Galileo Galilei - New World Educational Center
... theory of his time that the sun and all the planets revolved around the Earth. Later at University of Padua he was exposed to a new theory, proposed by Nicolaus Copernicus, that the Earth and all the other planets revolved around the sun. Galileo’s observations with his new telescope convinced him o ...
... theory of his time that the sun and all the planets revolved around the Earth. Later at University of Padua he was exposed to a new theory, proposed by Nicolaus Copernicus, that the Earth and all the other planets revolved around the sun. Galileo’s observations with his new telescope convinced him o ...
Compact Telescope for Free Space Communications
... primary and secondary mirrors. The modified Gregorian telescope will always have perfect centration because both curved surfaces are machined at the same time on a diamond turning lathe. The folding mirror is flat so no centration is required. 3. The modified Gregorian system is inexpensive. Instead ...
... primary and secondary mirrors. The modified Gregorian telescope will always have perfect centration because both curved surfaces are machined at the same time on a diamond turning lathe. The folding mirror is flat so no centration is required. 3. The modified Gregorian system is inexpensive. Instead ...
TMT Scientific Information Brochure
... National Astronomical Observatories of the Chinese Academy of Sciences ...
... National Astronomical Observatories of the Chinese Academy of Sciences ...
Lecture6_v3 - Lick Observatory
... of 10 m, compared with 5 m for the Palomar Telescope in California. The light gathering power of Keck is larger by a factor of a) 2 ...
... of 10 m, compared with 5 m for the Palomar Telescope in California. The light gathering power of Keck is larger by a factor of a) 2 ...
Ronald`s presentation
... Lightweight honeycomb sunshield containment shell structure (outer shell and ...
... Lightweight honeycomb sunshield containment shell structure (outer shell and ...
george ellery hale - National Academy of Sciences
... ascribed the development of his creative imagination, a characteristic which aided and enriched so greatly his later scientific work. So we see the young boy transforming his bedroom and later a small hallroom into a little shop, surrounded by his tools, his scroll saw and a simple wood lathe. One C ...
... ascribed the development of his creative imagination, a characteristic which aided and enriched so greatly his later scientific work. So we see the young boy transforming his bedroom and later a small hallroom into a little shop, surrounded by his tools, his scroll saw and a simple wood lathe. One C ...
The Revolution in Telescope Aperture
... D/t of the primary mirrors to reduce the mass of the mirror, the supporting telescope and the surrounding structure. The availability of analytical models opened the way to understanding the detailed performance of these lighter mirrors and telescope structures and the active systems needed to suppo ...
... D/t of the primary mirrors to reduce the mass of the mirror, the supporting telescope and the surrounding structure. The availability of analytical models opened the way to understanding the detailed performance of these lighter mirrors and telescope structures and the active systems needed to suppo ...
Ferrari ZenithStar Anniversary Ed.
... hollow ring. The tension should be adjusted only when necessary (for example when adding heavy accessories to the focuser) by progressively tightening until you reach the desired drawtube tension. Make sure that the retaining black ring is always tight against the focuser. A stable camera tripod is ...
... hollow ring. The tension should be adjusted only when necessary (for example when adding heavy accessories to the focuser) by progressively tightening until you reach the desired drawtube tension. Make sure that the retaining black ring is always tight against the focuser. A stable camera tripod is ...
Protocol on Cooperation in Astrophysical Research in Spain
... (2) The allocation of observing time to Spain and to collaborative programmes shall, where appropriate, be apportioned in an equitable manner in the various seasons of the year and phases of the Moon. Any dispute shall be referred to the CCI which shall give a decision on the matter. (3) Responsibil ...
... (2) The allocation of observing time to Spain and to collaborative programmes shall, where appropriate, be apportioned in an equitable manner in the various seasons of the year and phases of the Moon. Any dispute shall be referred to the CCI which shall give a decision on the matter. (3) Responsibil ...
Choosing your first telescope - Caribbean Institute of Astronomy
... problem is that such high magnifications are not useful. Atmospheric turbulence ensures that magnifications beyond 400x are rarely usable in any telescope, and in fact a lot of observing is done well below 100x. Also keep in mind that higher magnifications yield smaller fields of view and require mu ...
... problem is that such high magnifications are not useful. Atmospheric turbulence ensures that magnifications beyond 400x are rarely usable in any telescope, and in fact a lot of observing is done well below 100x. Also keep in mind that higher magnifications yield smaller fields of view and require mu ...
