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abstraction > hypothesis > theory > astronomy theory > galaxy theory > Tully-Fisher relation |
Tully-Fisher relation comparison table |
Subject | is a kind of | has definition |
---|---|---|
galaxy theory | astronomy theory | |
Tully-Fisher relation | galaxy theory | An observed relation between the intrinsic luminosity of a spiral galaxy and the rotational speed of its stars. More luminous galaxies have stars that are moving faster. |
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