How long a star lives depends on

A light-year is a unit of ____

Parallax can't be used on a star if the star is too

The Heretzsprung-Russell diagram graphs a stars

The earliest stage of a star's life is

A star begins in a

A neutron star that appears to produce pulses of radio waves

Which of the following is not part of the electromagnetic spectrum?

Patterns of stars in the sky are called

The distance between the crest of one wave of electromagnetic radiation and the crest of the next one is its

When a star runs out of fuel, it CANNOT become a

A star system in which one star blocks the light from another is called

A device used to collect radio waves from objects in space is called

Newton invented

A star nursery where new stars are born

Nuclear fusion results when

A quasar is a type of

The hottest stars are

Brightness of a star as seen from Earth

Our sun is a

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