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[[Category:Optical telescope components]] ...

...'occulting disk''' is a small disk placed centrally in the eyepiece of a [[telescope]] or at its focal point, to block the view of a bright object so that faint ...be seen. [[Starshade]] is one designed to fly in formation with a [[space telescope]] to image [[exoplanet]]s. ...

{{Short description|First use of a telescope}} |Description = First light image from the [[Kepler space telescope]]<ref name=kepler>{{cite web|last=Atkinson|first=Nancy|title=Kepler's "Firs ...

{{Short description|Telescope in the Roque de los Muchachos Observatory, Canary Islands}} {{Infobox telescope ...

...jpg|thumb|right|The un-coated backup primary mirror for the [[Hubble Space Telescope]] showing its honeycomb structure.<ref>{{cite web |title=Mirror, Primary Backup, Hubble Space Telescope. ...

{{short description|Aberration inherent to certain optical designs or due to imperfection in the lens}} ...of a single lens. Each cone of light focuses on different planes along the optical axis.]] ...

{{Infobox telescope}} {{short description|Robotic optical telescope searching for extrasolar planets}} ...

{{short description|Main light-gathering source of reflecting telescope}} ...or.jpg|thumb|right|Six of the 18 primary mirrors of the [[James Webb Space Telescope]] being prepared for [[acceptance testing]].]] ...

{{Short description|Optical lens used to increase focal length}} ...ve lens]] (A) without (red) and with (green) a Barlow lens [[Lens (optics)|optical element]] (B)]] ...

...pe of optical [[glass]] used in [[lens (optics)|lenses]] and other optical components. It has relatively low [[refractive index]] (≈1.52) and low [[dispersion (o ...]] and [[lanthanum oxide]]. The crown/flint distinction is so important to optical glass technology that many glass names, notably Schott glasses, incorporate ...

...ian telescope.svg|thumb|370px|Diagram of the lightpath through a Gregorian telescope]] ...uilt until five years after [[Newton's reflector|Newton's first reflecting telescope]]. ...

...the limits of the current generation of [[telescope]]s. The [[Hubble Space Telescope]] does not suffer from this problem. ...be much worse: due to the longer [[wavelength]]s involved, the sky and the telescope themselves are a source of light.<ref>{{Cite journal |last=Hauser |first=Mi ...

...]].<ref name="GTBA" /> He is also an [[amateur astronomer]] specialized in optical measurements. The asteroid [[489603&nbsp;Kurtschreckling]] was named in his ...tion have become legendary in the German-speaking countries in the amateur telescope maker scene. Kurt Schreckling is active in various [[amateur astronomer]] f ...

|telescope1_name = Meyer Binocular Telescope ...us}}, it is the [[List of highest astronomical observatories|third-highest optical/infrared observatory]] in the world, and was the highest until the [[Indian ...

[[File:Comparison optical telescope primary mirrors.svg|thumb|280px|Size comparison of primary mirrors. ''Segme ...They are used as [[Objective (optics)|objectives]] for large [[reflecting telescope]]s. To function, all the mirror segments have to be [[Polishing (metalworki ...

{{Short description|Type of reflecting telescope}} ...elescope [[Focus (optics)|focal point]] in space regardless of where the [[telescope]] line of sight is pointed. ...

...stem locations.png|thumb|[[Apollo Command Module]] primary guidance system components]] ...system locations.png|thumb|[[Apollo Lunar Module]] primary guidance system components]] ...

...ht]], including its interactions with [[matter]] and the construction of [[optical instruments|instruments]] that use or [[Photodetector|detect]] it.<ref name * [[Aberration in optical systems]] ...

...commonly '''Ball Aerospace''', was an American manufacturer of spacecraft, components and instruments for national defense, civil space and commercial space appl Other products and services for the aerospace industry include lubricants, optical systems, [[star tracker]]s and antennas. As a wholly-owned subsidiary of th ...

{{Infobox telescope}} ...|location=Bristol|oclc=23357612}}</ref> The design was based on an earlier optical [[intensity interferometer]] built by [[Hanbury Brown]] and [[Richard Q. Tw ...