TWINKLE – A Low Earth Orbit Visible and Infrared Exoplanet
... Twinkle is a space mission designed for visible and near-IR spectroscopic observations of extrasolar planets. Twinkle’s highly stable instrument will allow the photometric and spectroscopic observation of a wide range of planetary classes around different types of stars, with a focus on bright sourc ...
... Twinkle is a space mission designed for visible and near-IR spectroscopic observations of extrasolar planets. Twinkle’s highly stable instrument will allow the photometric and spectroscopic observation of a wide range of planetary classes around different types of stars, with a focus on bright sourc ...
Developments for coating, testing, and aligning Cherenkov
... layers. Furthermore, a higher humidity condensation rate has been recently observed compared to metallic or intermediate coatings [4]. Since the last solution is so far the least explored one (at least concerning IACTs), we have focused our research on a reliable and easy way to produce an interfero ...
... layers. Furthermore, a higher humidity condensation rate has been recently observed compared to metallic or intermediate coatings [4]. Since the last solution is so far the least explored one (at least concerning IACTs), we have focused our research on a reliable and easy way to produce an interfero ...
Inexpensive mount for a large millimeter
... performance using active control based on strut temperature measurements, without the cost and complexity of a panel edge sensor system. Thermal deformation of the primary can be calculated using a finite element model, but the model must be optimized based on surface error measurements with differe ...
... performance using active control based on strut temperature measurements, without the cost and complexity of a panel edge sensor system. Thermal deformation of the primary can be calculated using a finite element model, but the model must be optimized based on surface error measurements with differe ...
Chapter 4 Telescope Making Basics
... For planetary or stellar observation, a telescope with a clear aperture of between 130 mm and 250 mm and a focal ratio greater than 6 will give good results. These objects are typically viewed under high magnification, and the optics must be of very good quality (λ/10 minimum). The handling characte ...
... For planetary or stellar observation, a telescope with a clear aperture of between 130 mm and 250 mm and a focal ratio greater than 6 will give good results. These objects are typically viewed under high magnification, and the optics must be of very good quality (λ/10 minimum). The handling characte ...
Teaching Tips Table of Contents - Hubble Deep Field
... 12. The Hubble Deep Field opened new cosmic territory for exploration. What other deep-sky surveys did Hubble participate in? ............................................................... 41 13. What is the Hubble Deep Field-South (HDF-S)? ..................................................... 42 1 ...
... 12. The Hubble Deep Field opened new cosmic territory for exploration. What other deep-sky surveys did Hubble participate in? ............................................................... 41 13. What is the Hubble Deep Field-South (HDF-S)? ..................................................... 42 1 ...
PDF 9 - The Open University
... passing through different parts of a lens are not focused to the same point by spherical surfaces; this is known as spherical aberration. This wouldn't be a problem except for the fact that spherical surfaces are relatively easy to produce, whereas parabolic surfaces, which give a perfect focus, are ...
... passing through different parts of a lens are not focused to the same point by spherical surfaces; this is known as spherical aberration. This wouldn't be a problem except for the fact that spherical surfaces are relatively easy to produce, whereas parabolic surfaces, which give a perfect focus, are ...
dobsonians - Optical Vision Ltd
... Calculating the Field of View The size of the view that you see through your telescope is called the true (or actual) field of view and it is determined by the design of the eyepiece. Every eyepiece has a value, called the apparent field of view, which is supplied by the manufacturer. Field of view ...
... Calculating the Field of View The size of the view that you see through your telescope is called the true (or actual) field of view and it is determined by the design of the eyepiece. Every eyepiece has a value, called the apparent field of view, which is supplied by the manufacturer. Field of view ...
- CUNY Academic Works
... early civilization gazed up at the sky in order to tell time, to aid in agriculture, to serve for navigational purposes, or to determine the timing of religious observances. In the 1970s the American archaeologist Alexander Marshack examined a 30,000 year old Paleolithic bone found in Drodogne, Fran ...
... early civilization gazed up at the sky in order to tell time, to aid in agriculture, to serve for navigational purposes, or to determine the timing of religious observances. In the 1970s the American archaeologist Alexander Marshack examined a 30,000 year old Paleolithic bone found in Drodogne, Fran ...
scope buyer`s guide - Astronomy Magazine
... The NP 127 is classified as an apochromat, but the objective combines four separate lenses, a design known as a Petzval objective. In fact, the NP in the name stands for “Nagler-Petzval” to indicate that the designer (Al Nagler) has slightly modified the original design. The focal ratio, ...
... The NP 127 is classified as an apochromat, but the objective combines four separate lenses, a design known as a Petzval objective. In fact, the NP in the name stands for “Nagler-Petzval” to indicate that the designer (Al Nagler) has slightly modified the original design. The focal ratio, ...
Instruction Manual Meade Instruments Corporation
... as magnification is increased, back down to a lower power; The atmosphere is not steady enough to support higher powers. Note: Changing eyepieces changes power. 3. If you are observing an astronomical object (the Moon, a planet, star, etc.) you will notice that the object will begin to move slowly ...
