Assertion: star's magnitude | /r/HasProperty | seen by observer
Facets:
value: on earth
type: LOCATION
Source sentences:
text: magnitude - the a measure of the brightness of a ~ (usually as seen by an observer on Earth); in ancient astronomy, the naked eye stars were divided into 6 categories or magnitudes of brightness with 1st magnitude being the brightest and 6th the dimmest; ...
text: Apparent Magnitude of a celestial body is a measure of its brightness as seen by an observer on Earth, adjusted to the value it would have in the absence of the atmosphere.