Slide 1
... which shows the focal spot of the XRT mirrors. The position of this source can be determined by the XRT to within about 1 pixel (2.4 arcseconds). ...
... which shows the focal spot of the XRT mirrors. The position of this source can be determined by the XRT to within about 1 pixel (2.4 arcseconds). ...
The Large Binocular Telescope`s ARGOS ground
... use of Pockels cell switching in the WFS to implement the range gate. In addition, each laser box includes a safety shutter which, when closed, sends the beams to a power meter. Motorized periscopes allow the pointing of each of the three beams to be adjusted independently. Diverger lenses expand th ...
... use of Pockels cell switching in the WFS to implement the range gate. In addition, each laser box includes a safety shutter which, when closed, sends the beams to a power meter. Motorized periscopes allow the pointing of each of the three beams to be adjusted independently. Diverger lenses expand th ...
Larger, high-res file, best for printing
... It struck me, as I took in these behind-the-scenes visits, that I was seeing the US space program past, present, and future. The shuttle fleet, to be retired in a couple of years, represented the accomplishments of the past. The space station, which will soon be complete — with the six-person crew t ...
... It struck me, as I took in these behind-the-scenes visits, that I was seeing the US space program past, present, and future. The shuttle fleet, to be retired in a couple of years, represented the accomplishments of the past. The space station, which will soon be complete — with the six-person crew t ...
Alignment of the 1.6 meter off-axis New Solar Telescope at Big Bear
... be accomplished without large-aperture solar telescopes. It has been generally accepted that the magnetoconvection rooted on the photosphere plays a critical role in solar activity and variability. To verify and guide modeling of magneto-convection and flux emergence, transport and annihilation, mete ...
... be accomplished without large-aperture solar telescopes. It has been generally accepted that the magnetoconvection rooted on the photosphere plays a critical role in solar activity and variability. To verify and guide modeling of magneto-convection and flux emergence, transport and annihilation, mete ...
Precision engineering for astronomy
... second-largest until the construction of the Keck 1 in 1993. The Hale telescope is a perfect example of astronomy and technology. The design of telescopes at that time was what one might call ‘battleship technology’. Analysis techniques were limited and computer control of mirror supports did not ex ...
... second-largest until the construction of the Keck 1 in 1993. The Hale telescope is a perfect example of astronomy and technology. The design of telescopes at that time was what one might call ‘battleship technology’. Analysis techniques were limited and computer control of mirror supports did not ex ...
Current Status of the Hobby-Eberly Telescope Wide Field
... Requisite motions are achieved (under closed loop control using the metrology equipment described in Section 3.2) with the tracker’s X-Y stage, hexapod and rho stage (Figure 3). The X-Y stage translates the PFIP in a plane perpendicular to the primary mirror’s optical axis, while the hexapod transla ...
... Requisite motions are achieved (under closed loop control using the metrology equipment described in Section 3.2) with the tracker’s X-Y stage, hexapod and rho stage (Figure 3). The X-Y stage translates the PFIP in a plane perpendicular to the primary mirror’s optical axis, while the hexapod transla ...
PPT - Lick Observatory
... • Sign up in person with Cathy Clausen in the Astronomy department office (ISB 211) and pay her $5 to reserve your spot for the trip (no refunds if you don't show up). • We will arrange transportation in UCSC vans. We will leave campus at 1:30PM and you should be back in ...
... • Sign up in person with Cathy Clausen in the Astronomy department office (ISB 211) and pay her $5 to reserve your spot for the trip (no refunds if you don't show up). • We will arrange transportation in UCSC vans. We will leave campus at 1:30PM and you should be back in ...
September - Rose City Astronomers
... of Japan’s leading makers of fine telescopes, the #339 was distributed worldwide. Many thousands of units were sold over a twenty-year time period. The 600 power telescope, due to its popularity, was remarketed by a number of different companies with their own model numbers. Meade ran continual ads ...
... of Japan’s leading makers of fine telescopes, the #339 was distributed worldwide. Many thousands of units were sold over a twenty-year time period. The 600 power telescope, due to its popularity, was remarketed by a number of different companies with their own model numbers. Meade ran continual ads ...
JRASC, June 2014 Issue (PDF, low resolution)
... The observational program used the National Science Foundation’s Green Bank Telescope, the Arecibo radio telescope in Puerto Rico, and the Westerbork Synthesis Radio Telescope in the Netherlands. They also studied the system using data from the Sloan Digital Sky Survey, the GALEX satellite, the WIYN ...
