English Wikipedia - The Free Encycl...
Download this dictionary
Luminosity
In
astronomy
,
luminosity
is the total amount of energy emitted by a
star
,
galaxy
, or other
astronomical object
per unit time. It is related to the brightness, which is the luminosity of an object in a given spectral region.
See more at Wikipedia.org...
© This article uses material from
Wikipedia
®
and is licensed under the
GNU Free Documentation License
and under the
Creative Commons Attribution-ShareAlike License