Spokane Public Library The Spokane Astronomical
... subjects to appear like the photographs you see in books and magazines; many will look like dim gray smudges. As you become more experienced and your observing skills get sharper, you will be able to ferret out more and more subtle details and structure. Deep-Sky Objects, also referred to as “dim-f ...
... subjects to appear like the photographs you see in books and magazines; many will look like dim gray smudges. As you become more experienced and your observing skills get sharper, you will be able to ferret out more and more subtle details and structure. Deep-Sky Objects, also referred to as “dim-f ...
MEMS telescope
... The noise signal amplitude – is amplitude of single photoelectron – For the measurement of Photons Flux on the level more than ~ 4-5 ...
... The noise signal amplitude – is amplitude of single photoelectron – For the measurement of Photons Flux on the level more than ~ 4-5 ...
Astronomical Instruments - Wayne State University Physics and
... consists of a concave metal reflector, called a dish, quite analogous to an optical telescope mirror The radio waves collected by the dish are reflected to the focal point of the reflector where a receiver detects the waves and record them Astronomers often construct a pictorial representation of th ...
... consists of a concave metal reflector, called a dish, quite analogous to an optical telescope mirror The radio waves collected by the dish are reflected to the focal point of the reflector where a receiver detects the waves and record them Astronomers often construct a pictorial representation of th ...
Ferrari ZenithStar Anniversary Ed.
... optimal focus. The stainless steel reinforcements make the focuser a masterpiece of mechanics. After adjusting the focuser tension with an allen screw, your focuser will hold even heavy accessories without problems. On the top of the focuser part, you will find a thumbscrew. This is used to lock the ...
... optimal focus. The stainless steel reinforcements make the focuser a masterpiece of mechanics. After adjusting the focuser tension with an allen screw, your focuser will hold even heavy accessories without problems. On the top of the focuser part, you will find a thumbscrew. This is used to lock the ...
Galileo
... “If the forces acting upon an object are balanced, then the acceleration of that object will be 0 m/s/s.” (meter per second squared.) An example is, if you put a ball on top of an inclined plane and it starts rolling down, the speed will increase as it continues down. The longer the inclined plane, ...
... “If the forces acting upon an object are balanced, then the acceleration of that object will be 0 m/s/s.” (meter per second squared.) An example is, if you put a ball on top of an inclined plane and it starts rolling down, the speed will increase as it continues down. The longer the inclined plane, ...
THE LAS CAMPANAS INFRARED SURVEY CAMERA S. E. Persson
... evacuated dewar and operated at a temperature sufficiently low that negligible excess thermal background from the camera itself would be added. The choice of array manufacturer was straightforward: Rockwell’s HAWAII HgCdTe arrays (1024 1024 18.5 lm pixels) were of high quality and high quantum efficie ...
... evacuated dewar and operated at a temperature sufficiently low that negligible excess thermal background from the camera itself would be added. The choice of array manufacturer was straightforward: Rockwell’s HAWAII HgCdTe arrays (1024 1024 18.5 lm pixels) were of high quality and high quantum efficie ...
book_text4
... suggested a space-based telescope. However, it was decades before technology caught up with the dream. The American astronomer Lyman Spitzer proposed a more realistic plan for a space telescope in 1946. From a position in space above the Earth's atmosphere, a telescope could detect the pristine ligh ...
... suggested a space-based telescope. However, it was decades before technology caught up with the dream. The American astronomer Lyman Spitzer proposed a more realistic plan for a space telescope in 1946. From a position in space above the Earth's atmosphere, a telescope could detect the pristine ligh ...
VOYAGER® 8 INCH DOBSONIAN TELESCOPE MODEL 78-8000
... point. One of the favorite starting points in astronomy is the moon. This is an object sure to please any budding astronomer or experienced veteran. When you have developed proficiency at this level, other objects become good targets. Saturn, Mars, Jupiter, and Venus are good second steps to take. 2 ...
... point. One of the favorite starting points in astronomy is the moon. This is an object sure to please any budding astronomer or experienced veteran. When you have developed proficiency at this level, other objects become good targets. Saturn, Mars, Jupiter, and Venus are good second steps to take. 2 ...
Milky Way Galaxy
... nebulae” and most astronomers believed them to be clouds of gas and stars associated with our own Milky Way. The breakthrough came in 1924 when Edwin Hubble was able to measure the distance to the “Great Nebula in Andromeda” (M 31, at right) and found its distance to be much larger than the diameter ...
... nebulae” and most astronomers believed them to be clouds of gas and stars associated with our own Milky Way. The breakthrough came in 1924 when Edwin Hubble was able to measure the distance to the “Great Nebula in Andromeda” (M 31, at right) and found its distance to be much larger than the diameter ...
SALTeNEWS_9
... for all of the on-sky testing and is being used to “verify” system conformance to the overall specifications of the telescope (e.g. pointing, tracking, throughput and image quality). Its full imaging mode will be commissioned in early 2005, with the installation of optics, when it will then serve a ...
... for all of the on-sky testing and is being used to “verify” system conformance to the overall specifications of the telescope (e.g. pointing, tracking, throughput and image quality). Its full imaging mode will be commissioned in early 2005, with the installation of optics, when it will then serve a ...
Orion StarBlast 4.5” Telescope STAR Program
... of the year. Deep sky objects, also referred to as dim-fuzzies, are often hard to find. They are worth the effort, being some of most wonderful sights in the night sky. To find a deep sky object, look at the monthly Evening Sky Map (www. skymaps.com) to see what constellations are visible this month ...
... of the year. Deep sky objects, also referred to as dim-fuzzies, are often hard to find. They are worth the effort, being some of most wonderful sights in the night sky. To find a deep sky object, look at the monthly Evening Sky Map (www. skymaps.com) to see what constellations are visible this month ...
