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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 
regression of nodes
Astronomy; Moon
The backwards movement of the Moons nodes relative to the direction of orbit.
revolution
Astronomy; Moon
The movement of one body around another in an orbit. A complete revolution is a complete orbit. Not to be confused with rotation.
Saber's beads
Astronomy; Moon
Detached points of light seen along the limb of very young and old lunar crescents. The striking resemblance to 2nd and 3rd contacts during a total solar eclipse was first noted ...
Saros cycle
Astronomy; Moon
A cycle of lunar months lasting 18 years and 11. 3 days, the time it takes the Moon, the Earth, and the Sun to return to the same position relative to each other.
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- Astrometry (117)
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- 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)