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Astronomy
The scientific study of planets, stars, black holes, comets and other celestial bodies that make up outer space.
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Astronomy > Moon 
selenology
Astronomy; Moon
The science dealing with the study of the Moon. From the Greek goddess, Selene.
sidereal month
Astronomy; Moon
A lunar month measured by a return to a specific position marked by a certain star: a period of 27. 32166 days.
solar eclipse
Astronomy; Moon
An eclipse caused when the Moon comes directly between the Earth and the Sun, temporarily blocking out Sun's disk in the sky.
spring tide
Astronomy; Moon
The highest tides in a lunar month, occurring near new and full moons, when the Earth, Sun, and Moon are aligned.
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- Astrometry (117)
- Astronaut (14221)
- Comets (3684)
- Cosmology (251)
- Galaxy (567)
- General astronomy (16061)
- Mars (1797)
- Mathematical astronomy (130)
- Moon (1858)
- Planetary science (7689)
- Planetology (678)
- Radio astronomy (37)
- Solar system (663)