Assertion: sextant | /r/ObjectUse | used for celestial navigation
Facets:
value: primarily
type: DEGREE
value: commonly
type: TEMPORAL
Source sentences:
text: Navigators' sextants were primarily used for celestial navigation.
text: The sextant is a tool commonly used in celestial navigation, as it allows its user to take an accurate measurement of a heavenly body relative to the horizon.
text: A sextant measures the angular distance between two visible objects and is primarily used for celestial navigation.
text: Navigators' sextants were primarily used for celestial navigation.