Front

The light of Proxima Centaury takes 4.3 years to reach Earth. What does it mean?

Back

The star is 4.3 light years from the Earth.

Front

Which section of the spectrum is the ONLY one we can see? Options: X-rays, Visible Light, Gamma Rays, Ultraviolet Rays

Back

Visible Light

Front

Our galaxy is a ________ galaxy.

Back

Spiral

Front

The blue section of the wave is measuring _________________.

Back

wavelength

Front

Look at the H-R Diagram. Where is Pollux? Options: In the main sequence, with the Super Giants, with the Giants, with the White Dwarfs

Back

with the Giants

Front

Look at the H-R Diagram. Where is Polaris? Options: In the main sequence, with the Super Giants, with the Giants, with the White Dwarfs

Back

with the Super Giants

Front

Red stars are the _____________.

Back

coolest

Front

Blue stars are the _____________.

Back

hottest

Front

Which one is the correct order from hottest to coolest stars? Options: blue, yellow, orange, red

Back

blue, yellow, orange, red

Front

How many stars are between the Earth and the Sun?

Back

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