Laser guide star adaptive optics at the Keck Observatory
... First corrected images on NIRC2 with laser LGS AO facility operable by AO experts First LGS AO engineering science LGS AO observing strategy decision First shared-risk science First light engineering science paper LGS AO facility operable for science by OA and one expert First queue/non-shared scien ...
... First corrected images on NIRC2 with laser LGS AO facility operable by AO experts First LGS AO engineering science LGS AO observing strategy decision First shared-risk science First light engineering science paper LGS AO facility operable for science by OA and one expert First queue/non-shared scien ...
A Beginner`s Guide to Choosing Binoculars and Telescopes for
... So, although magnification is useful, it has no effect in helping you see detail in a telescope. The detail and brightness of an image all comes down to the amount of light collected by the objective lens or mirror. And that depends on its diameter of the objective, also called the aperture. Like a ...
... So, although magnification is useful, it has no effect in helping you see detail in a telescope. The detail and brightness of an image all comes down to the amount of light collected by the objective lens or mirror. And that depends on its diameter of the objective, also called the aperture. Like a ...
Teacher Guide Whole-no background
... through his own discoveries, but by paving the way for his fellow astronomers and future generations of scientists. Most people, especially young people, are not aware that America led the world in space exploration long before NASA and the Moon landing. For nearly five decades, from the 1890s throu ...
... through his own discoveries, but by paving the way for his fellow astronomers and future generations of scientists. Most people, especially young people, are not aware that America led the world in space exploration long before NASA and the Moon landing. For nearly five decades, from the 1890s throu ...
Section 4 of the ATM List FAQ
... more esoteric lines: tile tools, advanced testing techniques, 2-3 articles on interferometers, spherometers, a spectrohelioscope, mirror making machines, etc. Vol. II (mechanical) will likely be fairly frustrating for those lacking access to a machine shop, or at least a lathe....but a true joy for ...
... more esoteric lines: tile tools, advanced testing techniques, 2-3 articles on interferometers, spherometers, a spectrohelioscope, mirror making machines, etc. Vol. II (mechanical) will likely be fairly frustrating for those lacking access to a machine shop, or at least a lathe....but a true joy for ...
Sidereal Clock - Institute for Astronomy
... and Company of Philadelphia was placed in the new observatory along with a three-inch meridian transit telescope and a very fine Seth Thomas sidereal clock. The observatory was operated by the fledgling College of Hawai'i, later to become the University of Hawai'i. Following the successful observati ...
... and Company of Philadelphia was placed in the new observatory along with a three-inch meridian transit telescope and a very fine Seth Thomas sidereal clock. The observatory was operated by the fledgling College of Hawai'i, later to become the University of Hawai'i. Following the successful observati ...
Darragh-ODonoghue
... the first understanding of the physical nature of spectral lines, discovering many elements ...
... the first understanding of the physical nature of spectral lines, discovering many elements ...
1920s 1930s 1940s 1950s 1960s 1970s 1980s 1990s 2000s
... Stephan’s Quintet: A clash among members of a famous galaxy quintet reveals an assortment of stars across a wide color range, from young, blue stars to aging, red stars. Three of the galaxies have distorted shapes, elongated spiral arms, and long, gaseous tidal tails containing many star clusters, p ...
... Stephan’s Quintet: A clash among members of a famous galaxy quintet reveals an assortment of stars across a wide color range, from young, blue stars to aging, red stars. Three of the galaxies have distorted shapes, elongated spiral arms, and long, gaseous tidal tails containing many star clusters, p ...
Project_Description2
... astronomical telescope mirrors. It is easy to deposit, has reflectance above 90% for most of the optical-UV to the near IR (although there is a significant drop in the 700-900nm region), and it develops a native layer that enables it to survive for 2-3 years before recoating is necessary. However, i ...
... astronomical telescope mirrors. It is easy to deposit, has reflectance above 90% for most of the optical-UV to the near IR (although there is a significant drop in the 700-900nm region), and it develops a native layer that enables it to survive for 2-3 years before recoating is necessary. However, i ...
