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physical object > natural object > celestial body > collection of stars > star system > binary star > close binary
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close binary comparison table
Subject has energy release become has acronym has recovery time has period has eclipse duration has outburst start time is a kind of has peak brightness has emission line has use has synonym has definition
eclipsing binary       close binary    Eclipsing variables whose orbital plane lies so nearly in the line of sight that eclipses, as seen from the Earth, can occur and can be detected from their light curves.
nova1044 ergsnaked eye starCV    emission line star  nova peak brightness distance determinationexplosive variableA stars that undergoes an explosion during which its brightness increases by up to ten magnitudes. Usually the following phases are distinguished (in order of time): pre-maximum, principal, diffuse enhanced, Orion, nebular and post-nova.

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