Celestron

Target entity: Celestron
Context triple: [Schmidt–Cassegrain telescope design, popularizedBy, Celestron]

• A. Curtis Schmidt Telescope
  The Curtis Schmidt Telescope is a wide-field Schmidt telescope known for its photographic sky surveys and operation at the Cerro Tololo Inter-American Observatory in Chile.
• B. Schmidt telescope
  A Schmidt telescope is a wide-field reflecting telescope design that uses a spherical primary mirror and a correcting lens to capture sharp images over a large area of the sky.
• C. 140 Foot Telescope
  The 140 Foot Telescope is a large single-dish radio telescope at the Green Bank Observatory in West Virginia, historically used for a wide range of radio astronomy research.
• D. du Pont Telescope
  The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
• E. Magellan Telescopes
  Magellan Telescopes are a pair of 6.5-meter optical-infrared telescopes at Las Campanas Observatory in Chile, used for cutting-edge astronomical research by an international collaboration.
• F. None of above. chosen
• G. Unsure - the case is ambiguous/there is not enough information to decide.

Target entity: Celestron
Target entity description: Celestron is a leading American manufacturer of consumer and professional telescopes and optical equipment, best known for bringing Schmidt–Cassegrain telescopes into widespread use.

• A. Curtis Schmidt Telescope
  The Curtis Schmidt Telescope is a wide-field Schmidt telescope known for its photographic sky surveys and operation at the Cerro Tololo Inter-American Observatory in Chile.
• B. Schmidt telescope
  A Schmidt telescope is a wide-field reflecting telescope design that uses a spherical primary mirror and a correcting lens to capture sharp images over a large area of the sky.
• C. 140 Foot Telescope
  The 140 Foot Telescope is a large single-dish radio telescope at the Green Bank Observatory in West Virginia, historically used for a wide range of radio astronomy research.
• D. du Pont Telescope
  The du Pont Telescope is a 2.5-meter optical telescope at Chile’s Las Campanas Observatory used for a wide range of astronomical imaging and spectroscopic research.
• E. Magellan Telescopes
  Magellan Telescopes are a pair of 6.5-meter optical-infrared telescopes at Las Campanas Observatory in Chile, used for cutting-edge astronomical research by an international collaboration.
• F. None of above. chosen