Chapter 1 Vocab Astronomy

Front

Grouping of stars representing a figure or object.

Back

Constellation

Front

A large round pit from a meteoroid impact.

Back

Crater

Front

A loose collection of ice and dust orbiting the sun in a long, narrow path.

Back

Comet

Front

A system for organizing time defining the start, duration, and divisions of a year.

Back

Calendar

Front

Imaginary line through the planet's center and poles, around which it rotates.

Back

Axis

Front

Days when neither hemisphere tilts toward or away from the sun.

Back

Equinox

Front

A push or pull on an object.

Back

Force

Front

Attractive force between objects; moves them downhill

Back

Gravity

Front

Partial or total blocking of one object in space by another

Back

Eclipse

Front

Tendency of an object to resist motion change.

Back

Inertia