Manual - Physics
... If you have trouble focusing, rotate the focuser knob so the drawtube is in as far as it will go. Now look through the eyepiece while slowly rotating the focuser knob in the opposite direction. You should soon see the point at which focus is reached. Viewing with Eyeglasses If you wear eyeglasses, y ...
... If you have trouble focusing, rotate the focuser knob so the drawtube is in as far as it will go. Now look through the eyepiece while slowly rotating the focuser knob in the opposite direction. You should soon see the point at which focus is reached. Viewing with Eyeglasses If you wear eyeglasses, y ...
Custom Solutions Catalog
... the carrier lens so that the optic center of the ocular lens is 11mm below the top of the carrier lens. They are laterally decentered to the patient’s PD and have a standard drilling angle of inclination of 20º upward from the horizontal plane. Any position or angle, however, can be special-ordered. ...
... the carrier lens so that the optic center of the ocular lens is 11mm below the top of the carrier lens. They are laterally decentered to the patient’s PD and have a standard drilling angle of inclination of 20º upward from the horizontal plane. Any position or angle, however, can be special-ordered. ...
INSTRUCTION MANUAL Orion® SpaceProbe 130mm EQ
... Figure 5. The view through a standard finder scope and reflector telescope is upside down (rotated 180°). This is true for the SpaceProbe 130mm and its finder scope as well. ...
... Figure 5. The view through a standard finder scope and reflector telescope is upside down (rotated 180°). This is true for the SpaceProbe 130mm and its finder scope as well. ...
Economic Feasibility of a Siderostat-fed Liquid Mirror Telescope for
... field of view (arcminutes or less) to be observed at fixed zenith angles up to 45 degrees [13], but this solution is cumbersome and - since it is limited to a single angle - seemingly not practical. A design that allows pointing within a limited field of regard (˜ 6 degrees diameter) centered on the ze ...
... field of view (arcminutes or less) to be observed at fixed zenith angles up to 45 degrees [13], but this solution is cumbersome and - since it is limited to a single angle - seemingly not practical. A design that allows pointing within a limited field of regard (˜ 6 degrees diameter) centered on the ze ...
Experience with the Hubble Space Telescope: Twenty Years
... 565 km [13]. During a typical ~96 minute orbit, it will spend most of its time in pointed astronomical observations. This efficiency of ~50% or better was reached during the first 6 years of science operations as improvements were made in how HST was utilized and operated. ...
... 565 km [13]. During a typical ~96 minute orbit, it will spend most of its time in pointed astronomical observations. This efficiency of ~50% or better was reached during the first 6 years of science operations as improvements were made in how HST was utilized and operated. ...
What You need to know - Peterborough Astronomical Society
... fainter objects than a 10x50 pair. The trade-off? Bigger lenses mean more weight, and lenses larger than 50 mm are heavy which makes it harder to hold such binoculars steady for any length of time. Binoculars also allow viewing with both eyes. This is more comfortable and natural, and it helps many ...
... fainter objects than a 10x50 pair. The trade-off? Bigger lenses mean more weight, and lenses larger than 50 mm are heavy which makes it harder to hold such binoculars steady for any length of time. Binoculars also allow viewing with both eyes. This is more comfortable and natural, and it helps many ...
Bioptic telescopes - The College of Optometrists
... can offer an aid that provides a magnified distance image, thereby improving resolution and reducing associated visual disabilities. Differing from hand-held monocular or binocular telescopes, a bioptic telescope provides a spectacle-mounted hands-free method for magnification at a distance that can ...
... can offer an aid that provides a magnified distance image, thereby improving resolution and reducing associated visual disabilities. Differing from hand-held monocular or binocular telescopes, a bioptic telescope provides a spectacle-mounted hands-free method for magnification at a distance that can ...
Astronomical Observing Techniques Lecture 3: Eyes to the Skies
... Astronomical Observing Techniques 2016: Telescopes ...
... Astronomical Observing Techniques 2016: Telescopes ...
Looking Further
... saw that it was covered in craters. Before this, people had thought that the moon was smooth. Over time, telescopes became bigger and better. In 1873, the Alvan Clark company’s refracting telescope helped scientists discover the two moons that orbit Mars. The Lick Observatory in California was built ...
