Encyclopedia - Telescope: Encyclopedia - Telescope
A telescope (from the Greek tele = 'far' and skopein = 'to look or see'; teleskopos = 'far-seeing') is an optical tool which gathers and ...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - Research Telescopes
Most large research telescopes can operate as either a Cassegrain telescope (longer focal length, and a narrower field with higher magnif...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - Research Telescopes
Most large research telescopes can operate as either a cassegrain telescope (longer focal length, and a narrower field with higher magnif...   » Read the article

Encyclopedia - Lowell Observatory Near-earth-object Search: Encyclopedia Ii - Lowell Observatory Near-earth-object Search - Telescope
LONEOS uses a 0.6-meter f/1.8 Schmidt telescope, which was aquired from Ohio Weslayan University in 1990, and a 16 megapixel CCD detector...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - History
The first telescopes may have been Assyrian crystal lenses. Article Though the Visby lenses tentatively suggest that the technology was k...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - History
The first telescopes may have been Assyrian crystal lenses. Article The Visby lenses tentatively suggest that the technology was known to...   » Read the article

Encyclopedia - Amateur Telescope Making: Encyclopedia - Amateur Telescope Making
There is a strong tradition of amateur telescope making within the amateur astronomy community. The classic amateur telescope is the Newt...   » Read the article

Encyclopedia - Very Large Telescope: Encyclopedia - Very Large Telescope
The Very Large Telescope Project (VLT) consists of a system of four separate optical telescopes (the Antu telescope, the Kueyen telescope...   » Read the article

Encyclopedia - Altazimuth Mount: Encyclopedia - Altazimuth Mount
An Altazimuth or alt-azimuth mount is a simple mount used for moving a telescope or camera along two perpendicular axes of motion. The ve...   » Read the article

Encyclopedia - Cassegrain Reflector: Encyclopedia - Cassegrain Reflector
First developed in 1672 by Laurent Cassegrain, a Cassegrain Telescope this type of reflector is a combination of a prime concave and a se...   » Read the article

Encyclopedia - Merlin: Encyclopedia - Merlin
The Multi-Element Radio Linked Interferometer Network (MERLIN) is an array of radio telescopes spread across Britain. The array is run fr...   » Read the article

Encyclopedia - Observatory: Encyclopedia - Observatory
An observatory is a location used for observing terrestrial and/or celestial events. Astronomy, astrology, climatology, geology, meteorol...   » Read the article

Encyclopedia - Amateur Astronomy: Encyclopedia - Amateur Astronomy
Amateur astronomy, often called back yard astronomy, is a hobby whose participants enjoy observing celestial objects. It is usually assoc...   » Read the article

Encyclopedia - Arecibo Observatory: Encyclopedia - Arecibo Observatory
The Arecibo Observatory is located in Arecibo, Puerto Rico on the north coast of the island. It is operated by Cornell University under c...   » Read the article

Encyclopedia - Angular Resolution: Encyclopedia - Angular Resolution
Angular resolution describes the resolving power of a telescope. Angular resolution - Definition of terms. Resolving power is the abili...   » Read the article

Encyclopedia - History Of Telescopes: Encyclopedia Ii - History Of Telescopes - Achromatic Telescope
The historical sequence of events now brings us to the discovery of the achromatic telescope. The first person who succeeded in making ac...   » Read the article

Encyclopedia - History Of Telescopes: Encyclopedia Ii - History Of Telescopes - Refracting Telescopes
There is an archeological finding of lenses is from Gotlandia in Sweden. These so-called Visby lenses can be dated to the second half of ...   » Read the article

Encyclopedia - History Of Telescopes: Encyclopedia Ii - History Of Telescopes - Reflecting Telescopes
Until Newton's discovery of the different refrangibility of light of different colours, it was generally supposed that object-glasses of ...   » Read the article

Encyclopedia - Optical Telescope: Encyclopedia Ii - Optical Telescope - Research Telescopes
Nearly all large research-grade astronomical telescopes are reflectors. Some reasons are: In a lens the entire volume of material has to...   » Read the article

Encyclopedia - Optical Telescope: Encyclopedia Ii - Optical Telescope - How It Works
For detailed information on specific designs of reflecting and refracting telescopes, see the main articles on Reflecting telescopes and ...   » Read the article

Encyclopedia - Reflecting Telescope: Encyclopedia Ii - Reflecting Telescope - Reflecting Telescope Designs
Reflecting telescope - Newtonian focus. The Newtonian usually has a paraboloid primary mirror but for small apertures, say 12cm or less...   » Read the article

