Binoculars and Telescopes - Shreveport
... which is price. Those fancy, color corrected objectives are expensive. consequently, most instruments of this kind are four inches or less in diameter. Indeed, the refractor has the highest cost per inch of objective diameter of any amateur instrument. Another problem is that they do not gather much ...
... which is price. Those fancy, color corrected objectives are expensive. consequently, most instruments of this kind are four inches or less in diameter. Indeed, the refractor has the highest cost per inch of objective diameter of any amateur instrument. Another problem is that they do not gather much ...
Calculating “Magnification” and “Field of View”
... Calculating “Magnification” and “Field of View” For a Telescope There are four basic optical aspects governing a telescope which effects observing: Magnification (or Magnifying Power): A telescope’s image enlargement capability. Field of View (Actual): The area of the sky viewed with a telescope/eye ...
... Calculating “Magnification” and “Field of View” For a Telescope There are four basic optical aspects governing a telescope which effects observing: Magnification (or Magnifying Power): A telescope’s image enlargement capability. Field of View (Actual): The area of the sky viewed with a telescope/eye ...
Quo Vadis
... • How can one find, independent on satellites and/or any other space or ground-based detectors, operating at different wavelengths, many VHE gamma ray sources ? • A sensitive sky survay instrument can do it! 22 February 2006 ...
... • How can one find, independent on satellites and/or any other space or ground-based detectors, operating at different wavelengths, many VHE gamma ray sources ? • A sensitive sky survay instrument can do it! 22 February 2006 ...
10 12 18 Invitation List
... designed solely to collect radiation in order to measure its intensity or to carry out spectral analysis,” mentioning that, “No attempt is made to form an image so a flux collector can have a more crudely figured reflective surface than a conventional telescope.” We have extended Mitton’s light buck ...
... designed solely to collect radiation in order to measure its intensity or to carry out spectral analysis,” mentioning that, “No attempt is made to form an image so a flux collector can have a more crudely figured reflective surface than a conventional telescope.” We have extended Mitton’s light buck ...
January
... mirrors, arranged in a floral pattern. One spare off-axis mirror will also be made. Seven of the eight mirrors will be off-axis and require new techniques in casting and polishing. The first off-axis mirror will be cast this coming summer (2005) to address the new challenges. “The upcoming decade pr ...
... mirrors, arranged in a floral pattern. One spare off-axis mirror will also be made. Seven of the eight mirrors will be off-axis and require new techniques in casting and polishing. The first off-axis mirror will be cast this coming summer (2005) to address the new challenges. “The upcoming decade pr ...
400 YEARS OF THE TELESCOPE
... the star. By comparing the observed spectrum to those created in a lab, they can tell how hot the star is. They detect what elements are in the star’s upper layers, and they can find its temperature. They can also observe the star’s apparent motion by how much the spectrum is “shifted”. Have you eve ...
... the star. By comparing the observed spectrum to those created in a lab, they can tell how hot the star is. They detect what elements are in the star’s upper layers, and they can find its temperature. They can also observe the star’s apparent motion by how much the spectrum is “shifted”. Have you eve ...
Slide 1
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
... accretion disk indicating BH or WH in center--a quadrillion solar masses!) The Pisces-Cetus Complex: may include 400 rich (and lots of poor) clusters. Brent Tully. Is the Universe homogeneous? God's Bubble Bath: Galaxy superclusters seem to from in bubble structures and filaments with Voids 100-500 ...
Telescopes
... Concave spherical primary Convex spherical secondary - Spherical corrector lens plate removes first order spherical aberration - Tend to have narrower field of view than Schmidt-Cassegrains due to longer focal length - Invented by Dmitri Maksutov (1896-1964) - Does not scale very well with large ape ...
... Concave spherical primary Convex spherical secondary - Spherical corrector lens plate removes first order spherical aberration - Tend to have narrower field of view than Schmidt-Cassegrains due to longer focal length - Invented by Dmitri Maksutov (1896-1964) - Does not scale very well with large ape ...
By the time astronomers got a big telescope into orbit, they
... Number 1 January/February 1980, and "Astronomy From the Ground Up" by ...
... Number 1 January/February 1980, and "Astronomy From the Ground Up" by ...
