Assertion: telescope's mirror | /r/HasProperty | 8.4 meters
Facets:
value: in diameter
type: OTHER
Source sentences:
text: The Rubin Observatory primary mirror (M1) is 8.4 meters (28 ft) in diameter, the secondary mirror (M2) is 3.4 meters (11.2 ft) in diameter, and the tertiary mirror (M3), inside the ring-like primary, is 5.0 meters (16 ft) in diameter.
text: Giant Magellan Telescope, beginning construction in 2011 Organization: A consortium of nine universities and research centers Location: Las Campanas Observatory, near La Serena, Chile Claim: Where the Large Binocular Telescope boasts two large mirrors working in tandem, the Giant Magellan raises the ante to seven mirrors, each 8.4 meters (about 28 ft) across.