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11 Cards in this Set
- Front
- Back
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stars are glowing balls of ....=.....
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gasses, hydrogen, helium and other elements
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brightness is called its....
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magnitude
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magnitude depends on.... from the sun
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size, temp., distance
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.... how bright a star appears to us
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apparent magnitude
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with naked eye:...(brightest) to ....(faintest)
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+1,+6
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with telescope: ....(or more) to .... or more
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-29,+29
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true brightness is called....- how bright a star really is
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absolute magnitude
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based on all stars are the same .... from the earth
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distance
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surface .... determines color
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temp.
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coolest stars
hottest stars |
red,blue
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small to medium size planets like our sun
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dwarfs
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