Encyclopedia - Reflecting Telescope: Encyclopedia Ii - Reflecting Telescope - Reflecting Telescope Designs
Reflecting telescope - Schmidt camera. The Schmidt camera, invented by Bernhard Schmidt, is not technically a telescope since the light...   » Read the article

Encyclopedia - Robotic Telescope: Encyclopedia Ii - Robotic Telescope - Design
Robotic telescopes are complex systems that typically incorporate a number of subsystems. These subsystems include devices that provide t...   » Read the article

Encyclopedia - Optical Telescope: Encyclopedia Ii - Optical Telescope - Angular Resolution
Ignoring blurring of the image by turbulence in the atmosphere (atmospheric seeing) and optical imperfections of the telescope, the angul...   » Read the article

Encyclopedia - Refracting Telescope: Encyclopedia Ii - Refracting Telescope - Notable Refracting Telescopes
The 50 cm refractor at Nice Observatory. 20 inch refractor at the Observatories at Chabot Space and Science Center in Oakland, California...   » Read the article

Encyclopedia - The Telescopes: Encyclopedia Ii - The Telescopes - History
Their debut release was a split flexi disc with Loop on the Cheree label in 1988. There followed their debut single, "Kick the Wall", and...   » Read the article

Encyclopedia - Telescoping Series: Encyclopedia Ii - Telescoping Series - A Pitfall
While telescoping is a neat technique, there are pitfalls to watch out for: is not correct because regrouping of terms is invalid unle...   » Read the article

Encyclopedia - Robotic Telescope: Encyclopedia Ii - Robotic Telescope - History Of Amateur Robotic Telescopes
In 2004, most robotic telescopes are in the hands of amateur astronomers. A prerequisite for the explosion of amateur robotic telescopes ...   » Read the article

Encyclopedia - Reflecting Telescope: Encyclopedia Ii - Reflecting Telescope - Focal Planes
Reflecting telescope - Prime focus. In a prime focus design in large observatory telescopes, the observer sits inside the telescope, at...   » Read the article

Encyclopedia - Reflecting Telescope: Encyclopedia Ii - Reflecting Telescope - Focal Planes
Reflecting telescope - Prime focus. In a prime focus design, the observer sits inside the telescope, at the focal point of the reflecte...   » Read the article

Encyclopedia - Amateur Telescope Making: Encyclopedia Ii - Amateur Telescope Making - Telescope Design
The most common telescope design for the amateur telescope maker is a simple reflector on a Dobsonian Mount. The Dobsonian is very simple...   » Read the article

Encyclopedia - James Webb Space Telescope: Encyclopedia Ii - James Webb Space Telescope - Construction & Engineering
NASA's Goddard Space Flight Center in Greenbelt, Maryland is leading the management of the observatory project. The project scientist for...   » Read the article

Encyclopedia - Amateur Telescope Making: Encyclopedia Ii - Amateur Telescope Making - Telescope Construction
Amateur telescope making - Tube. Once the mirror is done, it is mounted in a mechanical tube. The idea is to maintain the optical align...   » Read the article

Encyclopedia - Reflecting Telescope: Encyclopedia Ii - Reflecting Telescope - Technical Considerations
The primary mirror is the reflector telescope's basic optical element and creates an image at the focal plane. The distance from the mirr...   » Read the article

Encyclopedia - James Webb Space Telescope: Encyclopedia Ii - James Webb Space Telescope - Construction & Engineering
Northrop Grumman Space Technology serves as the primary contractor for the development and integration of the Observatory. They are respo...   » Read the article

Encyclopedia - Overwhelmingly Large Telescope: Encyclopedia Ii - Overwhelmingly Large Telescope - Trivia
When completion occurs in 2017, (100 years after the 100 inch (Hooker Mt Wilson) telescope) there will be an 100 meters telescope. .....   » Read the article

Encyclopedia - Reflecting Telescope: Encyclopedia Ii - Reflecting Telescope - Technical Considerations
A curved primary mirror is the reflector telescope's basic optical element and creates an image at the focal plane. The distance from the...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Using The Telescope
Anyone can apply for time on the telescope; there are no restrictions on nationality or academic affiliation. Competition for time on the...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Using The Telescope
Anyone can apply for time on the telescope; there are no restrictions on nationality or academic affiliation. Competition for time on the...   » Read the article

Encyclopedia - Robotic Telescope: Encyclopedia Ii - Robotic Telescope - History Of Professional Robotic Telescopes
Robotic telescopes were first developed by astronomers after electromechanical interfaces to computers became common at observatories. Ea...   » Read the article

Encyclopedia - Telescope Mount: Encyclopedia Ii - Telescope Mount - Alt-az Mounts
Main article: Altazimuth mount The earliest types of mounts are today known as altitude-azimuth, or alt-az systems. The name refers to th...   » Read the article

