Assertion: apparent brightness | /r/HasProperty | flux
Facets:
value: often
type: TEMPORAL
value: more generally
type: DEGREE
Source sentences:
text: the Apparent Brightness (flux) measured via photometry, and
text: A star's apparent brightness (its flux) decreases with the square of the distance.
text: The apparent brightness is often referred to more generally as the flux and abbreviated F (as I did above).
text: Two identical stars have different apparent brightnesses (fluxes).