How Big Is That Star - Measuring Binary Stars Page 4
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4Name:
___________________________________________________________________________________
Date:
_ ___________
Class: ____________________________________________
Vela X-‐1
Light curve for binary
s ystem Vela X-‐1.
Using the graph above, determine and record the following (be sure to include
units):
t
: __________________
t
: __________________
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2
The orbital velocity
o f Vela X-‐1 is known
t o
b e
2 80 km/sec.
Using d=v t, determine the size of each star in Vela X-‐1.
S how your work
b elow, or
on additional paper, if you need more room.
Write the size of each star in Vela X-‐1
b elow (make sure
t o
i nclude
u nits):
d
: __________________
d
: __________________
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2
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