CFRP composite optical telescope assembly for the 1m ULTRA project
... package, however, will be the same as one used on a traditional glass and steel telescope. The ULTRA instrumentation package is expected to be up to 50 Kg. These requirements lead to an OTA design that keeps the weight (and required stiffness) near the declination axis as much as possible. The top e ...
... package, however, will be the same as one used on a traditional glass and steel telescope. The ULTRA instrumentation package is expected to be up to 50 Kg. These requirements lead to an OTA design that keeps the weight (and required stiffness) near the declination axis as much as possible. The top e ...
... We describe the design and development status of GRAAL, the Ground-layer adaptive optics assisted by Laser, which will deliver enhanced images to the Hawk-I instrument on the VLT. GRAAL is an adaptive optics module, part of AOF, the Adaptive optics facility, using four Laser- and one natural guide-s ...
RTICC Rapid Terrestrial Imaging CubeSat Constellation
... The goal of this project was to develop a detailed mission design for an Earth imaging application using a low-cost constellation of CubeSats. The requirements for this mission include coverage between 55 degrees North and South, image resolution of 3 meters, image acquisition within 5 minutes of co ...
... The goal of this project was to develop a detailed mission design for an Earth imaging application using a low-cost constellation of CubeSats. The requirements for this mission include coverage between 55 degrees North and South, image resolution of 3 meters, image acquisition within 5 minutes of co ...
XRaySNR_sm - Gettysburg College
... the gas physics to create the models; we assumed the gas was thin enough that once an Xray photon is emitted by an atom, it escapes the gas (the gas is what astronomers call “optically thin”). In reality, the gas is probably dense enough in some regions to reabsorb the X-rays, and this changes the r ...
... the gas physics to create the models; we assumed the gas was thin enough that once an Xray photon is emitted by an atom, it escapes the gas (the gas is what astronomers call “optically thin”). In reality, the gas is probably dense enough in some regions to reabsorb the X-rays, and this changes the r ...
Joint Scientific Opportunities with the Giant Magellan Telescope and
... the structure of disks in binary environments. The size and morphology of gaps will test the dynamical theory, which is also fundamental to theories of planet formation. In addition, ALMA will measure directly ...
... the structure of disks in binary environments. The size and morphology of gaps will test the dynamical theory, which is also fundamental to theories of planet formation. In addition, ALMA will measure directly ...
... Americas from 1951 to about 1992. Their refracting telescopes were geared for the amateur astronomer and school science class markets. As Unitron prospered their offerings grew from the initial smaller models including the 2.4 telescope, up to massive 9 inch (225mm or 8.8 inch) telescopes made for p ...
The first photometric analysis of the overcontact binary MQ UMa with
... 2006, 2011). It has been widely accepted that the eruption of V1309 Sco was the result of a cool short-period binary merging. In this paper, we focus on the high fill-out, low mass ratio overcontact binaries which are at the late evolutionary stages of the contact configuration. Photometric analysis ...
... 2006, 2011). It has been widely accepted that the eruption of V1309 Sco was the result of a cool short-period binary merging. In this paper, we focus on the high fill-out, low mass ratio overcontact binaries which are at the late evolutionary stages of the contact configuration. Photometric analysis ...
UCO Focus - Lick Observatory
... up all night searching star to star. But the idea of letting a computer take the graveyard shift was more appealing after months of little sleep. So we wrote software to replace ourselves with a robot,” said University of Hawaii graduate student Benjamin “BJ” Fulton. The Keck Observatory found the f ...
... up all night searching star to star. But the idea of letting a computer take the graveyard shift was more appealing after months of little sleep. So we wrote software to replace ourselves with a robot,” said University of Hawaii graduate student Benjamin “BJ” Fulton. The Keck Observatory found the f ...
114EQ-ASTR
... and Declination. The celestial map also contains two poles and an equator just like a map of the Earth. The celestial poles are defined as those two points where the Earth's North and South poles, if extended to infinity, would cross the celestial sphere. Thus, the North Celestial Pole is that point ...
... and Declination. The celestial map also contains two poles and an equator just like a map of the Earth. The celestial poles are defined as those two points where the Earth's North and South poles, if extended to infinity, would cross the celestial sphere. Thus, the North Celestial Pole is that point ...
- ALMA Observatory
... challenge, as it requires combining the signals from all antennas and electronic components to produce a high-resolution image of the object under observation, with a precision of a millionth of a millionth of an arcsecond (angular distance). In other words, ALMA is an interferometer that can functi ...
... challenge, as it requires combining the signals from all antennas and electronic components to produce a high-resolution image of the object under observation, with a precision of a millionth of a millionth of an arcsecond (angular distance). In other words, ALMA is an interferometer that can functi ...
New Meade 60 EQ-D 8-03
... Line up one of the leg braces (4, Fig. 1) between the opening of one of the tripod leg brace supports (5, Fig. 1) on the tripod so that one of the short screws will be able to pass through the holes of the leg brace support and the leg brace. Using a Phillips-head screwdriver, thread one of the shor ...
