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Home Q & A Board Science-Related Homework Help Physics
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staedtler staedtler
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7 years ago
An eclipsing binary system consists of
A)   a star that is periodically eclipsed by the Moon.
B)   two stars that periodically eclipse each other, as seen from the Earth.
C)   two stars in which spectral lines move back and forth periodically due to Doppler shift, indicating mutually orbiting stars.
D)   two mutually orbiting and gravitationally bound stars that are close enough to be resolved when viewed from the Earth.
Textbook 
Discovering the Universe

Discovering the Universe


Edition: 7th
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discovererdiscoverer
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staedtler Author
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7 years ago
Grinning Face Exactly what I needed
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