ppt
... 4. Beam overlap reduces requirements on both mirror and laser 5. Can be tested on Electra & Mercury ...
... 4. Beam overlap reduces requirements on both mirror and laser 5. Can be tested on Electra & Mercury ...
ASTRONOMY PORTFOLIO 2009 Atacama Cosmology Telescope
... workers powers of reasoning and physical ability are seriously affected when working at this high altitude. ...
... workers powers of reasoning and physical ability are seriously affected when working at this high altitude. ...
Paper
... of the mirrors a general concave asphere. The significant advantage of these designs is the spherical primary and the relatively small diameter of the single asphere. There are however other telescope designs which should be considered. These include the Ritchey-Chrétien (RC), a relayed Ritchey-Chré ...
... of the mirrors a general concave asphere. The significant advantage of these designs is the spherical primary and the relatively small diameter of the single asphere. There are however other telescope designs which should be considered. These include the Ritchey-Chrétien (RC), a relayed Ritchey-Chré ...
Curved mirrors - schoolphysics
... changes take place measure the distance from the mirror where they happen. Experiment Three Use the cylindrical metal curved mirrors, a lamp and a set of three slits. Shine three rays of light onto the mirror, try it from both sides. Draw a diagram in your books to show what happens in each case. Re ...
... changes take place measure the distance from the mirror where they happen. Experiment Three Use the cylindrical metal curved mirrors, a lamp and a set of three slits. Shine three rays of light onto the mirror, try it from both sides. Draw a diagram in your books to show what happens in each case. Re ...
VIRUS Instrument Collimator Assembly
... The optical design of a VIRUS unit spectrograph is a simple off-axis Schmidt collimator coupled with a traditional Schmidt vacuum camera. The VIRUS collimator has three optics: a spherical collimator mirror, a folding flat, and a volume-phase holographic (VPH) grating. These optics proved to be rela ...
... The optical design of a VIRUS unit spectrograph is a simple off-axis Schmidt collimator coupled with a traditional Schmidt vacuum camera. The VIRUS collimator has three optics: a spherical collimator mirror, a folding flat, and a volume-phase holographic (VPH) grating. These optics proved to be rela ...
Use of 3D virtual environments in Teaching Astronomy and Physics
... intimidated by the telescope hardware, they may not be familiar with the constellations, the finder-scope inverts its image, and of course they are required to work in the dark. After performing a synchronisation most students will assume that this has worked perfectly and guide the telescope to th ...
... intimidated by the telescope hardware, they may not be familiar with the constellations, the finder-scope inverts its image, and of course they are required to work in the dark. After performing a synchronisation most students will assume that this has worked perfectly and guide the telescope to th ...
telescopes - NPZ Optics
... High magnification of the main telescope makes it difficult to find a required celestial object in the sky because of the small field of view. This is why the telescope is equipped with a low-power finder scope with a wide field of view. The finder scope makes it easier to locate the object you want ...
... High magnification of the main telescope makes it difficult to find a required celestial object in the sky because of the small field of view. This is why the telescope is equipped with a low-power finder scope with a wide field of view. The finder scope makes it easier to locate the object you want ...
July-August 2015 - Nottingham Astronomical Society
... NAS Helpdesk At the July meeting we will have some telescopes on show with various focal lengths and focal ratios. These terms are briefly outlined below. Come and say hello. Equipment basics: Focal length, focal ratio, field of view The focal length of a telescope is measured in millimetres (mm) a ...
... NAS Helpdesk At the July meeting we will have some telescopes on show with various focal lengths and focal ratios. These terms are briefly outlined below. Come and say hello. Equipment basics: Focal length, focal ratio, field of view The focal length of a telescope is measured in millimetres (mm) a ...
400 YEARS OF THE TELESCOPE
... Circle showing a view through a simple refractor as if the audience were looking through it. As it pans around it shows a view of the Moon, Jupiter with its moons, and the Milky Way. Fly through the telescope seeing two pieces of glass coming together in front of a fuzzy title, as they line up the t ...
... Circle showing a view through a simple refractor as if the audience were looking through it. As it pans around it shows a view of the Moon, Jupiter with its moons, and the Milky Way. Fly through the telescope seeing two pieces of glass coming together in front of a fuzzy title, as they line up the t ...
Document
... Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. © 2013 Pearson Education, Inc. ...
... Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. © 2013 Pearson Education, Inc. ...
don_lamb - New Views of the Universe
... of greatest remaining mystery of GRBs: The Nature of short GRBs Follow-up observations at X-ray, optical, and radio wavelengths have led to compelling evidence that short GRBs come from merging compact binaries (as David Eichler, Mario Livio, Tsvi Piran, and David Schramm conjectured in 1989) It ...
... of greatest remaining mystery of GRBs: The Nature of short GRBs Follow-up observations at X-ray, optical, and radio wavelengths have led to compelling evidence that short GRBs come from merging compact binaries (as David Eichler, Mario Livio, Tsvi Piran, and David Schramm conjectured in 1989) It ...
CASA Concept for HROS - Thirty Meter Telescope
... particular the fiber-fed IFUs and dichroics, are presented in a companion paper in this volume (Osterman et al. 2006) 1. HROS will be a multi-purpose high-resolution optical spectrograph for the TMT. In order to meet its operational and functional requirements, there are several issues to confront. ...
... particular the fiber-fed IFUs and dichroics, are presented in a companion paper in this volume (Osterman et al. 2006) 1. HROS will be a multi-purpose high-resolution optical spectrograph for the TMT. In order to meet its operational and functional requirements, there are several issues to confront. ...