... Line up one of the leg braces (4, Fig. 1) between the opening of one of the tripod leg brace supports (5, Fig. 1) on the tripod so that one of the short screws will be able to pass through the holes of the leg brace support and the leg brace. Using a Phillips-head screwdriver, thread one of the shor ...
Propagation of Light Through Atmospheric Turbulence Lecture 5
... at your favorite wavelength. • At excellent sites such as Mauna Kea in Hawaii, r0 at λ = 0.5 micron is 10 - 30 cm. • But there is a big range from night to night, and at times also within a night. Page 30 ...
... at your favorite wavelength. • At excellent sites such as Mauna Kea in Hawaii, r0 at λ = 0.5 micron is 10 - 30 cm. • But there is a big range from night to night, and at times also within a night. Page 30 ...
X-Ray Astronomy of Supernova Remnants
... the gas physics to create the models; we assumed the gas was thin enough that once an Xray photon is emitted by an atom, it escapes the gas (the gas is what astronomers call “optically thin”). In reality, the gas is probably dense enough in some regions to reabsorb the X-rays, and this changes the r ...
... the gas physics to create the models; we assumed the gas was thin enough that once an Xray photon is emitted by an atom, it escapes the gas (the gas is what astronomers call “optically thin”). In reality, the gas is probably dense enough in some regions to reabsorb the X-rays, and this changes the r ...
test methods for secondary mirrors of cassegrain telescopes with
... co-operation reached between the two organizations, is responsib1e for the design and construction of the observatory's newest and 1argest te1escope. This Division has now begun to issue aseries of Technica1 Reports treating the various design and construction aspects of the different parts of the t ...
... co-operation reached between the two organizations, is responsib1e for the design and construction of the observatory's newest and 1argest te1escope. This Division has now begun to issue aseries of Technica1 Reports treating the various design and construction aspects of the different parts of the t ...
INSTRUCTION MANUAL Orion® SpaceProbe 130mm EQ
... Now, look in the finder scope. Is the object visible? Ideally, it will be somewhere in the finder’s field of view. If it is not, some coarse adjustments of the two black nylon finder scope alignment thumb screws will be needed to get the finder scope roughly parallel to the main tube. The finder sco ...
... Now, look in the finder scope. Is the object visible? Ideally, it will be somewhere in the finder’s field of view. If it is not, some coarse adjustments of the two black nylon finder scope alignment thumb screws will be needed to get the finder scope roughly parallel to the main tube. The finder sco ...
Telescope 101 – An Introduction To The World Of Telescopes
... The magnification ........................................................38 The exit pupil .............................................................41 The individual parts of a telescope ......................................42 The telescope mirror .............................................. ...
... The magnification ........................................................38 The exit pupil .............................................................41 The individual parts of a telescope ......................................42 The telescope mirror .............................................. ...
Combating Mirror Seeing
... Zerodur will equalize 1.1x faster than Borofloat when both are the same thickness, say 25mm. Although aluminum is denser than both Zerodur and Borofloat, as well as being quite close to both in heat capacity, it has far superior thermal conductivity. In the same thickness aluminum will equalize 95.7 ...
... Zerodur will equalize 1.1x faster than Borofloat when both are the same thickness, say 25mm. Although aluminum is denser than both Zerodur and Borofloat, as well as being quite close to both in heat capacity, it has far superior thermal conductivity. In the same thickness aluminum will equalize 95.7 ...
3.2 Multi-Conjugate Adaptive Optics
... altitudes to make a three-dimensional correction of the wavefront distortions introduced by the Earth's atmosphere. In order to drive these mirrors, several wavefront reference sources are required. This is accomplished with an array of laser guide stars. While the theoretical analysis of multi-conj ...
... altitudes to make a three-dimensional correction of the wavefront distortions introduced by the Earth's atmosphere. In order to drive these mirrors, several wavefront reference sources are required. This is accomplished with an array of laser guide stars. While the theoretical analysis of multi-conj ...
1. INTRODUCTION
... as these stars often show several distinct stochastic events. We have focused our analysis on young, active stars that do not display rotationally modulated light curves and that can be considered as single X-ray sources. Some stars in the sample are detected or known binary systems, in which only o ...
... as these stars often show several distinct stochastic events. We have focused our analysis on young, active stars that do not display rotationally modulated light curves and that can be considered as single X-ray sources. Some stars in the sample are detected or known binary systems, in which only o ...
Developments in Space Policies, Programmes and Technologies
... configurations of the Ariane 6 for future launches.1 On the issue of future international cooperation in space transportation and space exploration, the combined use of the ATV and other similar spacecraft from the U.S. (Dragon and Cygnus COTS missions), Japan (HTV) and Russia (Progress M) to serve ...
... configurations of the Ariane 6 for future launches.1 On the issue of future international cooperation in space transportation and space exploration, the combined use of the ATV and other similar spacecraft from the U.S. (Dragon and Cygnus COTS missions), Japan (HTV) and Russia (Progress M) to serve ...
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).