
The Revolution in Telescope Aperture
... D/t of the primary mirrors to reduce the mass of the mirror, the supporting telescope and the surrounding structure. The availability of analytical models opened the way to understanding the detailed performance of these lighter mirrors and telescope structures and the active systems needed to suppo ...
... D/t of the primary mirrors to reduce the mass of the mirror, the supporting telescope and the surrounding structure. The availability of analytical models opened the way to understanding the detailed performance of these lighter mirrors and telescope structures and the active systems needed to suppo ...
Exploring the cosmos
... European Extremely Large Telescope, is due to begin operations in 2018. It will consist of 984 hexagonal segments of this size, fitted together to make a mirror 42 metres across – around the length of five London buses. A telescope this big could examine the oldest stars and galaxies, and search for ...
... European Extremely Large Telescope, is due to begin operations in 2018. It will consist of 984 hexagonal segments of this size, fitted together to make a mirror 42 metres across – around the length of five London buses. A telescope this big could examine the oldest stars and galaxies, and search for ...
MS word document
... Dr Michael Andersen (University of Oulu, FI) discussed the future of high throughput spectroscopy. He noted that a significant fraction of national instrument budgets are spent on redshift-machines for cosmological research. However these produce large data sets with large biases since there are no ...
... Dr Michael Andersen (University of Oulu, FI) discussed the future of high throughput spectroscopy. He noted that a significant fraction of national instrument budgets are spent on redshift-machines for cosmological research. However these produce large data sets with large biases since there are no ...
Light: The Cosmic Messenger - Department of Physics & Astronomy
... affect ground-based observations? • The best ground-based sites for astronomical observing are: ...
... affect ground-based observations? • The best ground-based sites for astronomical observing are: ...
bringing it closer - eGFI
... discuss the concept of light. Light is electromagnetic energy composed of photons which are the smallest unit of electromagnetic energy. Light comes in different wave lengths and energies. In fact, the shorter the light waves - the higher the energy of the photons and the longer the light wave - the ...
... discuss the concept of light. Light is electromagnetic energy composed of photons which are the smallest unit of electromagnetic energy. Light comes in different wave lengths and energies. In fact, the shorter the light waves - the higher the energy of the photons and the longer the light wave - the ...
File - Earth Space Science
... • The solar system includes the sun, Earth, the other planets, and many smaller objects such as asteroids and comets. • The solar system is part of a galaxy. • galaxy a collection of stars, dust, and gas bound together by gravity • The galaxy in which the solar system resides is called the Milky Way ...
... • The solar system includes the sun, Earth, the other planets, and many smaller objects such as asteroids and comets. • The solar system is part of a galaxy. • galaxy a collection of stars, dust, and gas bound together by gravity • The galaxy in which the solar system resides is called the Milky Way ...
Moon and Mercury non-mafic silicate composition
... observations, aperture, focal length, wavelengths, pointing precision and stability, specific observing location(s), critical observation time(s), are repeat flights required? or whatever else that may drive the hardware or mission ...
... observations, aperture, focal length, wavelengths, pointing precision and stability, specific observing location(s), critical observation time(s), are repeat flights required? or whatever else that may drive the hardware or mission ...
E0900349-v12_ETM-Tel-Secondary_Parabolic Specification
... Edge orientation mark shall be placed to indicate maximum edge thickness within rotational tolerance of 1 deg, as shown in figure 1: 0.24 +/- 0.1 mm wide x FULL BARREL LENGTH. ADDITIONAL MARKING @ 90 Deg. intervals +/-2 Degrees, on barrel, and on back face (full diameter length) as shown in Figure:2 ...
... Edge orientation mark shall be placed to indicate maximum edge thickness within rotational tolerance of 1 deg, as shown in figure 1: 0.24 +/- 0.1 mm wide x FULL BARREL LENGTH. ADDITIONAL MARKING @ 90 Deg. intervals +/-2 Degrees, on barrel, and on back face (full diameter length) as shown in Figure:2 ...
Unit 8 Chapter 26 Studying Space
... which is 149,597,870.691 km (150 million) Light Year measures the distance that a ray of light travels in one year, which is approximately 9.46 X 1012 km 1 light year = 9.5 X 1012 km 1 A.U. = 1.5 X 108 km This means that there are 6033 X 104 A.U.’s per light year. The next closest object to us aside ...
... which is 149,597,870.691 km (150 million) Light Year measures the distance that a ray of light travels in one year, which is approximately 9.46 X 1012 km 1 light year = 9.5 X 1012 km 1 A.U. = 1.5 X 108 km This means that there are 6033 X 104 A.U.’s per light year. The next closest object to us aside ...
$doc.title
... multiple targets in the FGS1R aperture (the “pickle”). Because these targets can cover a large area across the pickle, it is frequently necessary to impose an ORIENT range on the observation to ensure ...
... multiple targets in the FGS1R aperture (the “pickle”). Because these targets can cover a large area across the pickle, it is frequently necessary to impose an ORIENT range on the observation to ensure ...
Basic Optical Devices
... Real, that is the light rays really meet there or Virtual that is the rays only appear to meet there 3. Disperse white light into a spectrum 4. Create an Image which is… Real and can be Projected onto a screen (its really there) or Virtual which cannot be projected (it just appears to be there!) ...
... Real, that is the light rays really meet there or Virtual that is the rays only appear to meet there 3. Disperse white light into a spectrum 4. Create an Image which is… Real and can be Projected onto a screen (its really there) or Virtual which cannot be projected (it just appears to be there!) ...
