Slide 1
... Isolation of the squeezing-enhanced interferometer field from the injection of squeezing is done by Faraday isolation. An extra Faraday isolator is installed to further reject the LO light from going into the OPO. Detection of the squeezing-enhanced interferometer field is done by a high transimpeda ...
... Isolation of the squeezing-enhanced interferometer field from the injection of squeezing is done by Faraday isolation. An extra Faraday isolator is installed to further reject the LO light from going into the OPO. Detection of the squeezing-enhanced interferometer field is done by a high transimpeda ...
Meade Instruments Corporation Instruction Manual
... 1. After Autostar's cord is plugged into the HBX port and the power cord is plugged into the 12v port, a copyright message lights on the Autostar LCD display (1, Fig. 3). 2. A message warning not to look at the Sun scrolls across the display. Press the key prompted by Autostar to acknowledge that th ...
... 1. After Autostar's cord is plugged into the HBX port and the power cord is plugged into the 12v port, a copyright message lights on the Autostar LCD display (1, Fig. 3). 2. A message warning not to look at the Sun scrolls across the display. Press the key prompted by Autostar to acknowledge that th ...
Keck NGAO Relay Design - Caltech Optical Observatories
... and instruments. . FOAP 4 is thus 3 times larger than FOAP 3 , or 1024.5mm. It is located exactly one focal length away from the tweeter mirror, to provide a telecentric beam for the instruments. A switchyard mirror, at 400mm beyond OAP4, directs the beam to the science instrument(s). The incident a ...
... and instruments. . FOAP 4 is thus 3 times larger than FOAP 3 , or 1024.5mm. It is located exactly one focal length away from the tweeter mirror, to provide a telecentric beam for the instruments. A switchyard mirror, at 400mm beyond OAP4, directs the beam to the science instrument(s). The incident a ...
8. Adaptive Optics
... Adaptive Optics is absolutely essential for OWL, to concentrate the light for spectroscopy and imaging and to reach the diffraction limit on-axis or over an extended FoV. In this section we present a progressive implementation plan based on three generation of Adaptive Optics systems and, to the pos ...
... Adaptive Optics is absolutely essential for OWL, to concentrate the light for spectroscopy and imaging and to reach the diffraction limit on-axis or over an extended FoV. In this section we present a progressive implementation plan based on three generation of Adaptive Optics systems and, to the pos ...
Venus Observing Information
... the Earth, and it exhibits phases just like the Moon. Because Venus is comparatively near the Sun, it is characteristically very bright, and the high albedo produces an excessive amount of glare. The rather faint and elusive markings on the disk of Venus, normally of very low contrast, become diffic ...
... the Earth, and it exhibits phases just like the Moon. Because Venus is comparatively near the Sun, it is characteristically very bright, and the high albedo produces an excessive amount of glare. The rather faint and elusive markings on the disk of Venus, normally of very low contrast, become diffic ...
CFA - 5th Unit 2 Saturn
... Saturn is the sixth planet from our sun. This amazing planet is best known for its rings. We may think that these rings are small in numbers, but when seen through a telescope, there are hundreds of them. The rings of Saturn are made up of very tiny pieces of matter. There are so many objects floati ...
... Saturn is the sixth planet from our sun. This amazing planet is best known for its rings. We may think that these rings are small in numbers, but when seen through a telescope, there are hundreds of them. The rings of Saturn are made up of very tiny pieces of matter. There are so many objects floati ...
Lecture ppt - UCO/Lick Observatory
... – Works for point sources – But: IR AO systems inject more thermal background, because of many mirror surfaces. Also throughput to detector goes down. – In astronomy, faint extended objects can actually be harder to see with AO. Limiting factor is sky background, and AO doesn’t improve this for exte ...
... – Works for point sources – But: IR AO systems inject more thermal background, because of many mirror surfaces. Also throughput to detector goes down. – In astronomy, faint extended objects can actually be harder to see with AO. Limiting factor is sky background, and AO doesn’t improve this for exte ...
The Space-Based Visible Sensor - The Johns Hopkins University
... celestial phenomena. Finally, the SBV sensor will demonstrate technologies required for a space-based, visible-band, above-the-horizon surveillance sensor. The SBV sensor uses 420 × 420 pixel charge-coupled device (CCD) imagers, designed and manufactured at the Massachusetts Institute of Technology’ ...
