constellations
dark
cloud constellations
draconic
month
ecliptic
equinoxes
(March and September)
helical
rising and setting
intercalation
Julian
calendar
lunar
calendar
lunar
standstill
Metonic
cycle
nadir
nodes
retrograde
motion
saros
cycle
sidereal
month
solar
calendar
solstices
(June and December)
synodic
month
synodic
period of Venus (“Venus Year”)
tropics
(Cancer and Capricorn)
zenith
zenith
passage
zodiac