A reflecting telescope (also called a reflector) is a telescope that uses a single or a combination of curved mirrors that reflect light and form an image...

Telescopes with aperture diameter >8 metres This list of the largest optical reflecting telescopes with objective diameters of 3.0 metres (120 in) or greater...

Spitzer Space Telescope, observing from about 3 μm (0.003 mm) to 180 μm (0.18 mm) uses a mirror (reflecting optics). Also using reflecting optics, the Hubble...

The Newtonian telescope, also called the Newtonian reflector or just a Newtonian, is a type of reflecting telescope invented by the English scientist...

and began producing telescopes using it in commercial quantities, starting in 1758. Important developments in reflecting telescopes were John Hadley's...

Ritchey-Chrétien telescopes. List of largest optical reflecting telescopes List of telescope types Lurie–Houghton telescope Maksutov telescope Reflecting telescope Schmidt–Cassegrain...

research purposes, the refracting telescope has been superseded by the reflecting telescope, which allows larger apertures. A refractor's magnification is calculated...

first reflecting telescope built by Sir Isaac Newton in 1668 is a landmark in the history of telescopes, being the first known successful reflecting telescope...

types of optical telescope: Refracting telescopes, which use lenses and less commonly also prisms (dioptrics) Reflecting telescopes, which use mirrors...

The Gregorian telescope is a type of reflecting telescope designed by Scottish mathematician and astronomer James Gregory in the 17th century, and first...

a reflecting telescope with a 39.3-metre-diameter (130-foot) segmented primary mirror and a 4.2 m (14 ft) diameter secondary mirror. The telescope will...

Spaceflight portal Lists of telescopes List of largest infrared telescopes List of largest optical reflecting telescopes Misc History of the telescope...

William Herschel's 40-foot telescope, also known as the Great Forty-Foot telescope, was a reflecting telescope constructed between 1785 and 1789 at Observatory...

concave bronze mirror, attempting to make a reflecting telescope. 1630 — Christoph Scheiner constructs a telescope to Kepler's design. 1650 — Christiaan Huygens...

Extremely Large Telescope Giant Magellan Telescope List of optical telescopes List of largest optical reflecting telescopes Thirty Meter Telescope Gilmozzi,...

shape. This parabolic reflector can serve as the primary mirror of a reflecting telescope. The rotating liquid assumes the same surface shape regardless of...

commissioning until the Large Binocular Telescope opened in 2005. The Subaru Telescope is a Ritchey-Chretien reflecting telescope. Instruments can be mounted at...

optical reflecting telescope with parabolic mirrors 1667 – Paris Observatory 1668 – Isaac Newton constructs the first "practical" reflecting telescope, the...

optical reflecting telescopes in the world. They are currently the third and fourth largest. With a concept first proposed in 1977, telescope designers...

The Hale Telescope is a 200-inch (5.1 m), f/3.3 reflecting telescope at the Palomar Observatory in San Diego County, California, US, named after astronomer...

mirror instead of a lens as a telescope objective, which may be the earliest known description of a reflecting telescope. In his book he also demonstrated...

Mersenne's 1636 writings describing telescope designs. James Gregory's 1662 attempts to create a reflecting telescope included a Cassegrain configuration...

the only known good reflecting surface for mirrors in reflecting telescopes. In contrast to household mirrors, where the reflecting metal layer is coated...

space-based reflecting telescope with a mirror 3 m (9.8 ft) in diameter, known provisionally as the Large Orbiting Telescope or Large Space Telescope (LST)...

mirror from 20 metres up to 100 metres across, when discussing reflecting telescopes of optical wavelengths including ultraviolet (UV), visible, and...

segment is connected to the structure of the telescope through four actuators, allowing for an active reflecting primary surface. In addition, each segment...

spelling. He described an early practical design for the reflecting telescope – the Gregorian telescope – and made advances in trigonometry, discovering infinite...

The William Herschel Telescope (WHT) is a 4.20-metre (165 in) optical/near-infrared reflecting telescope located at the Roque de los Muchachos Observatory...

diffracting around the support vanes of the secondary mirror in reflecting telescopes, or edges of non-circular camera apertures, and around eyelashes...

instrument. A two-foot aperture reflecting telescope was manufactured at the observatory itself. The clear aperture of the telescope was actually 23.5 inches...