... celestial phenomena. Finally, the SBV sensor will demonstrate technologies required for a space-based, visible-band, above-the-horizon surveillance sensor. The SBV sensor uses 420 × 420 pixel charge-coupled device (CCD) imagers, designed and manufactured at the Massachusetts Institute of Technology’ ...
2008-03 LAAS Bulletin I - Los Angeles Astronomical Society
... stars, but the Winter Triangle has two stars with white dwarf companions. So maybe the Winter Triangle is both brighter and more interesting than the better known Summer Triangle. Sirius A (a Canis Majoris) is the brightest star in the night sky, so obviously also the brightest star in the Winter Tr ...
... stars, but the Winter Triangle has two stars with white dwarf companions. So maybe the Winter Triangle is both brighter and more interesting than the better known Summer Triangle. Sirius A (a Canis Majoris) is the brightest star in the night sky, so obviously also the brightest star in the Winter Tr ...
how to set out an angle with the theo020 theodolite
... 15 Unlock the vertical clamp and rotate the telescope until the horizontal crosshair is near B. 16 Lock the vertical clamp 17 Turn the vertical alignment knob until the horizontal crosshair is exactly on B 18 Release the circle clamp (the small silver lever). 19 Release the horizontal clamp 20 Sight ...
... 15 Unlock the vertical clamp and rotate the telescope until the horizontal crosshair is near B. 16 Lock the vertical clamp 17 Turn the vertical alignment knob until the horizontal crosshair is exactly on B 18 Release the circle clamp (the small silver lever). 19 Release the horizontal clamp 20 Sight ...
observing manual - Texas Tech University
... 11. Now the hand paddle should be displaying a date. Use the up/down buttons at the bottom of the hand paddle to enter the CORRECT date. Then press “ENTER”. 12. Once this is done, the hand paddle should display “ALIGN”. Press “MODE” twice, and the hand paddle should now display “SETUP”. 13. Once ...
... 11. Now the hand paddle should be displaying a date. Use the up/down buttons at the bottom of the hand paddle to enter the CORRECT date. Then press “ENTER”. 12. Once this is done, the hand paddle should display “ALIGN”. Press “MODE” twice, and the hand paddle should now display “SETUP”. 13. Once ...
Celestron Dacl"fl"c ...the world`s leading manufacturer the Celestron
... Celesrron 5 scales down to five inches of clear aperture all of the fine features of the Celestron 8. It causes failll celestial objects to appear 188 times brighter than to the unaided eye and its resolution is 0.8 arc seconds. If your interest in astronomy is something less than all-encompassing, ...
... Celesrron 5 scales down to five inches of clear aperture all of the fine features of the Celestron 8. It causes failll celestial objects to appear 188 times brighter than to the unaided eye and its resolution is 0.8 arc seconds. If your interest in astronomy is something less than all-encompassing, ...
Hard X-ray Sky - High Energy Astrophysics
... Search for obscured AGN & dormant BHs. Do all galaxies contain central BHs? How did they get there and how do BHs affect their host galaxies? Extreme Physics around the BHs. • Transients or Exotic Variable X-ray Sources Stellar BHs, SGRs, Supernovae Breakouts, … ...
... Search for obscured AGN & dormant BHs. Do all galaxies contain central BHs? How did they get there and how do BHs affect their host galaxies? Extreme Physics around the BHs. • Transients or Exotic Variable X-ray Sources Stellar BHs, SGRs, Supernovae Breakouts, … ...
Asiago_2012_NEON_Hook
... • A concave spherical mirror suffers from severe spherical aberration and has limited use without additional optics (more about this later) • A concave paraboloid focuses light to a perfect image on its axis but suffers from coma (~1/F2) and astigmatism off-axis • For long focal ratios (f/4 and grea ...
... • A concave spherical mirror suffers from severe spherical aberration and has limited use without additional optics (more about this later) • A concave paraboloid focuses light to a perfect image on its axis but suffers from coma (~1/F2) and astigmatism off-axis • For long focal ratios (f/4 and grea ...
Very good
... radius of curvature of 10000 mm, diameter of 500 mm and 1.7 mm thickness The tuning of parameters for the scaled-up procedure is not an easy job, but the results are very encouraging ...
