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6th science ch4 sec2

6th science ch4 sec2 Characteristics of stars

QuestionAnswer
Constellation Patterns of stars
spectrograph A device that breaks light into colors and produces an image of the resulting spectrum
Apparent Brightness Brightness that is seen from Earth
Absolute brightness The brightness the star would have if it were a standard distance from Earth
light-year The distanced that light travels in on year about 9.5 million Kilometers
Parallax the apparent change in position of an object when you look at it from different places
H-R diagram shows relationship between surface temp. and absolute brightness
Main sequence diagram from a diagonal area, more that 90% of the stars including the sun are main sequence stars
Created by: apetosa
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