Folie 1
... • Optical CCDs produce one electron per photon. Many photons have to be detected before a measurable signal can be produced. A single X-ray photon can produce 100-1000 electrons (1 electron per 3.6 eV of energy). With low amplifier noise this can be measured. Thus X-ray CCDs are photon counting devi ...
... • Optical CCDs produce one electron per photon. Many photons have to be detected before a measurable signal can be produced. A single X-ray photon can produce 100-1000 electrons (1 electron per 3.6 eV of energy). With low amplifier noise this can be measured. Thus X-ray CCDs are photon counting devi ...
The Poor Man`s Telescope - Royal Astronomical Society of Canada
... lap and work it around a few times without pressure until you can see through the back that every part of the lap is wet with soup. Then bring the mirror concentric with the tool and place a weight on it for 15 or 20 minutes. An electric iron makes a good weight. Let it press and after twenty minute ...
... lap and work it around a few times without pressure until you can see through the back that every part of the lap is wet with soup. Then bring the mirror concentric with the tool and place a weight on it for 15 or 20 minutes. An electric iron makes a good weight. Let it press and after twenty minute ...
scope buyer`s guide - Astronomy Magazine
... 12.5, the MK67 is a serious planetary observer’s scope. One of the highlights of this telescope is its low weight — only 9.5 pounds. The optical tube assembly has a carry handle, and it also comes with a padded travel bag. A 2" Crayford focuser is standard, as is a 7x35mm straight-through finder sco ...
... 12.5, the MK67 is a serious planetary observer’s scope. One of the highlights of this telescope is its low weight — only 9.5 pounds. The optical tube assembly has a carry handle, and it also comes with a padded travel bag. A 2" Crayford focuser is standard, as is a 7x35mm straight-through finder sco ...
Spectroscopy-Heidelberg
... For low orders m (low spectral resolution, large free spectral range) one can use a filter that blocks light from the other orders For high orders m (the free spectral range is very small), use “cross disperser”: a second dispersive element (usually a prism), mounted with the dispersion direction pe ...
... For low orders m (low spectral resolution, large free spectral range) one can use a filter that blocks light from the other orders For high orders m (the free spectral range is very small), use “cross disperser”: a second dispersive element (usually a prism), mounted with the dispersion direction pe ...
PARTS LIST FOR AT50 Telescope
... The popular and more familiar constellations often provide the easiest landmarks to help find the planet’s locations and paths of orbit. Most people have looked up at the sky at night and seen some of the planets without even realizing it. A planet looks like a bright star but does not twinkle like ...
... The popular and more familiar constellations often provide the easiest landmarks to help find the planet’s locations and paths of orbit. Most people have looked up at the sky at night and seen some of the planets without even realizing it. A planet looks like a bright star but does not twinkle like ...
ASTR 511 (O’Connell) FALL 2003 DUE FRIDAY SEPTEMBER 19
... The Clark 6-in refractor lens is of high quality, and this telescope is diffraction-limited. The point-spread-function (PSF) of a telescope in the diffraction limit is called the Airy pattern. In class I quoted the diameter of the PSF at 5500 Å as ∼ 28 00 /D, where D is the diameter of the telescop ...
... The Clark 6-in refractor lens is of high quality, and this telescope is diffraction-limited. The point-spread-function (PSF) of a telescope in the diffraction limit is called the Airy pattern. In class I quoted the diameter of the PSF at 5500 Å as ∼ 28 00 /D, where D is the diameter of the telescop ...
Universe Discovery Guides: January
... Imagine the Universe, the Infrared Processing and Analysis Center (IPAC), the James Webb Space Telescope, the Kepler Mission, the Milky Way Project, the Night Sky Network (NSN), the Nuclear Spectroscopic Telescope Array (Nu-STAR), Observing with NASA (OwN), Other Worlds, the Planck mission, PlanetQu ...
... Imagine the Universe, the Infrared Processing and Analysis Center (IPAC), the James Webb Space Telescope, the Kepler Mission, the Milky Way Project, the Night Sky Network (NSN), the Nuclear Spectroscopic Telescope Array (Nu-STAR), Observing with NASA (OwN), Other Worlds, the Planck mission, PlanetQu ...
Resume
... another filter wheel slipping issue which was noticed during some nights of engineering observation runs. We also fixed a few other issues with calibration mirror movement stage, etc. in the third mission. Using the data from the initial engineering run I also did extensive site calibration studies ...
... another filter wheel slipping issue which was noticed during some nights of engineering observation runs. We also fixed a few other issues with calibration mirror movement stage, etc. in the third mission. Using the data from the initial engineering run I also did extensive site calibration studies ...
X-ray binaries
... Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an accretion disc around a compact object. Clear classifiction is based on optical data or on mass function derived from X-ray observations. If a sou ...
... Many sources are found in globular clusters. Also there are more and more LMXBs found in more distant galaxies. In optics the emission is dominated by an accretion disc around a compact object. Clear classifiction is based on optical data or on mass function derived from X-ray observations. If a sou ...
XMM-Newton
The XMM-Newton, also known as the X-ray Multi-Mirror Mission and the High Throughput X-ray Spectroscopy Mission, is an orbiting X-ray observatory launched by ESA in December 1999 on an Ariane 5 rocket. It is named in honor of Sir Isaac Newton. The telescope was placed in a very eccentric 48 hour elliptical orbit at 40°; at its apogee it is nearly 114,000 kilometres (71,000 mi) from Earth, while the perigee is only 7,000 kilometres (4,300 mi).