R FIXED UNIVERSAL TELESCOPE
... reflectors”. He also mentioned that “this type (of telescope) is incomparably well adapted for the highest requirements of astronomical photography, and of astrophysical work with very large and elaborate accessory instruments”. Ritchey’s first designs of the fixed universal telescope were completed ...
... reflectors”. He also mentioned that “this type (of telescope) is incomparably well adapted for the highest requirements of astronomical photography, and of astrophysical work with very large and elaborate accessory instruments”. Ritchey’s first designs of the fixed universal telescope were completed ...
Light Source Test at the Telescope Array Site
... 20 flights in TA site on Oct. 14, 15, and 16 in last year. We had analyzed the four calibration operation data to the center PMT 77 in camera 07 which the distance between the octocopter and the mirror is about 1.0 km. The standard deviation of the octocopter position for the flights are less than a ...
... 20 flights in TA site on Oct. 14, 15, and 16 in last year. We had analyzed the four calibration operation data to the center PMT 77 in camera 07 which the distance between the octocopter and the mirror is about 1.0 km. The standard deviation of the octocopter position for the flights are less than a ...
A. B. C. Walker - Wisconsin Association of Physics Teachers
... regions of the electromagnetic spectrum. Walker’s work involved excellent understanding of the physics of the Sun but also the use of new techniques for focusing ultraviolet radiation. Finally, he worked with a large multidisciplinary team so he also possessed considerable skill as a project manager ...
... regions of the electromagnetic spectrum. Walker’s work involved excellent understanding of the physics of the Sun but also the use of new techniques for focusing ultraviolet radiation. Finally, he worked with a large multidisciplinary team so he also possessed considerable skill as a project manager ...
Polarimetry with the Southern African Large Telescope
... • high time resolution ablility (~0.1 s) • specto- and imaging polarimetric capability • Fabry Perot imaging (incl. with pol.) ...
... • high time resolution ablility (~0.1 s) • specto- and imaging polarimetric capability • Fabry Perot imaging (incl. with pol.) ...
“Beautiful and cantankerous instruments”: telescopes, technology
... These new tools slowly helped re-define the astronomer’s interaction with the telescope. Things like auto-guiders and image intensifiers made observations easier and more efficient. But the telescope’s complexity increased because now astronomers had to modify all the things that they used to do by ...
... These new tools slowly helped re-define the astronomer’s interaction with the telescope. Things like auto-guiders and image intensifiers made observations easier and more efficient. But the telescope’s complexity increased because now astronomers had to modify all the things that they used to do by ...
Glass Mirrors by cold slumping to cover 100 m2 of the MAGIC II
... kilometers in length and few tens to hundreds of meters in width and have their maximum located around an air mass of 0.2 to 0.3, i.e. around 8-12 km altitude in case of vertical incidence. Below ≈ 100 TeV shower particles stop high up in the atmosphere and cannot be directly detected at ground. A s ...
... kilometers in length and few tens to hundreds of meters in width and have their maximum located around an air mass of 0.2 to 0.3, i.e. around 8-12 km altitude in case of vertical incidence. Below ≈ 100 TeV shower particles stop high up in the atmosphere and cannot be directly detected at ground. A s ...
Measuring Magnitudes
... the focal length of the telescope. For this reason, accurate astrometric measurements depend on the correct setting of the focal length parameter in the image info command. This parameter should be set to the focal length of the telescope in inches. An object with a known separation can be used to a ...
... the focal length of the telescope. For this reason, accurate astrometric measurements depend on the correct setting of the focal length parameter in the image info command. This parameter should be set to the focal length of the telescope in inches. An object with a known separation can be used to a ...
View PDF - Sara Seager
... Abstract. The Transiting Exoplanet Survey Satellite (TESS) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics Explorer mission. The spacecraft will be placed into a highly elliptical 13.7-day orbit around the Earth. During ...
