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The 41 pages that link to Telescope, each with the reason it gives.

• Focal lengthRelated: Its objective focal length helps determine image scale and, with the eyepiece, magnification.

• AstrophotographyNarrower topic: Telescopes provide the image scale and light-gathering power used in many setups.

• OpticsBroader topic: Telescopes use optical design to resolve faint or distant sources.

• AstronomyBroader topic: Telescopes collect the faint signals on which much astronomical evidence depends.

• Charles MessierRelated: Messier relied on telescopic observations to locate and describe faint objects.

• MicroscopyCompared with: Telescopes resolve distant objects; microscopes resolve nearby objects too small to see clearly.

• Equatorial coordinate systemRelated: Equatorial coordinates can direct a telescope toward a target on the sky.

• Geometrical opticsRelated: Its objective and eyepiece are analyzed as a sequence of ray-forming elements.

• TheodoliteRelated: The theodolite’s telescope aims at a target whose direction is measured.

• MagnificationBroader topic: Its angular magnification compares apparent viewing angles with and without the instrument.

• Rayleigh criterionRelated: A telescope’s aperture predicts the smallest stellar separation resolved by the criterion.

• Optical resolutionNarrower topic: Its aperture and atmospheric conditions govern the finest angular details visible.

• Observational astronomyNarrower topic: Telescopes gather faint signals that observational astronomy measures.

• Scientific instrumentBroader topic: Telescopes make faint and remote astronomical phenomena measurable.

• History of astronomyRelated: Telescopic observation opened celestial details inaccessible to unaided vision.

• Tychonic systemNarrower topic: Telescopic observations changed the evidence available in the dispute over cosmic models.

• Astronomical instrumentBroader topic: Telescopes gather faint light or other radiation, extending observation beyond the unaided eye.

• Field of viewNarrower topic: Its eyepiece and objective define how much sky is visible at once.

• LensRelated: Its objective lens gathers light and forms an image for observation.

• BinocularsNarrower topic: Binoculars adapt the telescope's magnifying optics into paired channels.

• Astronomical observationBroader topic: Telescopes gather faint celestial signals and distinguish nearby sources.

• Convex lensRelated: Refracting telescopes use a convex objective to form an image of a distant object.

• EyepieceRelated: A telescope eyepiece sets the magnification and apparent field used for visual observing.

• Hans LippersheyNarrower topic: The device Lippershey sought to patent belongs to the telescope’s early history.

• Percival LowellNarrower topic: Telescope aperture, atmospheric seeing, and magnification constrained what Lowell could resolve on Mars.

• Star chartRelated: A chart can guide a telescope toward targets too faint to see unaided.

• Magnifying glassCompared with: A telescope is designed for distant targets, while a magnifying glass is used at close range.

• History of opticsBroader topic: Telescopic observations transformed astronomy and put optical theory to public test.

• Subaru TelescopeNarrower topic: Subaru is a ground-based optical-infrared telescope.

• AlidadeRelated: Telescopic alidades replace open sights when precise targeting is needed.

• AstronomerRelated: Telescopes gather faint signals that astronomers use to measure the universe.

• Astronomical instrumentationNarrower topic: Telescopes gather incoming light and direct it into instruments for analysis.

• Focus (optics)Related: Its objective optics bring distant-source light to a focal plane.

• History of glassRelated: Improved glass lenses changed astronomy by making faint and distant objects visible.

• Square degreeNarrower topic: A telescope’s optics and detector determine the angular area imaged at once.

• Thin lensRelated: The thin-lens model explains focusing by its objective and eyepiece.

• Astronomy (magazine)Related: Equipment articles help readers choose and use telescopes for observing.

• AutocollimatorRelated: Telescope optics supplied techniques and components later used in autocollimators.

• Discovery and exploration of the Solar SystemBroader topic: Telescopes exposed moons, planetary details, and faint bodies unavailable to the naked eye.

• Jane LuuNarrower topic: Luu and Jewitt used telescopes to search for faint bodies beyond Neptune.

• MicroscopiumCompared with: Telescopium, the neighboring instrument-named constellation, honors a different optical device.