Assertion: focal ratio | /r/HasProperty | f-ratio
Facets:
value: in astronomy
type: LOCATION
value: commonly
type: TEMPORAL
Source sentences:
text: In astronomy, the f-number is commonly referred to as the focal ratio (or f-ratio) notated as N {\displaystyle N} .
text: Focal ratio is also known as the f/ratio, and is described by the f/number.
text: In astronomy, the f-number is commonly referred to as the focal ratio (or f-ratio) notated as N {\displaystyle N} .
text: In astronomy, the f-number is commonly referred to as the focal ratio (or f-ratio) notated as N {\displaystyle N} .