... Abstract. The Transiting Exoplanet Survey Satellite (TESS) will search for planets transiting bright and nearby stars. TESS has been selected by NASA for launch in 2017 as an Astrophysics Explorer mission. The spacecraft will be placed into a highly elliptical 13.7-day orbit around the Earth. During ...
Nulling Interferometry A technique for blocking the light of a bright
... Main features • Phase inversion is achromatic (geometrical design) • Beamsplitter is used in double pass; provides symmetry between interferometer arms • Output beam passes through optical fiber so only core of output point spread function detected ...
... Main features • Phase inversion is achromatic (geometrical design) • Beamsplitter is used in double pass; provides symmetry between interferometer arms • Output beam passes through optical fiber so only core of output point spread function detected ...
Telescopes - Wayne State University Physics and Astronomy
... Nowadays, there are types of telescopes that collect not visible light, but other forms of EM radiation, such as radio waves, infrared, ultraviolet, X-rays, and even gamma rays Such telescopes may use collecting devices that look very different from the lenses and mirrors used in visible-light teles ...
... Nowadays, there are types of telescopes that collect not visible light, but other forms of EM radiation, such as radio waves, infrared, ultraviolet, X-rays, and even gamma rays Such telescopes may use collecting devices that look very different from the lenses and mirrors used in visible-light teles ...
Mirror Development for the Cherenkov Telescope Array
... Carbon fibre/epoxy based substrates have good mechanical properties and show the potential for fast and economical production in large quantities. The challenge is to produce mirrors with good surface qualities without labourintensive polishing. Currently, at SRC PAS, the sheet moulding compund (SMC ...
... Carbon fibre/epoxy based substrates have good mechanical properties and show the potential for fast and economical production in large quantities. The challenge is to produce mirrors with good surface qualities without labourintensive polishing. Currently, at SRC PAS, the sheet moulding compund (SMC ...
Toward a revival of Stellar Intensity Interferometry
... Michelson interferometry relies on the visibility of interferometric fringes to provide a measurement of the mutual degree of coherence between different telescopes. The complex degree of coherence depends on the distance between the two receivers as the normalized Fo ...
... Michelson interferometry relies on the visibility of interferometric fringes to provide a measurement of the mutual degree of coherence between different telescopes. The complex degree of coherence depends on the distance between the two receivers as the normalized Fo ...
buying a telescope - Lafayette Science Museum
... a telescope, multiply its diameter in inches by 50 or its diameter in millimeters by two (so a 60 mm or 2.4” telescope could use about 120 power at most; significantly higher powers would be virtually useless). Remember there are different diameters of eyepieces — get a telescope that uses 1¼” diame ...
... a telescope, multiply its diameter in inches by 50 or its diameter in millimeters by two (so a 60 mm or 2.4” telescope could use about 120 power at most; significantly higher powers would be virtually useless). Remember there are different diameters of eyepieces — get a telescope that uses 1¼” diame ...
Observing with the DIMMWIT at MRO
... Check that the stars can be seen clearly at the centre of the eyepiece. Replace the eyepiece with the camera. Connect the CCD by pressing (2). Make sure the binning mode is 2x2 (10) and the clear charge button (12) is selected. The star images should appear on the finder screen. If not, then move th ...
... Check that the stars can be seen clearly at the centre of the eyepiece. Replace the eyepiece with the camera. Connect the CCD by pressing (2). Make sure the binning mode is 2x2 (10) and the clear charge button (12) is selected. The star images should appear on the finder screen. If not, then move th ...
Day Laboratory Exercise #3: Optics and Telescopes
... the image formed from originally parallel light rays (i.e., light rays from a very distant object). The focal length of a lens depends on the curvature of the lens surface. A basic refracting telescope consists of two lenses. The larger, primary lens is called the objective, while the second lens, t ...