WEBQUEST: Light and the Electromagnetic
... 5. One of the largest radio telescopes arrays is located where? ...
... 5. One of the largest radio telescopes arrays is located where? ...
Making a reflector telescope
... different to the first telescope invented (the refractor telescope.) This other kind of telescope can be over 10m in diameter! It is called a reflector telescope. It was invented by Isaac Newton around 1670. The main difference is that it uses curved mirrors instead of lenses to collect the light. H ...
... different to the first telescope invented (the refractor telescope.) This other kind of telescope can be over 10m in diameter! It is called a reflector telescope. It was invented by Isaac Newton around 1670. The main difference is that it uses curved mirrors instead of lenses to collect the light. H ...
Slide 1
... seeing; no U-band image quality requirement; modification of the ADC to a tilt/decenter style on element L4; and repackaging of the PFA without a secondary mirror. The new PFA design uses fused silica in 4/5 elements and standard glass LLF6 in element 4, and utilizes spherical surfaces on all but tw ...
... seeing; no U-band image quality requirement; modification of the ADC to a tilt/decenter style on element L4; and repackaging of the PFA without a secondary mirror. The new PFA design uses fused silica in 4/5 elements and standard glass LLF6 in element 4, and utilizes spherical surfaces on all but tw ...
8 m Club Meeting - Adaptive optics
... Measurement of zodiacal dust around nearby stars using nulling (TPF) ...
... Measurement of zodiacal dust around nearby stars using nulling (TPF) ...
Lecture
... Use of a narrow band filter for Doppler imaging. The solid and dash Ha line profiles show the unshifted and shifted wavelength positions. The red and blue curves show the filter profiles tuned to red and blue wings of the line profile. Making two images, one each in the red- and blue wing of the lin ...
... Use of a narrow band filter for Doppler imaging. The solid and dash Ha line profiles show the unshifted and shifted wavelength positions. The red and blue curves show the filter profiles tuned to red and blue wings of the line profile. Making two images, one each in the red- and blue wing of the lin ...
Workshop Summary & Discussion
... Need for large dishes: Star and planet formation • Wide area GMC surveys in the Galaxy and LMC/SMCs filling the gap between ALMA and existing CO surveys (Ohnishi) • Wide area high resolution unbiased surveys of dust continuum for studies of short time scale objects such as first cores and transitio ...
... Need for large dishes: Star and planet formation • Wide area GMC surveys in the Galaxy and LMC/SMCs filling the gap between ALMA and existing CO surveys (Ohnishi) • Wide area high resolution unbiased surveys of dust continuum for studies of short time scale objects such as first cores and transitio ...
PDF 9 - The Open University
... Unaided human eyes, well as they may serve the needs of everyday life, are not very suitable for detailed astronomical observation. First, the eye has a limited sensitivity. A distant source of light, such as a star, will not be seen at all unless the intensity of light from it reaching your eye is ...
... Unaided human eyes, well as they may serve the needs of everyday life, are not very suitable for detailed astronomical observation. First, the eye has a limited sensitivity. A distant source of light, such as a star, will not be seen at all unless the intensity of light from it reaching your eye is ...
MAORY: A Multi-conjugate Adaptive Optics RelaY for the E-ELT
... MICADO also requires a gravity invariant output port. MAORY is also requested to provide a second output port designed to feed another instrument located on the side of the module on the Nasmyth platform. Candidate science instruments that might be served by MAORY are either a single field near-inf ...
... MICADO also requires a gravity invariant output port. MAORY is also requested to provide a second output port designed to feed another instrument located on the side of the module on the Nasmyth platform. Candidate science instruments that might be served by MAORY are either a single field near-inf ...
3-20-16.5281751 - little auction service
... DVDs (many) movies, TV series, etc. many complete sets Books (many) various topics some sets Dyson vacuum Figurines Child’s rocking horse Digital bathroom scale Atlases Posters and pictures Office supplies, desks, & chairs Too much to list ...
... DVDs (many) movies, TV series, etc. many complete sets Books (many) various topics some sets Dyson vacuum Figurines Child’s rocking horse Digital bathroom scale Atlases Posters and pictures Office supplies, desks, & chairs Too much to list ...
The science potential of atmospheric Cherenkov arrays used as intensity interferometers
... 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 them suitable, unconfused, ...
... 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 them suitable, unconfused, ...
Telescopes
... distances between lens surfaces are most likely useful quantities to know in manufacturing the telescopes, so such quantities will be provided. Remember, for the example previously done, f1 = 100 cm and f2 = 1 cm. Readily available in the Newport catalog for precision achromatic doublets are f1 = 75 ...
... distances between lens surfaces are most likely useful quantities to know in manufacturing the telescopes, so such quantities will be provided. Remember, for the example previously done, f1 = 100 cm and f2 = 1 cm. Readily available in the Newport catalog for precision achromatic doublets are f1 = 75 ...
University Lowbrow Astronomers Visit
... switch places at 2:30 p.m. A teacher, or a parent or professional assistant appointed by the school should accompany each of the groups at all times. Part A: Using Telescopes (Multi-Purpose Room) Firstscope, Funscope or Starblast telescopes will be set up at several stations (on tables) on the stage ...
... switch places at 2:30 p.m. A teacher, or a parent or professional assistant appointed by the school should accompany each of the groups at all times. Part A: Using Telescopes (Multi-Purpose Room) Firstscope, Funscope or Starblast telescopes will be set up at several stations (on tables) on the stage ...
3. Telescopes: The Tools of Astronomy
... • Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. ...
... • Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. ...
Very Large Telescope
.jpg?width=300)
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.