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ecliptic × 58the-sun × 10
the-moon × 10
orbit × 8
earth × 6
coordinate × 5
equinox × 5
zodiac × 5
solar-system × 4
celestial-mechanics × 4
constellations × 4
precession × 4
planet × 3
rotation × 3
solar-eclipse × 3
inclination × 3
orbital-mechanics × 2
terminology × 2
lunar-eclipse × 2
declination × 2
horizon × 2
pole × 2
apparent-motion × 2
star × 1
observational-astronomy × 1