Eclipses, Tides, and Moon Phases Vocabulary Flashcard

Front

What is aphelion?

Back

The point in the orbit farthest from the sun.

Front

Which term refers to an imaginary line about which a body rotates?

Back

Axis

Front

crescent

Back

The shape of a thin, illuminated sliver of the moon or a planet's disk.

Front

When does an eclipse occur?

Back

One celestial body moves into the shadow of another.

Front

During which event does Earth experience approximately equal day and night lengths?

Back

Equinox

Front

What phase is the moon in when more than half but not all of its illuminated hemisphere is visible?

Back

Gibbous

Front

What is totality in the context of eclipses?

Back

The phase when the celestial bodies are aligned, causing complete obscuration.

Front

Which term is related to the moon?

Back

Lunar

Front

What does "waning" describe in celestial terms?

Back

The decrease in the visible illuminated portion of a celestial body.

Front

What is the orbital motion of one celestial body around another called?

Back

Revolution