Star with absolute magnitude -4 has greater luminosity.
Luminosity is refer to absolute measure of radiations from electromagnetic power (light), measure of the radiant power which is emitted by a light-emitting object over time. In astronomy, luminosity can also be define as the total amount of electromagnetic energy that is emitted by star per time .
The lesser the absolute magnitude the greater the luminosity.
Therefore, Star with absolute magnitude -4 has greater luminosity.
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