Lecture6_v4 - UCO/Lick Observatory
... of 10 m, compared with 5 m for the Palomar Telescope in California. The light gathering power of Keck is larger by a factor of a) 2 ...
... of 10 m, compared with 5 m for the Palomar Telescope in California. The light gathering power of Keck is larger by a factor of a) 2 ...
Telescopes - Lick Observatory
... of 10 m, compared with 5 m for the Palomar Telescope in California. The light gathering power of Keck is larger by a factor of a) 2 ...
... of 10 m, compared with 5 m for the Palomar Telescope in California. The light gathering power of Keck is larger by a factor of a) 2 ...
Document
... • Focusing of X-rays requires special mirrors • Mirrors are arranged to focus X-ray photons through grazing bounces off the surface ...
... • Focusing of X-rays requires special mirrors • Mirrors are arranged to focus X-ray photons through grazing bounces off the surface ...
Overview and Status of the Giant Magellan Telescope Project
... structure of the GMT enclosure. All optics reside within the OSS. Three instrument-mounting stations are also located within the moving structure of the telescope (the OSS) below the primary mirror. An additional gravity invariant station is available on the azimuth structure for instruments that re ...
... structure of the GMT enclosure. All optics reside within the OSS. Three instrument-mounting stations are also located within the moving structure of the telescope (the OSS) below the primary mirror. An additional gravity invariant station is available on the azimuth structure for instruments that re ...
Reflecting vs Refracting
... The Swedish Vacuum Telescope (SVT)4 and the Large Earth-based Solar Telescope (LEST)5,33 both conducted extensive studies of thermal loading and stress in large fused silica windows, and found both could be reasonably controlled. 1.2) Reflecting Telescope: The choice of f/number for the reflecting d ...
... The Swedish Vacuum Telescope (SVT)4 and the Large Earth-based Solar Telescope (LEST)5,33 both conducted extensive studies of thermal loading and stress in large fused silica windows, and found both could be reasonably controlled. 1.2) Reflecting Telescope: The choice of f/number for the reflecting d ...
Hubble Telescope - NTUA Personal home pages
... Many Hubble images have a curious stair-step shape. These images come from a scientific instrument called the Wide Field and Planetary Camera 2, or WFPC2 — which was removed from the telescope in mid-2009. It is WFPC2’s unique design that underlies the oddly-shaped images in Hubble’s portfolio. But ...
... Many Hubble images have a curious stair-step shape. These images come from a scientific instrument called the Wide Field and Planetary Camera 2, or WFPC2 — which was removed from the telescope in mid-2009. It is WFPC2’s unique design that underlies the oddly-shaped images in Hubble’s portfolio. But ...
IRMOS
... (MOAO). Rather than trying to provide high-order AO corrections over the entire 5 field, MOAO seeks to provide these corrections only over much smaller fields of view (a few arcseconds) along the IFU lines-of-sight. This is achieved by incorporating a sophisticated AO system into the feed for each ...
... (MOAO). Rather than trying to provide high-order AO corrections over the entire 5 field, MOAO seeks to provide these corrections only over much smaller fields of view (a few arcseconds) along the IFU lines-of-sight. This is achieved by incorporating a sophisticated AO system into the feed for each ...
Lab 5
... In all of the Keplerian telescopes you have constructed so far, the image has been inverted. This is not a problem for stargazing, but it is for many terrestrial applications. Binoculars use a Porro-Abbe prism combination to invert the image. This is why the axis of the eyepiece is displaced from th ...
... In all of the Keplerian telescopes you have constructed so far, the image has been inverted. This is not a problem for stargazing, but it is for many terrestrial applications. Binoculars use a Porro-Abbe prism combination to invert the image. This is why the axis of the eyepiece is displaced from th ...
SST-GATE: An Innovative Telescope for the Very High
... telescopes of different sizes. A few large-size telescopes (LSTs), with parabolic dishes, will cover the lowest energies; a few tens of medium-size telescopes (MSTs), of Davies-Cotton (D-C) design, are optimised for the TeV energy range; and many tens of small-size telescopes (SSTs), of D-C or S-C d ...
... telescopes of different sizes. A few large-size telescopes (LSTs), with parabolic dishes, will cover the lowest energies; a few tens of medium-size telescopes (MSTs), of Davies-Cotton (D-C) design, are optimised for the TeV energy range; and many tens of small-size telescopes (SSTs), of D-C or S-C d ...