... as magnification is increased, back down to a lower power; The atmosphere is not steady enough to support higher powers. Note: Changing eyepieces changes power. 3. If you are observing an astronomical object (the Moon, a planet, star, etc.) you will notice that the object will begin to move slowly ...
template
... Conclusions of assessment activities The European industry and scientific community are very well placed to contribute effectively to the SPICA mission: • Large heritage from Herschel programme allows to exploit expertise and to minimise the development risk. • The Telescope Assembly is feasible an ...
... Conclusions of assessment activities The European industry and scientific community are very well placed to contribute effectively to the SPICA mission: • Large heritage from Herschel programme allows to exploit expertise and to minimise the development risk. • The Telescope Assembly is feasible an ...
ESO`s VLT Takes First Detailed Image of Disc around
... objects. The size of the region of the disc observed corresponds to 150 million kilometres — about the distance between the Earth and the Sun, but located at 360 light-years from Earth. These very tiny details have an angular size of around 10 milliarcseconds — equivalent to trying to pick out small ...
... objects. The size of the region of the disc observed corresponds to 150 million kilometres — about the distance between the Earth and the Sun, but located at 360 light-years from Earth. These very tiny details have an angular size of around 10 milliarcseconds — equivalent to trying to pick out small ...
File - Science Maths Master
... The objective lens of the telescope described in part (a) has a diameter of 15 cm. The telescope is used to view the star Mizar, which is a double star with an angular separation of 7.0 × l0–5 rad. Calculate the approximate value of the resolving power of the telescope for light of wavelength 6.0 × ...
... The objective lens of the telescope described in part (a) has a diameter of 15 cm. The telescope is used to view the star Mizar, which is a double star with an angular separation of 7.0 × l0–5 rad. Calculate the approximate value of the resolving power of the telescope for light of wavelength 6.0 × ...
Dobsonians Reflector Telescopes
... Calculating the Field of View The size of the view that you see through your telescope is called the true (or actual) field of view and it is determined by the design of the eyepiece. Every eyepiece has a value, called the apparent field of view, which is supplied by the manufacturer. Field of view ...
... Calculating the Field of View The size of the view that you see through your telescope is called the true (or actual) field of view and it is determined by the design of the eyepiece. Every eyepiece has a value, called the apparent field of view, which is supplied by the manufacturer. Field of view ...
chapter 13 cosmology
... matter as well as the entire S-T continuum. One cannot imagine that there is empty space outside of the primordial atom. The question of what is outside the universe can not be answered by science. Very near to time 0, the universe was dominated by electromagnetic radiation but as the universe expan ...
... matter as well as the entire S-T continuum. One cannot imagine that there is empty space outside of the primordial atom. The question of what is outside the universe can not be answered by science. Very near to time 0, the universe was dominated by electromagnetic radiation but as the universe expan ...
Imaging with multi-aperture optical telescopes and an
... built or being built for astronomy are Michelson-type interferometers (see, for instance, [1] and [8]). These interferometers have independent elementary telescopes pointing the object. Therefore long delay lines, of stroke comparable to the baseline length, are required to acquire and track the nul ...
... built or being built for astronomy are Michelson-type interferometers (see, for instance, [1] and [8]). These interferometers have independent elementary telescopes pointing the object. Therefore long delay lines, of stroke comparable to the baseline length, are required to acquire and track the nul ...
next generation optical spectrograph for noao
... realistically observed for a given astronomical study from a few to a few hundred. This increased the validity of the results by an order of magnitude, moving the science out of the regime of small number statistics. Technological advances in the past decade (optics, optical coatings, CCD mosaics, a ...
... realistically observed for a given astronomical study from a few to a few hundred. This increased the validity of the results by an order of magnitude, moving the science out of the regime of small number statistics. Technological advances in the past decade (optics, optical coatings, CCD mosaics, a ...
the printable Hartness House Workshop Schedule in pdf
... Robo-AO is the first and only fully automated adaptive optics laser guide star adaptive optics (AO) instrument. It was developed as an instrument for 1-3m robotic telescopes, in order to take advantage of their availability to pursue large survey programs and target of opportunity observations that ...
... Robo-AO is the first and only fully automated adaptive optics laser guide star adaptive optics (AO) instrument. It was developed as an instrument for 1-3m robotic telescopes, in order to take advantage of their availability to pursue large survey programs and target of opportunity observations that ...
Lab: Telescopic Observations of the Moon and Outer Planets
... existed superior beings just one planet away from us, which might come and invade the Earth. (This is one reason that the 1938 radio broadcast of “War of the Worlds” caused mass panic.) Also visible in telescopic views of Mars are its polar ice caps, which we now know contain both ices of both H2O a ...