... saw that it was covered in craters. Before this, people had thought that the moon was smooth. Over time, telescopes became bigger and better. In 1873, the Alvan Clark company’s refracting telescope helped scientists discover the two moons that orbit Mars. The Lick Observatory in California was built ...
Vision and Voyages for Planetary Science 2013
... Planetary science is a multifaceted enterprise that collectively seeks answers to basic questions—such as how planets form, how they work, and why at least one planet is the abode of life. The fact that researchers can and do address these deceptively simple questions explains, in part, why planetar ...
... Planetary science is a multifaceted enterprise that collectively seeks answers to basic questions—such as how planets form, how they work, and why at least one planet is the abode of life. The fact that researchers can and do address these deceptively simple questions explains, in part, why planetar ...
Planet Discoverer Interferometer I: PD!, a potential precursor to
... NGST. Steward Observatory Mirror Lab has modified technology that was being developed to make adaptive optics secondaries for the MMT conversion and for the Large Binocular Telescope, and now expects to make large lightweight telescope primaries7. Other industrial groups are pursuing different but e ...
... NGST. Steward Observatory Mirror Lab has modified technology that was being developed to make adaptive optics secondaries for the MMT conversion and for the Large Binocular Telescope, and now expects to make large lightweight telescope primaries7. Other industrial groups are pursuing different but e ...
Te lescopes - Astromedia AB
... The 60mm (2.4") refractor is the most popular telescope size for beginning astronomy enthusiasts and for casual gift-giving. This size telescope is perfect for introducing newcomers to astronomy, at an affordable price. For astronomical observing, the 60mm refractor allows you to see lunar details, ...
... The 60mm (2.4") refractor is the most popular telescope size for beginning astronomy enthusiasts and for casual gift-giving. This size telescope is perfect for introducing newcomers to astronomy, at an affordable price. For astronomical observing, the 60mm refractor allows you to see lunar details, ...
Analytical expressions for field astigmatism in decentered two mirror
... with arbitrary geometries and with stop positions anywhere on the line connecting the vertices of the two mirrors. The formulae show explicitly the dependence of the field astigmatism on the fundamental design parameters and characteristics of the telescope and on the stop position. Special attentio ...
... with arbitrary geometries and with stop positions anywhere on the line connecting the vertices of the two mirrors. The formulae show explicitly the dependence of the field astigmatism on the fundamental design parameters and characteristics of the telescope and on the stop position. Special attentio ...
Downloadable Full Text
... Range (WSMR) south of Socorro, New Mexico, USA, provides a dry environment with excellent seeing conditions. The SST’s mission is to perform space surveillance and space situational awareness. That is, the telescope provides the position with respect to the stars and the brightness of satellites and ...
... Range (WSMR) south of Socorro, New Mexico, USA, provides a dry environment with excellent seeing conditions. The SST’s mission is to perform space surveillance and space situational awareness. That is, the telescope provides the position with respect to the stars and the brightness of satellites and ...
orion® starBlast™ 4.5 EQ
... II or eyepieces with your fingers; the optical surfaces have coatings on them that can be damaged. Never remove any lens assembly from its housing for any reason, or the product warranty and return policy will be void. 1. Lay the equatorial mount on its side. Attach the tripod legs one at a time to ...
... II or eyepieces with your fingers; the optical surfaces have coatings on them that can be damaged. Never remove any lens assembly from its housing for any reason, or the product warranty and return policy will be void. 1. Lay the equatorial mount on its side. Attach the tripod legs one at a time to ...
Instrumentation progress at the Giant Magellan Telescope project
... and schedule. One instrument team has completed its preliminary design and is currently beginning its final design (GCLEF, an optical 350-950 nm, high-resolution and precision radial velocity echelle spectrograph). A second instrument team is in its conceptual design phase (GMACS, an optical 350-950 ...
... and schedule. One instrument team has completed its preliminary design and is currently beginning its final design (GCLEF, an optical 350-950 nm, high-resolution and precision radial velocity echelle spectrograph). A second instrument team is in its conceptual design phase (GMACS, an optical 350-950 ...
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.