Lab 2 Procedures
... After that, one of the doublets can be mounted to the rail. (Notice the configuration of the 4F system and think about how to orient the lens.) The far most lens from the telescope should be aligned first. (Notice that the telescope cannot focus any nearer than 500mm from itself, so make sure you le ...
... After that, one of the doublets can be mounted to the rail. (Notice the configuration of the 4F system and think about how to orient the lens.) The far most lens from the telescope should be aligned first. (Notice that the telescope cannot focus any nearer than 500mm from itself, so make sure you le ...
Teaching Text Structure with Understanding the Scale of the Universe
... Before 1900, the word galaxy just meant the Milky Way. There were no other known galaxies. Since the invention of the telescope, astronomers had observed thousands of what we now know to be galaxies— but no one then knew what they were. Astronomers didn’t know that they were separate from the Milky ...
... Before 1900, the word galaxy just meant the Milky Way. There were no other known galaxies. Since the invention of the telescope, astronomers had observed thousands of what we now know to be galaxies— but no one then knew what they were. Astronomers didn’t know that they were separate from the Milky ...
Characteristics of Blue Elliptical Galaxies
... Department of Physics University of North Texas March 31, 2005 Mentor: Dr. Mike Fanelli, UNT Collaborators: Dr. Pam Marcum, TCU & NASA Headquarters Dr. Christian Aars, San Angelo State U. ...
... Department of Physics University of North Texas March 31, 2005 Mentor: Dr. Mike Fanelli, UNT Collaborators: Dr. Pam Marcum, TCU & NASA Headquarters Dr. Christian Aars, San Angelo State U. ...
OLEARY_2004 - Armagh Observatory
... the drop in magnitude was very large and so the number of pixels recorded was very small, therefore the percentage inaccuracy was very large. This lead to unevenness in the light curve. It is also seen that the light curve is not centred at phase equal to zero. This is due to the fact that I have no ...
... the drop in magnitude was very large and so the number of pixels recorded was very small, therefore the percentage inaccuracy was very large. This lead to unevenness in the light curve. It is also seen that the light curve is not centred at phase equal to zero. This is due to the fact that I have no ...
OLEARY_2004_white
... The star, NN Serpentis is in fact, not one star but two and so is known as a binary star. One of these stars is a white dwarf, a very small dense star with a surface temperature of approx 70,000oC. The other star is a red dwarf, a lighter, less dense (and so larger in volume) star with a temperature ...
... The star, NN Serpentis is in fact, not one star but two and so is known as a binary star. One of these stars is a white dwarf, a very small dense star with a surface temperature of approx 70,000oC. The other star is a red dwarf, a lighter, less dense (and so larger in volume) star with a temperature ...
Section 19.3
... given off by the Milky Way. No matter how they refined their technique, they kept detecting a background noise that interfered with their observations. The “noise” these scientists found was the cosmic microwave background radiation predicted by the Big Bang theory. ...
... given off by the Milky Way. No matter how they refined their technique, they kept detecting a background noise that interfered with their observations. The “noise” these scientists found was the cosmic microwave background radiation predicted by the Big Bang theory. ...
Design a Space Telescope - Herschel Space Observatory
... Problems for groups (or individuals to solve) are (loosely) based on real life space observatory missions, from past, present and future. 1) A private organization has funded your group to research into the birth and evolution of stars the distant and nearby Universe. The budget of your mission is £ ...
... Problems for groups (or individuals to solve) are (loosely) based on real life space observatory missions, from past, present and future. 1) A private organization has funded your group to research into the birth and evolution of stars the distant and nearby Universe. The budget of your mission is £ ...
Ch 5 notes on telescopes
... focusing it to form an image to study. However, as telescopes become larger and larger there are several important factors to consider when selecting one optical telescope over another. Read page 110 to help you decide which one of the two is better. Give reasons why. ...
... focusing it to form an image to study. However, as telescopes become larger and larger there are several important factors to consider when selecting one optical telescope over another. Read page 110 to help you decide which one of the two is better. Give reasons why. ...
Maksutov
... To create a pointing one has to follow the instructions carefully or otherwise the pointing can be off by some arc minutes. This is enough to bring the desired object outside of the eyepiece’s field of view, while not crucially for observing bright objects. It can be helpful during imaging of dim ob ...