The Hobby-Eberly Telescope completion project
... HET was an ambitious project from its inception, aspiring to build a very large telescope comparatively inexpensively by deliberately limiting some typical telescope capabilities, such as full steerability, to fund an increased primary mirror size. Perhaps not surprisingly for an innovative design o ...
... HET was an ambitious project from its inception, aspiring to build a very large telescope comparatively inexpensively by deliberately limiting some typical telescope capabilities, such as full steerability, to fund an increased primary mirror size. Perhaps not surprisingly for an innovative design o ...
PDF sample - Hawaii Military Wives
... to whom I express my grateful thanks. I consider the above three historic print/photos to be a major enrichment of the book. A change hopefully made correctly throughout the book is the spelling of the name “Abbe” without an acute accent on the “e”. This error was pointed out by a reviewer in an Iri ...
... to whom I express my grateful thanks. I consider the above three historic print/photos to be a major enrichment of the book. A change hopefully made correctly throughout the book is the spelling of the name “Abbe” without an acute accent on the “e”. This error was pointed out by a reviewer in an Iri ...
Read the article
... Line up the three return spots on the same collimator ring, and you’re done. After you use the Advanced CT Laser Collimator for the first time, HOTECH recommends (and I concur) that you check your scope’s alignment by performing a star test. The instructions cover this as well. ...
... Line up the three return spots on the same collimator ring, and you’re done. After you use the Advanced CT Laser Collimator for the first time, HOTECH recommends (and I concur) that you check your scope’s alignment by performing a star test. The instructions cover this as well. ...
PULSE@Parkes science and technology overview
... should be possible to view the 1) control room, 2) outside web-cam and 3) aztrack web-cam. 2) Record the sound of the pulsars (or whatever the pulsar is observing) and stream the sound to the Marsfield lecture theatre. 3) Allow the astronomer to talk/chat with the students in the Marsfield lecture t ...
... should be possible to view the 1) control room, 2) outside web-cam and 3) aztrack web-cam. 2) Record the sound of the pulsars (or whatever the pulsar is observing) and stream the sound to the Marsfield lecture theatre. 3) Allow the astronomer to talk/chat with the students in the Marsfield lecture t ...
Chapter 20
... In 1948, the 200-inch (5-m) “Hale” reflecting telescope opened at the Palomar Observatory, also in California, and was for many years the largest in the world. Current electronic imaging detectors, specifically chargecoupled devices (CCDs) similar to those in camcorders and digital cameras, have mad ...
... In 1948, the 200-inch (5-m) “Hale” reflecting telescope opened at the Palomar Observatory, also in California, and was for many years the largest in the world. Current electronic imaging detectors, specifically chargecoupled devices (CCDs) similar to those in camcorders and digital cameras, have mad ...
Moscow State University Sternberg Astronomical Institute
... provided. Two main Nasmyth stations are located at the central holes of the elevation axles and two additional (“student ports”) are oriented at 90 and 270 degrees with respect to the elevation axis. First main Nasmyth station N1 must provide the unvignetted field of view (FOV) 40 arcmin in diameter ...
... provided. Two main Nasmyth stations are located at the central holes of the elevation axles and two additional (“student ports”) are oriented at 90 and 270 degrees with respect to the elevation axis. First main Nasmyth station N1 must provide the unvignetted field of view (FOV) 40 arcmin in diameter ...
Arecibo Observatory
The Arecibo Observatory is a radio telescope in the municipality of Arecibo, Puerto Rico. This observatory is operated by SRI International, USRA and UMET, under cooperative agreement with the National Science Foundation (NSF). This observatory is also called the National Astronomy and Ionosphere Center, although ""NAIC"" refers to both the observatory and the staff that operates it. From its construction in the 1960s until 2011, the observatory was managed by Cornell University.The Observatory's 1,000 ft (305 m) radio telescope is the world's largest single-aperture telescope. It is used in three major areas of research: radio astronomy, atmospheric science, and radar astronomy. Scientists who want to use the Arecibo Telescope submit proposals that are evaluated by an independent scientific board.The Radio Telescope has made appearances in motion picture and television productions, gaining more recognition in 1999 when it began to collect data for the SETI@home project. It has been listed on the American National Register of Historic Places beginning in 2008. It was the featured listing in the National Park Service's weekly list of October 3, 2008. The Center was named in IEEE Milestone in 2001. It has a visitors center that is open part time.