... existed superior beings just one planet away from us, which might come and invade the Earth. (This is one reason that the 1938 radio broadcast of “War of the Worlds” caused mass panic.) Also visible in telescopic views of Mars are its polar ice caps, which we now know contain both ices of both H2O a ...
Day Laboratory Exercise #3: Optics and Telescopes
... With the eyepiece lens removed, but the secondary mirror in place, measure the focal length of the primary mirror by projecting an image onto a piece of paper held to the side, near the secondary mirror, and moving the paper until the image is in focus. Measure the distance from the paper to the cen ...
... With the eyepiece lens removed, but the secondary mirror in place, measure the focal length of the primary mirror by projecting an image onto a piece of paper held to the side, near the secondary mirror, and moving the paper until the image is in focus. Measure the distance from the paper to the cen ...
The wide field upgrade for the Hobby-Eberly Telescope
... 2. Current status of HET The HET is operating close to its original specifications, and in many areas, such as mirror alignment hold time, it significantly exceeds specifications. One important performance exception has been the delivered image quality. While much improved over recent years, over th ...
... 2. Current status of HET The HET is operating close to its original specifications, and in many areas, such as mirror alignment hold time, it significantly exceeds specifications. One important performance exception has been the delivered image quality. While much improved over recent years, over th ...
... With the eyepiece lens removed, but the secondary mirror in place, measure the focal length of the primary mirror by projecting an image onto a piece of paper held to the side, near the secondary mirror, and moving the paper until the image is in focus. Measure the distance from the paper to the cen ...
The LAMA prototype telescope - UBC
... mirrors, would have the Fizeau geometry enabling wide-field interferometric imaging. In order to facilitate construction, testing and operation, the LPT would be located at or near a developed astronomical site in the continental United States. While the primary purpose of the facility is to develop ...
... mirrors, would have the Fizeau geometry enabling wide-field interferometric imaging. In order to facilitate construction, testing and operation, the LPT would be located at or near a developed astronomical site in the continental United States. While the primary purpose of the facility is to develop ...
Paper
... corrects the image over some practical field, but the design approaches vary widely and not all would be applicable to a robust, deployable spectroscopic telescope. One option would be to use a post prime focus type corrector on an articulated or fixed (Arecibo type) spherical primary mirror. The ot ...
... corrects the image over some practical field, but the design approaches vary widely and not all would be applicable to a robust, deployable spectroscopic telescope. One option would be to use a post prime focus type corrector on an articulated or fixed (Arecibo type) spherical primary mirror. The ot ...
24.1 Hubble`s Galaxy Classification
... clusters in the halo of our Galaxy, while Cepheid variables, being so much brighter, allow measurement of galaxies to about 25 Mpc away. The image below shows a Cepheid variable spotted in a galaxy in the Virgo Cluster of galaxies. You can see it getting fainter and brighter in the insets. ...
... clusters in the halo of our Galaxy, while Cepheid variables, being so much brighter, allow measurement of galaxies to about 25 Mpc away. The image below shows a Cepheid variable spotted in a galaxy in the Virgo Cluster of galaxies. You can see it getting fainter and brighter in the insets. ...
Hubble Space Telescope
The Hubble Space Telescope (HST) is a space telescope that was launched into low Earth orbit in 1990, and remains in operation. With a 2.4-meter (7.9 ft) mirror, Hubble's four main instruments observe in the near ultraviolet, visible, and near infrared spectra. The telescope is named after the astronomer Edwin Hubble.Hubble's orbit outside the distortion of Earth's atmosphere allows it to take extremely high-resolution images with negligible background light. Hubble has recorded some of the most detailed visible-light images ever, allowing a deep view into space and time. Many Hubble observations have led to breakthroughs in astrophysics, such as accurately determining the rate of expansion of the universe.Although not the first space telescope, Hubble is one of the largest and most versatile, and is well known as both a vital research tool and a public relations boon for astronomy. The HST was built by the United States space agency NASA, with contributions from the European Space Agency, and is operated by the Space Telescope Science Institute. The HST is one of NASA's Great Observatories, along with the Compton Gamma Ray Observatory, the Chandra X-ray Observatory, and the Spitzer Space Telescope.Space telescopes were proposed as early as 1923. Hubble was funded in the 1970s, with a proposed launch in 1983, but the project was beset by technical delays, budget problems, and the Challenger disaster. When finally launched in 1990, Hubble's main mirror was found to have been ground incorrectly, compromising the telescope's capabilities. The optics were corrected to their intended quality by a servicing mission in 1993.Hubble is the only telescope designed to be serviced in space by astronauts. After launch by Space Shuttle Discovery in 1990, four subsequent Space Shuttle missions repaired, upgraded, and replaced systems on the telescope. A fifth mission was canceled on safety grounds following the Columbia disaster. However, after spirited public discussion, NASA administrator Mike Griffin approved one final servicing mission, completed in 2009. The telescope is still operating as of 2015, and may last until 2030–2040. Its scientific successor, the James Webb Space Telescope (JWST), is scheduled for launch in 2018.