... The observational program used the National Science Foundation’s Green Bank Telescope, the Arecibo radio telescope in Puerto Rico, and the Westerbork Synthesis Radio Telescope in the Netherlands. They also studied the system using data from the Sloan Digital Sky Survey, the GALEX satellite, the WIYN ...
A Starscape in Red and Blue - Royal Astronomical Society of Canada
... The observational program used the National Science Foundation’s Green Bank Telescope, the Arecibo radio telescope in Puerto Rico, and the Westerbork Synthesis Radio Telescope in the Netherlands. They also studied the system using data from the Sloan Digital Sky Survey, the GALEX satellite, the WIYN ...
... The observational program used the National Science Foundation’s Green Bank Telescope, the Arecibo radio telescope in Puerto Rico, and the Westerbork Synthesis Radio Telescope in the Netherlands. They also studied the system using data from the Sloan Digital Sky Survey, the GALEX satellite, the WIYN ...
this owner`s manual for Apertura dobs
... dramatically increase your personal knowledge of the night sky! You don’t need to memorize every single object in the night sky, but it can be very rewarding just knowing a handful of the most prominent sights such as the Orion constellation, the Big Dipper, the North Star, etc. A star chart will he ...
... dramatically increase your personal knowledge of the night sky! You don’t need to memorize every single object in the night sky, but it can be very rewarding just knowing a handful of the most prominent sights such as the Orion constellation, the Big Dipper, the North Star, etc. A star chart will he ...
Linear optical model for a large ground based telescope
... The stability and control of 30 m class astronomical telescopes, like the Giant Segmented Mirror Telescope (GSMT) [1] require active control of the telescope mirrors. Wind, thermal and gravitational forces introduce large amplitude, low spatial-frequency distortions into the structure and hence the ...
... The stability and control of 30 m class astronomical telescopes, like the Giant Segmented Mirror Telescope (GSMT) [1] require active control of the telescope mirrors. Wind, thermal and gravitational forces introduce large amplitude, low spatial-frequency distortions into the structure and hence the ...
The WSO, a world-class observatory for the ultraviolet
... There are several driving principles behind the design of the WSO mission. The plan is to operate a 1-2 meter class telescope in Earth orbit with a spectroscopic and imaging capability specific to the UV wavelength range. The telescope should have a high throughput and the mission optimized for oper ...
... There are several driving principles behind the design of the WSO mission. The plan is to operate a 1-2 meter class telescope in Earth orbit with a spectroscopic and imaging capability specific to the UV wavelength range. The telescope should have a high throughput and the mission optimized for oper ...
*************DST
... (Lyot type filter with rotating crystal elements using quarter waveplates and linear polarizers to tune.) It can be tuned to look at any particular visible color in the Sun's spectrum. A picture can then be taken of that region of the sun. This allows scientists to observe different altitudes and te ...
... (Lyot type filter with rotating crystal elements using quarter waveplates and linear polarizers to tune.) It can be tuned to look at any particular visible color in the Sun's spectrum. A picture can then be taken of that region of the sun. This allows scientists to observe different altitudes and te ...
He went on to become one of the outstanding astronomers in history.
... and worked as a lawyer for one year. ...
... and worked as a lawyer for one year. ...
Meade 60AZ
... object will begin to move slowly through the telescopic field of view. This movement is caused by the rotation of the Earth and makes an object appear to be moving in the telescope’s field of view. To keep astronomical objects centered in the field, simply move the telescope on one or both of its ax ...
... object will begin to move slowly through the telescopic field of view. This movement is caused by the rotation of the Earth and makes an object appear to be moving in the telescope’s field of view. To keep astronomical objects centered in the field, simply move the telescope on one or both of its ax ...
Astrometric Measurements of the Visual Double Star Epsilon Lyrae
... very difficult using this method. Estrada and Genet both suggested that the telescope be initially positioned in such a way that one star would drift through the zero end of the scale. This allowed a single reading to be made of the scale crossing of the second star, while simultaneously only needin ...
... very difficult using this method. Estrada and Genet both suggested that the telescope be initially positioned in such a way that one star would drift through the zero end of the scale. This allowed a single reading to be made of the scale crossing of the second star, while simultaneously only needin ...
HST Key Project to Measure the Hubble Constant from
... in size (get brighter as they grow larger, dim as they shrink) Can’t achieve balance of power welling up from core and power radiating from surface ...
... in size (get brighter as they grow larger, dim as they shrink) Can’t achieve balance of power welling up from core and power radiating from surface ...
