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Astronomy
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Photometry and Astronomical Filters
Grade Level
Astronomy
AST.083 Photometry and Astronomical Filters
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In a simple photometric calibration, what is a zero point used for?
A
It makes a saturated detector linear again.
B
It shifts instrumental magnitudes onto a chosen standard magnitude scale.
C
It removes all need for filters.
D
It changes the star's true distance from Earth.
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