Encyclopedia - Schmidt-cassegrain Telescope: Encyclopedia Ii - Schmidt-cassegrain Telescope - Variations
While there are countless variations, (both mirrors spherical, both mirrors aspherical, or one of each) they can be divided into two prin...   » Read the article

Encyclopedia - Refracting Telescope: Encyclopedia Ii - Refracting Telescope - Technical Difficulties
Refractors are criticized for their relatively high-degree of residual chromatic and spherical aberration. In very large apertures, there...   » Read the article

Encyclopedia - Refracting Telescope: Encyclopedia Ii - Refracting Telescope - Technical Difficulties
Refractors are criticized for their relatively high-degree of residual chromatic and spherical aberration. This affects shorter focal len...   » Read the article

Encyclopedia - Amateur Telescope Making: Encyclopedia Ii - Amateur Telescope Making - Mirror Making
The mirror is usually ground and polished to a shallow spherical section, and then carefully "figured" to a paraboloid using a special po...   » Read the article

Encyclopedia - Green Bank Telescope: Encyclopedia Ii - Green Bank Telescope - Description
The surface area of the GBT is 100 by 110 meters with a separate actuator (a small motor used to adjust the position) for each of the 2,0...   » Read the article

Encyclopedia - Spitzer Space Telescope: Encyclopedia Ii - Spitzer Space Telescope - Results
The first images taken by SST were designed to show off the abilities of the telescope and showed a glowing stellar nursery; a swirling, ...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Conception Design And Aims
Hubble Space Telescope - Proposals and precursors. The history of the Hubble Space Telescope can be traced back as far as 1946, when as...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Servicing Missions And New Instruments
Hubble Space Telescope - Servicing mission 1. The telescope had always been designed so that it could be regularly serviced, but after ...   » Read the article

Encyclopedia - Skygazing: Encyclopedia Ii - Skygazing - Observations With A Refracting Telescope
A refracting telescope is an instrument that is constituted of one or several lenses and that focuses the luminous rays toward one point ...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Scientific Results
Hubble Space Telescope - Important discoveries. Hubble has helped to resolve some long-standing problems in astronomy, as well as turni...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Hubble Data
Hubble Space Telescope - Transmission to Earth. Hubble data is initially stored on the spacecraft. When launched, the storage facilitie...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Outreach Activities
It has always been important for the Space Telescope to capture the public's imagination, given the considerable contribution of taxpayer...   » Read the article

Encyclopedia - Very Large Telescope: Encyclopedia Ii - Very Large Telescope - General Information
The VLT consists of a cluster of four large (8.2 meter diameter) telescopes, and an interferometer (VLTI) which is used to resolve fine f...   » Read the article

Encyclopedia - Very Large Telescope: Encyclopedia Ii - Very Large Telescope - Interferometry And The Vlti
Most interferometry will be done using 1.8 meter Auxiliary Telescopes (ATs), which will be dedicated to full-time interferometric measure...   » Read the article

Encyclopedia - South Pole Telescope: Encyclopedia Ii - South Pole Telescope - Details
The telescope is a 10 meter off-axis Gregorian telescope in an Altazimuth mount. It has been designed to allow a large field of view (abo...   » Read the article

Encyclopedia - Skygazing: Encyclopedia Ii - Skygazing - The Observation With A Reflecting Telescope
A reflecting telescope is constituted not of lenses but of mirrors. It being less costly to manufacture, one can, for the price of a refr...   » Read the article

Encyclopedia - Southern African Large Telescope: Encyclopedia Ii - Southern African Large Telescope - General Information
SALT has been built on a hilltop in a nature reserve, 370 km (230 miles) northeast of Cape Town, near the small town of Sutherland. In Ma...   » Read the article

Encyclopedia - Skygazing: Encyclopedia Ii - Skygazing - Naked Eye Skygazing
Skygazing - Diurnal observation. The extreme brightness of the Sun saturates the sky and prevents the observation of less luminous obje...   » Read the article

Encyclopedia - Microvariability And Oscillations Of Stars Telescope: Encyclopedia Ii - Microvariability And Oscillations Of Stars Telescope - Description
As its name suggests, its primary mission is to monitor variations in star light, which it does by staying on a single target for a long ...   » Read the article

Encyclopedia - Hubble Space Telescope: Encyclopedia Ii - Hubble Space Telescope - Flawed Mirror
Within weeks of the launch of the telescope, the images returned showed that there was a serious problem with the optical system. Althoug...   » Read the article