... To create a pointing one has to follow the instructions carefully or otherwise the pointing can be off by some arc minutes. This is enough to bring the desired object outside of the eyepiece’s field of view, while not crucially for observing bright objects. It can be helpful during imaging of dim ob ...
Meade® 8" and 10" LX200GPS Schmidt
... Pictor 1616XTE Imager, dichroic color filters, and Pictor 201 Autoguider, performed flawlessly. My data compared very favorably to that acquired by professional observatories prior to my imaging. Data processing by JPL showed very similar results and error ranges equal to or better than other data c ...
... Pictor 1616XTE Imager, dichroic color filters, and Pictor 201 Autoguider, performed flawlessly. My data compared very favorably to that acquired by professional observatories prior to my imaging. Data processing by JPL showed very similar results and error ranges equal to or better than other data c ...
NEO lecture 02 - Observations of NEOs
... The camera at ESA’s telescope on Tenerife is cooled by liquid nitrogen to temperatures such that the dark current and its noise contribution can be neglected. The readout is slow enough so that also its noise contribution can be neglected. The camera is operated with a bias of DNbias ~ 8000. For a ...
... The camera at ESA’s telescope on Tenerife is cooled by liquid nitrogen to temperatures such that the dark current and its noise contribution can be neglected. The readout is slow enough so that also its noise contribution can be neglected. The camera is operated with a bias of DNbias ~ 8000. For a ...
WorldWide Telescope: Sky Mode
... WorldWide Telescope has the concept of a study and a survey: • Study – is usually a single or composite image of one object in space. • Survey – is usually a comprehensive collection of data from a large area of the sky. A study is loaded from a “Collection” by clicking a thumbnail in the top panel. ...
... WorldWide Telescope has the concept of a study and a survey: • Study – is usually a single or composite image of one object in space. • Survey – is usually a comprehensive collection of data from a large area of the sky. A study is loaded from a “Collection” by clicking a thumbnail in the top panel. ...
as Word doc - Virtual Observatory
... WorldWide Telescope has the concept of a study and a survey: Study – is usually a single or composite image of one object in space. Survey – is usually a comprehensive collection of data from a large area of the sky. A study is loaded from a “Collection” by clicking a thumbnail in the top panel. ...
... WorldWide Telescope has the concept of a study and a survey: Study – is usually a single or composite image of one object in space. Survey – is usually a comprehensive collection of data from a large area of the sky. A study is loaded from a “Collection” by clicking a thumbnail in the top panel. ...
Slide 1
... parallelism, concentricity, and perpendicularity between optical and mechanical axes. The active optics system will then be used to obtain fine alignment by adjusting M1 tip, tilt, piston, and figure; M2 tip, tilt and piston; and/or PFC tilt. Results obtained with the SOAR telescope mount indicate t ...
... parallelism, concentricity, and perpendicularity between optical and mechanical axes. The active optics system will then be used to obtain fine alignment by adjusting M1 tip, tilt, piston, and figure; M2 tip, tilt and piston; and/or PFC tilt. Results obtained with the SOAR telescope mount indicate t ...
Wide Angle Cross-Folded Telescope for Multiple
... Modern payloads for optical communication as described in [1] have a rather small field of view. It is sized just enough to perform the acquisition of a counter terminal whose position is known with sufficient accuracy. Their large pointing range is achieved by means of a Coarse Pointing device whic ...
... Modern payloads for optical communication as described in [1] have a rather small field of view. It is sized just enough to perform the acquisition of a counter terminal whose position is known with sufficient accuracy. Their large pointing range is achieved by means of a Coarse Pointing device whic ...
Technical Specifications Madawaska Highlands Observatory 1m f/7 Ritcher-Chrétien Nasmyth
... focus allows significant flexibility. Located a few tens of meters from the 1-m, f/2.4 telescope, it will benefit from the infrastructure and logistics already existing. The facility is situated in the Madawaska Highlands of Ontario with a measured nigh sky brightness of 21.9 mag/arcsec2 (40º half a ...
... focus allows significant flexibility. Located a few tens of meters from the 1-m, f/2.4 telescope, it will benefit from the infrastructure and logistics already existing. The facility is situated in the Madawaska Highlands of Ontario with a measured nigh sky brightness of 21.9 mag/arcsec2 (40º half a ...
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.