Schools @ Lord`s Bridge - University of Cambridge
... As an example of using different wavelengths of electromagnetic waves to study the universe, we can look at the binary star T Tauri, in the constellation of Taurus. Binary star systems consist of two stars (bi means two or double) very close together in the sky, so we need a high level of resolution ...
... As an example of using different wavelengths of electromagnetic waves to study the universe, we can look at the binary star T Tauri, in the constellation of Taurus. Binary star systems consist of two stars (bi means two or double) very close together in the sky, so we need a high level of resolution ...
The Cook Memorial Library
... If you find that it’s awkward to put your eye up to the eyepiece, you can rotate the tube by loosening the knob on the tube clamp and moving the optical tube until the focuser is in a convenient position. Be sure to tighten it again! You may find that the optical tube is either too hard to move or ...
... If you find that it’s awkward to put your eye up to the eyepiece, you can rotate the tube by loosening the knob on the tube clamp and moving the optical tube until the focuser is in a convenient position. Be sure to tighten it again! You may find that the optical tube is either too hard to move or ...
Interstellar Space Not as Empty as you Might Think
... Pattern of lines in stellar spectrum indicates composition and velocity of the star and the interstellar gas between the star and us. Each element has its own set of spectral lines (“fingerprints”). If the star is moving relative to the Earth, those lines will move by the Doppler effect ...
... Pattern of lines in stellar spectrum indicates composition and velocity of the star and the interstellar gas between the star and us. Each element has its own set of spectral lines (“fingerprints”). If the star is moving relative to the Earth, those lines will move by the Doppler effect ...
Interstellar Space Not as Empty as you Might Think
... - how do we detect it? - what forms does it take, and what’s its composition? - how empty is interstellar space (density)? - effects on starlight passing through it (reddening) - importance to galaxies overall (role in galactic evolution) ...
... - how do we detect it? - what forms does it take, and what’s its composition? - how empty is interstellar space (density)? - effects on starlight passing through it (reddening) - importance to galaxies overall (role in galactic evolution) ...
Interstellar Space
... Pattern of lines in stellar spectrum indicates composition and velocity of the star and the interstellar gas between the star and us. Each element has its own set of spectral lines (“fingerprints”). If the star is moving relative to the Earth, those lines will move by the Doppler effect ...
... Pattern of lines in stellar spectrum indicates composition and velocity of the star and the interstellar gas between the star and us. Each element has its own set of spectral lines (“fingerprints”). If the star is moving relative to the Earth, those lines will move by the Doppler effect ...
The basic physics of AO
... (pressure is constant, because velocities are highly subsonic -- pressure differences are rapidly smoothed out by sound wave propagation) ...
... (pressure is constant, because velocities are highly subsonic -- pressure differences are rapidly smoothed out by sound wave propagation) ...
Instruction Manual Meade Instruments Corporation
... telescope is provided with this feature. However, be advised, compared to star-hopping, object location by use of setting circles requires a greater investment in time and patience to achieve a more precise alignment of the telescope’s polar axis to the celestial pole. For this reason, in part, star ...
... telescope is provided with this feature. However, be advised, compared to star-hopping, object location by use of setting circles requires a greater investment in time and patience to achieve a more precise alignment of the telescope’s polar axis to the celestial pole. For this reason, in part, star ...
HD 140283: A Star in the Solar Neighborhood that Formed Shortly
... N(p, γ)15O reaction that occurred ...
... N(p, γ)15O reaction that occurred ...
Tech Note: Wide Field-of-View Curved Focal Plane Array
... DARPA initiated the SST program in 2002 to enhance the capabilities that could be offered to the U.S. Space Surveillance Network (SSN). The SSN is a worldwide network of radars and optical telescopes that provides tracking and custody of resident space objects. Ground-based optical telescope sites a ...
... DARPA initiated the SST program in 2002 to enhance the capabilities that could be offered to the U.S. Space Surveillance Network (SSN). The SSN is a worldwide network of radars and optical telescopes that provides tracking and custody of resident space objects. Ground-based optical telescope sites a ...
October 2011 - Newbury Astronomical Society
... This has happened before but it was well worth having a look because it does not happen very often. The last time it happened was over 16 years ago. The Great Red Spot is normally embedded in the South Equatorial Belt but can be seen against nothing but white clouds in the image above. The moons in ...
... This has happened before but it was well worth having a look because it does not happen very often. The last time it happened was over 16 years ago. The Great Red Spot is normally embedded in the South Equatorial Belt but can be seen against nothing but white clouds in the image above. The moons in ...
1 The Hubble Story (10:56)
... Hubble’s extremely high resolution and sensitivity have made unique observations of objects within the Solar System possible, obtaining amazing images and rich streams of data about the nature of these bodies. Hubble has seen unprecedented detail in Jupiter’s aurorae, which are similar to those seen ...
... Hubble’s extremely high resolution and sensitivity have made unique observations of objects within the Solar System possible, obtaining amazing images and rich streams of data about the nature of these bodies. Hubble has seen unprecedented detail in Jupiter’s aurorae, which are similar to those seen ...
ROBAST: Development of a Non-Sequential Ray
... The optical systems in air-fluorescence and atmospheric Cherenkov telescopes (hereafter collectively called cosmic-ray (CR) telescopes) are a significant determinant of the telescope performance parameters, such as energy threshold, angular resolution, effective area, and field-of-view (FoV). Recent ...
... The optical systems in air-fluorescence and atmospheric Cherenkov telescopes (hereafter collectively called cosmic-ray (CR) telescopes) are a significant determinant of the telescope performance parameters, such as energy threshold, angular resolution, effective area, and field-of-view (FoV). Recent ...
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.