Schmidt-Cassegrain Optical Tube Assembly
... Determining Field of View Determining the field of view is important if you want to get an idea of the angular size of the object you are observing. To calculate the actual field of view, divide the apparent field of the eyepiece (supplied by the eyepiece manufacturer) by the magnification. In equat ...
... Determining Field of View Determining the field of view is important if you want to get an idea of the angular size of the object you are observing. To calculate the actual field of view, divide the apparent field of the eyepiece (supplied by the eyepiece manufacturer) by the magnification. In equat ...
Guide to Polar Alignment of a Meade LX200GPS Telescope
... absolutely perfect. The parts are machined in micrometer precision at best. We require tracking precision in arc seconds for astrophotography purposes. To achieve that, the teeth on the perimeter of a gear with diameter of 8cm must be machined with accuracy of hundreds of nanometers. As mount's shaf ...
... absolutely perfect. The parts are machined in micrometer precision at best. We require tracking precision in arc seconds for astrophotography purposes. To achieve that, the teeth on the perimeter of a gear with diameter of 8cm must be machined with accuracy of hundreds of nanometers. As mount's shaf ...
Glass Mirrors by cold slumping to cover 100 m2 of the MAGIC II
... Ground based Gamma Astronomy with ACTs is concerned with gamma photons that typically interact within the first radiation length of the atmosphere with atoms and generate electromagnetic showers. The showers extend over many kilometers in length and few tens to hundreds of meters in width and have ...
... Ground based Gamma Astronomy with ACTs is concerned with gamma photons that typically interact within the first radiation length of the atmosphere with atoms and generate electromagnetic showers. The showers extend over many kilometers in length and few tens to hundreds of meters in width and have ...
The Tools of Astronomy
... Astronomical telescopes are often used to make images of their field of view (simply, the portion of the sky that the telescope “sees”). Figure 5.3 illustrates how that is accomplished, in this case by the mirror in a reflecting telescope. Light from a distant object (here, a comet) reaches us as pa ...
... Astronomical telescopes are often used to make images of their field of view (simply, the portion of the sky that the telescope “sees”). Figure 5.3 illustrates how that is accomplished, in this case by the mirror in a reflecting telescope. Light from a distant object (here, a comet) reaches us as pa ...
TWINKLE – A Low Earth Orbit Visible and Infrared Exoplanet
... Twinkle is a space mission designed for visible and near-IR spectroscopic observations of extrasolar planets. Twinkle’s highly stable instrument will allow the photometric and spectroscopic observation of a wide range of planetary classes around different types of stars, with a focus on bright sourc ...
... Twinkle is a space mission designed for visible and near-IR spectroscopic observations of extrasolar planets. Twinkle’s highly stable instrument will allow the photometric and spectroscopic observation of a wide range of planetary classes around different types of stars, with a focus on bright sourc ...
Hubble Space Telescope
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990, and remains in operation. With a 2.4-meter (7.9 ft) mirror, Hubble's four main instruments observe in the near ultraviolet, visible, and near infrared spectra. The telescope is named after the astronomer Edwin Hubble.Hubble's orbit outside the distortion of Earth's atmosphere allows it to take extremely high-resolution images with negligible background light. Hubble has recorded some of the most detailed visible-light images ever, allowing a deep view into space and time. Many Hubble observations have led to breakthroughs in astrophysics, such as accurately determining the rate of expansion of the universe.Although not the first space telescope, Hubble is one of the largest and most versatile, and is well known as both a vital research tool and a public relations boon for astronomy. The HST was built by the United States space agency NASA, with contributions from the European Space Agency, and is operated by the Space Telescope Science Institute. The HST is one of NASA's Great Observatories, along with the Compton Gamma Ray Observatory, the Chandra X-ray Observatory, and the Spitzer Space Telescope.Space telescopes were proposed as early as 1923. Hubble was funded in the 1970s, with a proposed launch in 1983, but the project was beset by technical delays, budget problems, and the Challenger disaster. When finally launched in 1990, Hubble's main mirror was found to have been ground incorrectly, compromising the telescope's capabilities. The optics were corrected to their intended quality by a servicing mission in 1993.Hubble is the only telescope designed to be serviced in space by astronauts. After launch by Space Shuttle Discovery in 1990, four subsequent Space Shuttle missions repaired, upgraded, and replaced systems on the telescope. A fifth mission was canceled on safety grounds following the Columbia disaster. However, after spirited public discussion, NASA administrator Mike Griffin approved one final servicing mission, completed in 2009. The telescope is still operating as of 2015, and may last until 2030–2040. Its scientific successor, the James Webb Space Telescope (JWST), is scheduled for launch in 2018.