Assertion: telescope's diameter | /r/HasProperty | measured in inch
Facets:
value: (in)
type: OTHER
Source sentences:
text: For telescopes, the optical diameter (also known as aperture) is the size of a telescope's main light-collecting lens or primary mirror, measured in millimeters or inches.
text: The diameter of the objective mirror is measured in either inch (in) or millimeters (mm).