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| The color of a star depends on its |
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| What can a scientist learn about a star from its spectrum |
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| its composition and temperature |
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| Stars appear to make one complete circle around Polaris every 24 hours because of |
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| What color are the hottest stars |
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| The actual motion of stars is difficult to see because |
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| the stars are very far from Earth |
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| the brightness of a star as it would be at a distance of 32.6 light-years from Earth |
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| the band of colors produced when white light passes through a prism |
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| an apparent shift in the position of an object when viewed from different locations |
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| the brightness of a star as seen from Earth |
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| the brightness of a star as it would be at a distance of 32.6 light-years from Earth |
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| The H-R diagram shows the relationship of a stars surface temperature and its |
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| At about 10,000 C hydrogen begins to change into helium and energy is released in a process called |
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| A small, hot star near the end of its life is a type of star called |
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| As gravity pulls gas and dust into a sphere that becomes denser and hotter, and a sunlike star begins to form it is called |
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| a gigantic explosion that causes the death of a large star |
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| a star in which the electrons and protons have become neutrons |
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| a star that expands and cools once it runs out of hydrogen |
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| a massive and dense object from which even light cannot escape its gravity |
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| small bodies that eventually became the planets and moons |
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| the cloud of gas and dust that formed our solar system |
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| a large cloud of gas and dust in the empty regions of space |
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| a measure of the energy of motion of the particles in an object |
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| the average distance between the sun and Earth |
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| the process by which the sun generates energy |
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| A nebula is held together by the balance of |
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| the inward force of gravity and outward pressure |
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| After the solar nebula collapsed, its center became very hot, and |
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| planetesimals formed in the disk |
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| The interior of the sun is composed of the convective zone, the radiative zone and the |
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| The matter at the center of the solar nebula became the |
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