... radius of curvature of 10000 mm, diameter of 500 mm and 1.7 mm thickness The tuning of parameters for the scaled-up procedure is not an easy job, but the results are very encouraging ...
Adaptive Optics Update
... • Total power in the light scattered by the optical surfaces : – Coating ...
... • Total power in the light scattered by the optical surfaces : – Coating ...
Manufacture of mirror glass substrates for the NuSTAR mission
... 2009), expected to be launched into an equatorial low earth orbit in 2011, will have two mirror assemblies capable of imaging X-rays in the hard X-ray band between 5 keV and 80 keV. It will be the first X-ray observatory using multilayer coatings to significantly expand the bandwidth of the typical ...
... 2009), expected to be launched into an equatorial low earth orbit in 2011, will have two mirror assemblies capable of imaging X-rays in the hard X-ray band between 5 keV and 80 keV. It will be the first X-ray observatory using multilayer coatings to significantly expand the bandwidth of the typical ...
Orion® StarShoot™ AutoGuider inStructiOn MAnuAl
... An equatorial mount with dual axis motors and a RJ-12 autoguide port is required. Just about any equatorial mount equipped with an autoguide port will work with the SSAG (Figure 3a). The SSAG is “ST-4” compatible which uses the same pin out configuration as the first generation CCD autoguiders (Figu ...
... An equatorial mount with dual axis motors and a RJ-12 autoguide port is required. Just about any equatorial mount equipped with an autoguide port will work with the SSAG (Figure 3a). The SSAG is “ST-4” compatible which uses the same pin out configuration as the first generation CCD autoguiders (Figu ...
Precision interferometer
... If the beams of light originate from the same source, there is generally some degree of correlation between the frequency and phase of the oscillations. At one point in space the light from the beams may be continually in phase. In this case, the combined field will always be a maximum and a bright ...
... If the beams of light originate from the same source, there is generally some degree of correlation between the frequency and phase of the oscillations. At one point in space the light from the beams may be continually in phase. In this case, the combined field will always be a maximum and a bright ...
A Bluetooth Telescope Controller - ATM
... himself. To realize this, he can base his project on a worked-out possibility available on the web. One of these systems is the wideely used design of Mel Bartels, commercialized by Dan Gray of Sidereal Technology. A somewhat less used alternative is the system designed by Martin Cibulski, which has ...
... himself. To realize this, he can base his project on a worked-out possibility available on the web. One of these systems is the wideely used design of Mel Bartels, commercialized by Dan Gray of Sidereal Technology. A somewhat less used alternative is the system designed by Martin Cibulski, which has ...
NS2-M3C12S2_-_The_Radiotelescope
... from swirling, excited gases and celestial bodies. A particular kind of wave was found to be emitted by the cool, quiet hydrogen clouds strewn throughout space. ...
... from swirling, excited gases and celestial bodies. A particular kind of wave was found to be emitted by the cool, quiet hydrogen clouds strewn throughout space. ...
Very Large Telescope
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The Very Large Telescope (VLT) is a telescope operated by the European Southern Observatory on Cerro Paranal in the Atacama Desert of northern Chile. The VLT consists of four individual telescopes, each with a primary mirror 8.2 m across, which are generally used separately but can be used together to achieve very high angular resolution. The four separate optical telescopes are known as Antu, Kueyen, Melipal and Yepun, which are all words for astronomical objects in the Mapuche language. The telescopes form an array which is complemented by four movable Auxiliary Telescopes (ATs) of 1.8 m aperture.The VLT operates at visible and infrared wavelengths. Each individual telescope can detect objects roughly four billion times fainter than can be detected with the naked eye, and when all the telescopes are combined, the facility can achieve an angular resolution of about 0.001 arc-second (This is equivalent to roughly 2 meters resolution at the distance of the Moon).In single telescope mode of operation angular resolution is about 0.05 arc-second.The VLT is the most productive ground-based facility for astronomy, with only the Hubble Space Telescope generating more scientific papers among facilities operating at visible wavelengths. Among the pioneering observations carried out using the VLT are the first direct image of an exoplanet, the tracking of individual stars moving around the supermassive black hole at the centre of the Milky Way, and observations of the afterglow of the furthest known gamma-ray burst.