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CHAPTER 23 VOCAB
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16
Science
Professional
02/15/2011

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Term
constellations-
Definition
section of the sky that contains recognizable star pattern.
Term
circumpolar patterns-
Definition
are stars seen at all the time of the year and night.
Term
spectrum-
Definition

millions of colors of light.

 

Term
continuous spectrum-
Definition

a spectrum that show all colors of light.

 

Term
spectograph-
Definition
a instrument that is used to break stars light.
Term
emission lines-
Definition
lines that are made of certain wave lenghts.
Term
absobsition spectrum-
Definition
a spectrum that is prouduced when a light from a hot solid passes through a cooler gas.
Term
apparent magnitude-
Definition
how bright a light looks.
Term
absoulute magnitude-
Definition
the actual brightness of a light.
Term
parallax-
Definition
a stars apparent shift in position.
Term
hertzspung russel diagram-
Definition
show the relationship bewtween a stars surface temperture and it absolute magnitude
Term
main sequence-
Definition
the diagonal pattern of stars.
Term
supernova-
Definition
the death of a large star by explosion.
Term
nuetron star-
Definition
a star in which nearly all the particles have become nuetrons
Term
pulsar-
Definition
a spinning nuetron.
Term
black hole-
Definition
is an object htat is 3 times the mass of the sun squeezed into a ball only 10 km across.
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