Star Brightness Vocabulary

Front

Star

Back

A celestial ball of burning gas

Front

Luminosity

Back

The apparent brightness of a celestial object as seen from Earth

Front

Magnitude

Back

The size of an object

Front

Apparent Magnitude

Back

The size of a celestial object as seen from Earth

Front

Constellation

Back

A group os stars in the night sky that form a pattern

Front

Lightyear

Back

The unit of astronomical distance that equals the distance that light travels in 1 year

Front

Betelgeuse

Back

• It is a reddish star about 1000 times bigger than the sun and more than 600 light years away. It is also the ninth-brightest star in the night sky and second-brightest in the constellation of Orion.

Front

Habitable Zone

Back

An area around a star that is approximately the right distance to support liquid water on the surface of a planet.

Front

Sirius

Back

• The brightest star in the night sky. It is also 500,000 times further from us than the sun.

Front

Our sun appears brighter than other stars because of its ______________ to Earth.

Back

closeness