Encyclopedia - James Clerk Maxwell Telescope: Encyclopedia Ii - James Clerk Maxwell Telescope - History
In the late 1960s the Astronomy Committee of the UK's Science Research Council (SRC, for forerunner of PPARC) considered the importance o...   » Read the article

Encyclopedia - James Clerk Maxwell Telescope: Encyclopedia Ii - James Clerk Maxwell Telescope - Instrumentation
The JCMT carries two types of instruments - broadband continuum detectors and spectral-line receivers. The older continuum single pixel U...   » Read the article

Encyclopedia - Observational Astronomy: Encyclopedia Ii - Observational Astronomy - Telescopes
Galileo Galilei was the first person to known to turn a telescope to the heavens and to record what he saw. Since that time, observationa...   » Read the article

Encyclopedia - Paranal Observatory: Encyclopedia Ii - Paranal Observatory - Very Large Telescope
For more details see the main article on the Very Large Telescope. The Very Large Telescope (VLT) consists of four 8.2 m telescopes opera...   » Read the article

Encyclopedia - Observational Astronomy: Encyclopedia Ii - Observational Astronomy - Optical Telescopes
For much of the history of observational astronomy, almost all observation has been performed in the visual spectrum with optical telesco...   » Read the article

Encyclopedia - Mauna Kea Observatory: Encyclopedia Ii - Mauna Kea Observatory - Telescopes
Telescopes found at Mauna Kea Observatory are funded by government agencies of various nations. The University of Hawai'i itself directly...   » Read the article

Encyclopedia - Skygazing: Encyclopedia Ii - Skygazing - Binocular Gazing
Binoculars are very useful when you wish to observe bright, large astronomical objects. Thanks to them it is possible to see lunar crater...   » Read the article

Encyclopedia - Palomar Observatory: Encyclopedia Ii - Palomar Observatory - The Hale Telescope
This 200 inch (5.08 m) telescope is named after astronomer George Ellery Hale. It was built by a Caltech-Carnegie Institution consortium ...   » Read the article

Encyclopedia - Mount Wilson Observatory: Encyclopedia Ii - Mount Wilson Observatory - 100 Inch 2.5 M Hooker Telescope
Hale immediately set about creating a larger telescope. John D. Hooker provided crucial funding for it, along with Carnegie. The Saint Go...   » Read the article

Encyclopedia - Angular Resolution: Encyclopedia Ii - Angular Resolution - Telescope Case
Point-like sources separated by an angle smaller than the angular resolution cannot be resolved. A single optical telescope has an angula...   » Read the article

Encyclopedia - Amateur Astronomy: Encyclopedia Ii - Amateur Astronomy - Approaches To Using Amateur Telescopes
Amateur telescopes come in many shapes and sizes, both commercial and home-built. The preferences of people who use them often differ. A...   » Read the article

Encyclopedia - Mount Wilson Observatory: Encyclopedia Ii - Mount Wilson Observatory - 60 Inch 1.5 M Hale Telescope
George Ellery Hale received the 60 inch (1.5 m) blank mirror, cast by Saint Gobain in France, in 1896 as a gift from his father, William ...   » Read the article

Encyclopedia - National Solar Observatory: Encyclopedia Ii - National Solar Observatory - Telescopes Operated By The Observatory
National Solar Observatory - Sacramento Peak. The Dunn Solar Telescope The Evans Solar Facility Hilltop Dome Facility National S...   » Read the article

Encyclopedia - European Southern Observatory: Encyclopedia Ii - European Southern Observatory - Instruments At Paranal
The Very Large Telescope (VLT) is the main instrument, composed of four near-identical 8.2 m telescopes. In addition the four main telesc...   » Read the article

Encyclopedia - Magnification: Encyclopedia Ii - Magnification - Magnification As A Number Optical Magnification
Optical Magnification is the ratio between the apparent size of an object (or its size in an image) and its true size, and thus it is a d...   » Read the article

Encyclopedia - European Southern Observatory: Encyclopedia Ii - European Southern Observatory - Instruments At La Silla
Of the eighteen telescopes at La Silla Observatory, three are operated by ESO for use by the ESO astronomical community: European Southe...   » Read the article

Encyclopedia - Observational Astronomy: Encyclopedia Ii - Observational Astronomy - Observation Tools
The key instrument of nearly all modern observational astronomy is the telescope. This serves the dual purposes of gathering more light s...   » Read the article

Encyclopedia - Observational Astronomy: Encyclopedia Ii - Observational Astronomy - Unaided Eye
Prior to the discovery of the telescope, early observational astronomy relied upon the unaided eye and various instruments for measuring ...   » Read the article