... the image formed from originally parallel light rays (i.e., light rays from a very distant object). The focal length of a lens depends on the curvature of the lens surface. A basic refracting telescope consists of two lenses. The larger, primary lens is called the objective, while the second lens, t ...
QUINN_2004 - Armagh Observatory
... During my 6 week placement at Armagh observatory, I was set the project of studying the change in magnitude of a variable star, KPD 1930+2752. KPD 1930+2752 is actually 2 stars, known as a binary system, it consists of 2 stars, one hot, bright sub-dwarf B star orbiting round a smaller, denser white ...
... During my 6 week placement at Armagh observatory, I was set the project of studying the change in magnitude of a variable star, KPD 1930+2752. KPD 1930+2752 is actually 2 stars, known as a binary system, it consists of 2 stars, one hot, bright sub-dwarf B star orbiting round a smaller, denser white ...
... the image formed from originally parallel light rays (i.e., light rays from a very distant object). The focal length of a lens depends on the curvature of the lens surface. A basic refracting telescope consists of two lenses. The larger, primary lens is called the objective, while the second lens, t ...
The Be/X-ray transient V0332153: evidence for a tilt between the
... discuss the evolution of the circumstellar envelope. Owing to the low inclination of the system, parameters are strongly constrained. We find strong evidence for a tilt of the orbital plane with respect to the circumstellar disc (presumably on the equatorial plane). Even though the periastron distan ...
... discuss the evolution of the circumstellar envelope. Owing to the low inclination of the system, parameters are strongly constrained. We find strong evidence for a tilt of the orbital plane with respect to the circumstellar disc (presumably on the equatorial plane). Even though the periastron distan ...
C:\Documents and Settings\ajb\My Documents\conferences
... UKIRT Wide Field Camera •5 metre cryostat cooled to 70 K •6 month operation/5 years •Quasi Schmidt design – largest cooled mirror in world •50 staff years/$8M project •4 x Rockwell HAWAII-2, 95% spacing •0.4 arcsec/pixel & 0.9 field of view ...
... UKIRT Wide Field Camera •5 metre cryostat cooled to 70 K •6 month operation/5 years •Quasi Schmidt design – largest cooled mirror in world •50 staff years/$8M project •4 x Rockwell HAWAII-2, 95% spacing •0.4 arcsec/pixel & 0.9 field of view ...
Optical Metrology for Large Telescopes
... “Meter-class” describes a category of telescopes with optical elements larger than one meter in diameter, typically operating within the infrared through visible spectra. The primary and secondary optics may be monolithic glass structures or may consist of multiple segments that can be actively alig ...
... “Meter-class” describes a category of telescopes with optical elements larger than one meter in diameter, typically operating within the infrared through visible spectra. The primary and secondary optics may be monolithic glass structures or may consist of multiple segments that can be actively alig ...
Planet definition - International Year of Astronomy 2009
... never attempted before, with more than one million people expected to participate! 100 Hours of Astronomy (100HA) is a Cornerstone project of the International Year of Astronomy 2009 (IYA2009). It is a worldwide celebration composed of a broad range of activities aimed at involving the public. 100HA ...
... never attempted before, with more than one million people expected to participate! 100 Hours of Astronomy (100HA) is a Cornerstone project of the International Year of Astronomy 2009 (IYA2009). It is a worldwide celebration composed of a broad range of activities aimed at involving the public. 100HA ...
The science potential of atmospheric Cherenkov arrays used as intensity interferometers
... Science case: young stars In the solar neighbourhood ~50 young stars with mv<8m In the last decade several young coeval stellar groups have been discovered in close proximity (~50pc) to the sun. Their closeness means the members are bright and renders the co-moving group relatively sparse – making ...
... Science case: young stars In the solar neighbourhood ~50 young stars with mv<8m In the last decade several young coeval stellar groups have been discovered in close proximity (~50pc) to the sun. Their closeness means the members are bright and renders the co-moving group relatively sparse – making ...
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).