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| Sections of the sky that contain recognizable star patterns. |
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| Are stars seen at all times of the year and all times of the night. |
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| Millions of colors of white light. |
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| A spectrum thats shows all colors of light. |
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| An instrument used to break a star's light into a spectrum. The spectrum gives astronomers information about the composition and temperature of a star. |
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| Lines that are made when certain wavelenghts,or color, of light are given off, or emitted, by hot gases. Each element has its own set of bright emission lines which are like fingerprints for the elemnts. |
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| A spectrum that is produced when light from a hot solid passes through a cooler gas. |
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| How bright a light looks. |
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| Is the actual brightness of a light; this is a combination of a star's apparent magnitude and its distance from earth. |
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| A stars apparent shift in position; stars near earth seem to move compared with more-distant stars as earth revolves around the sun. |
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| Hertzsprung-russell diagram or h-r diagram |
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| Diagram created by combing the work of an astronomer named Ejnar hertzsprung and henery norris russell that is a graph showing the relationship between a star's surface temperature and its absolute magnitude. |
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| The death of a large star by explosion. |
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| A star in which nearly all the particles have become neutrons. |
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| Is an object with more than 3 times the mass of the sun squeezed into the ball only 10 km across. |
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