Encyclopedia - Observational Astronomy: Encyclopedia Ii - Observational Astronomy - Observing
A variety of data can be observed for each star. The position coordinates locate the star on the sky using the techniques of spherical as...   » Read the article

Encyclopedia - Jodrell Bank: Encyclopedia Ii - Jodrell Bank - General Information
The first radio telescope was built in 1947, but the famous "Mark I" telescope, at the time the largest steerable dish radio telescope in...   » Read the article

Encyclopedia - Merlin: Encyclopedia Ii - Merlin - The E-merlin Upgrade
MERLIN currently uses microwave links to send astronomical data back from the remote stations. These links have a limited bandwidth so mu...   » Read the article

Encyclopedia - Observational Astronomy: Encyclopedia Ii - Observational Astronomy - Other Instruments
In addition to examination of the universe in the optical spectrum, astronomers have increasingly been able to acquire information in oth...   » Read the article

Encyclopedia - European Southern Observatory: Encyclopedia Ii - European Southern Observatory - Facilities
Most of its observation facilities are located in Chile (hence the name "Southern"), and the headquarters are located in Garching near Mu...   » Read the article

Encyclopedia - Optician: Encyclopedia Ii - Optician - Scientific Equipment Opticians
An optician is also an individual who makes and adjusts other optical aids, including telescope optics and microscope lenses. Optician -...   » Read the article

Encyclopedia - Infrared Astronomy: Encyclopedia Ii - Infrared Astronomy - Modern Infrared Astronomy
Near infrared radiation (infrared radiation with wavelengths close to that of visible light) behaves in a very similar way to visible lig...   » Read the article

Encyclopedia - Infrared Astronomy: Encyclopedia Ii - Infrared Astronomy - Astronomers' Infrared Spectrum
Infrared space telescopes such as Spitzer, IRAS, ISO and the forthcoming Herschel Space Observatory can observe across the almost all of ...   » Read the article

Encyclopedia - Amateur Astronomy: Encyclopedia Ii - Amateur Astronomy - Amateur Astronomy And Scientific Research
Unlike professional astronomy, scientific research is not always the main goal for many amateur astronomers. Work of scientific merit is ...   » Read the article

Encyclopedia - Amateur Astronomy: Encyclopedia Ii - Amateur Astronomy - Societies For Amateur Astronomy
There are a large number of amateur astronomical societies around the world that serve as a meeting point for those interested in amateur...   » Read the article

Encyclopedia - Amateur Astronomy: Encyclopedia Ii - Amateur Astronomy - Additional Tools And Activities
In addition to optical equipment, amateur astronomers use a variety of other tools such as celestial maps, and specialised computer softw...   » Read the article

Encyclopedia - Amateur Astronomy: Encyclopedia Ii - Amateur Astronomy - Beginning In Amateur Astronomy
There are a many ways for people to become involved in amateur astronomy and study the night sky. One option is to join a local astronomi...   » Read the article

Encyclopedia - Palomar Observatory: Encyclopedia Ii - Palomar Observatory - Palomar Observatory Sky Survey
The Palomar Observatory Sky Survey (POSS), sponsored by the National Geographic institute, was completed in 1958 (The first plates were s...   » Read the article

Dictionary - Dream Interpretation Telescope: Dream Interpretation Dictionary - Telescope
  Telescope To dream of a telescope, portends unfavorable seasons for love and domestic affairs, and business will be changeabl...   » Read the article

Dictionary - Telescope Dream Symbol: Dreams Interpretation Dictionary - Telescope
Telescope Dream Symbols: The ability to see things that are far off. It could be a hint that you need to bring an aspect of your life ...   » Read the article

Dictionary - Telescope Dreams Symbol: Christian Dream Interpretation Dictionary - Telescope
Telescope: Seeing into the future; making a small problem bigger. (Rev. 4:1)   (Source: Tehillah Ministries)   Related pages...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - Telescope Mountings
A simple telescope mount is an altitude-azimuth or altazimuth mount. It is similar to that of a surveying transit. A fork rotates in azim...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - Telescope Mountings
A simple telescope mount is an altitude-azimuth or altazimuth mount. It is similar to that of a surveying transit. A fork rotates in azim...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - Types
Telescopes are broadly classified into two main types. Optical telescopes Radio telescopes Optical telescopes are also divided into two...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - Types
The telescopes are broadly classified into two main categories. Optical telescopes Radio telescopes The optical telescopes are again di...   » Read the article

Encyclopedia - Telescope: Encyclopedia Ii - Telescope - Imperfect Images
No telescope can form a perfect image. Even if a reflecting telescope could have a perfect mirror, or a refracting telescope could have a...   » Read the article