Patterns and pictures made from stars in the night sky are called

How many constellations are there?

Higher light wavelengths have ___ energy

What does the spectrum of a star tell us?

If a star has a negative apparent magnitude, what does this mean?

Luminosity depends on

What powers stars?

Which is NOT an inner layer of a star?

Which is NOT part of the atmosphere of a star?

How do most stars exist?

Tight, spherical clusters of stars that are the same age and the same distance from Earth are called

Stars are classified by their

A star's ___ determines its temperature and color

Which has the shortest life span?

Why do higher-mass stars have short life spans?

When do stars leave the main sequence?

Which star leaves the main sequence and turns into a red giant and later a white dwarf?

What holds galaxies together?

It is thought that more than 90% of the universe is made of

How are galaxies distributed throughout the universe?

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