Lecture 6 telescopes
... For a 2.5-m telescope observing light at 5000 Angstroms (greenish), resolution = 0.05". But, blurring by atmosphere limits resolution to about 1" for light. This is called seeing (radio waves, for example, don't get blurred). ...
... For a 2.5-m telescope observing light at 5000 Angstroms (greenish), resolution = 0.05". But, blurring by atmosphere limits resolution to about 1" for light. This is called seeing (radio waves, for example, don't get blurred). ...
Hubble Space Telescope - University of Southern California
... Cassegrainian system with a 2.4 m diameter primary mirror and a 0.3 m Zerodur secondary. The effective focal length is 57.6m. The Corrective Optics Space Telescope Axial Replacement (COSTAR) package is a corrective optics package designed to optically correct the effects of the primary mirror's aber ...
... Cassegrainian system with a 2.4 m diameter primary mirror and a 0.3 m Zerodur secondary. The effective focal length is 57.6m. The Corrective Optics Space Telescope Axial Replacement (COSTAR) package is a corrective optics package designed to optically correct the effects of the primary mirror's aber ...
ppt
... few galaxies (1-2 Mpc). Even Hubble Space Telescope cannot find Cepheids beyond the Virgo cluster (16 Mpc). Beyond 1-2Mpc, Hubble used… ...
... few galaxies (1-2 Mpc). Even Hubble Space Telescope cannot find Cepheids beyond the Virgo cluster (16 Mpc). Beyond 1-2Mpc, Hubble used… ...
Famous Astronomers - Scholastic New Zealand
... of what is out there. Joint bidding nations, Australia and New Zealand, have been short-listed with South Africa to host the world’s latest space technology project, the Square Kilometre Array (SKA) Project. The SKA Project will be the world’s biggest radio telescope, consisting of over 3000 satelli ...
... of what is out there. Joint bidding nations, Australia and New Zealand, have been short-listed with South Africa to host the world’s latest space technology project, the Square Kilometre Array (SKA) Project. The SKA Project will be the world’s biggest radio telescope, consisting of over 3000 satelli ...
Galileo`s Telescope - YEAR 11 EBSS PHYSICS DETAILED STUDIES
... examined the optics of the system. The Galilean telescope works on the same principles, however, it uses a concave eyepiece, this results in an image that is upright, this is more important for terrestrial use, but not for astronomy. Though the magnification of a telescope is important, the ligh ...
... examined the optics of the system. The Galilean telescope works on the same principles, however, it uses a concave eyepiece, this results in an image that is upright, this is more important for terrestrial use, but not for astronomy. Though the magnification of a telescope is important, the ligh ...
NY 802823
... In your letter dated August 31, 1994 you requested a tariff classification ruling on calibration lamps. The calibration lamps are designed for use with the Hubble Space Telescope. The Space Telescope Image Spectrograph (STIS) is being developed for installation in the Hubble Space Telescope during i ...
... In your letter dated August 31, 1994 you requested a tariff classification ruling on calibration lamps. The calibration lamps are designed for use with the Hubble Space Telescope. The Space Telescope Image Spectrograph (STIS) is being developed for installation in the Hubble Space Telescope during i ...
optical instruments
... an instrument consisting of a combination of lenses such that the image formed by the lens or set of lenses nearest the object (called the objective) is magnified by another lens called the ocular or eyepiece. ...
... an instrument consisting of a combination of lenses such that the image formed by the lens or set of lenses nearest the object (called the objective) is magnified by another lens called the ocular or eyepiece. ...
Review Game
... 6. Identify the type of observation involved in determining whether a particular star’s brightness is steady or variable. 7. Identify the type of observation involved in determining the rotation rate of a distant star. 8. Identify the type of observation involved in determining the brightness of a s ...
... 6. Identify the type of observation involved in determining whether a particular star’s brightness is steady or variable. 7. Identify the type of observation involved in determining the rotation rate of a distant star. 8. Identify the type of observation involved in determining the brightness of a s ...
telescopes
... Next generation space telescope (successor to Hubble with a 6.5m segmented mirror ...
... Next generation space telescope (successor to Hubble with a 6.5m segmented mirror ...
Lecture9 - Physics
... about 290 nm, which are absorbed by atmospheric oxygen and nitrogen; between the optical and radio windows, due to absorption by water vapor and carbon dioxide; and at wavelengths longer than about 20 m, which are reflected back into space by ionized gases in the upper atmosphere. ...
... about 290 nm, which are absorbed by atmospheric oxygen and nitrogen; between the optical and radio windows, due to absorption by water vapor and carbon dioxide; and at wavelengths longer than about 20 m, which are reflected back into space by ionized gases in the upper atmosphere. ...
The Spitzer Space Telescope
... NASA’s Great Observatories. • It is formerly known as the Space Infrared Telescope Facility (SIRTF). • The SST was launched August 25, 2003, for a mission estimated to last from a minimum of 2.5 years to 5 or more years. ...
... NASA’s Great Observatories. • It is formerly known as the Space Infrared Telescope Facility (SIRTF). • The SST was launched August 25, 2003, for a mission estimated to last from a minimum of 2.5 years to 5 or more years. ...
4B-Astronomer-Notes
... • Ptolemy wrote a book about the motions of the planets and the stars called Almagest. • He cataloged 1,028 stars and described all the known variances of the constellations and the legends that went along with them. • He was also a renowned cartographer. He had a book with very detailed maps that C ...
... • Ptolemy wrote a book about the motions of the planets and the stars called Almagest. • He cataloged 1,028 stars and described all the known variances of the constellations and the legends that went along with them. • He was also a renowned cartographer. He had a book with very detailed maps that C ...
Astro 3303 - Cornell Astronomy
... • Advanced Camera for Surveys (ACS: optical - fixed by SM04) • Space Telescope Imaging Spectrograph (STIS: UV – fixed SM04) • Wide Field Camera 3 (WFC3: UV to optical) • Cosmic Origins Spectrograph (COS: UV) • Near Infrared Camera & Multiobject Spectrograph (NICMOS: infrared; currently not functioni ...
... • Advanced Camera for Surveys (ACS: optical - fixed by SM04) • Space Telescope Imaging Spectrograph (STIS: UV – fixed SM04) • Wide Field Camera 3 (WFC3: UV to optical) • Cosmic Origins Spectrograph (COS: UV) • Near Infrared Camera & Multiobject Spectrograph (NICMOS: infrared; currently not functioni ...
How Hubble Space Telescope failed
... these images indicated that 0.5‐wave rms wavefront spherical aberration at 547 nm existed in the OTA. Through analyzing the aberrations of the image, the doubt was centered on the primary mirrors. The testing results of the primary mirror differed between RNC and a refractive null corrector – t ...
... these images indicated that 0.5‐wave rms wavefront spherical aberration at 547 nm existed in the OTA. Through analyzing the aberrations of the image, the doubt was centered on the primary mirrors. The testing results of the primary mirror differed between RNC and a refractive null corrector – t ...
Design and Fabrication of an Optical System for a Balloon
... The mirror is machined on a Nanoform 600 DTM coupled with the FLORA II fast tool servo built at the PEC. The off-axis parabolic section is machined on axis by translating the shape to the center of rotation, tilting it and finding the best fit rotationally symmetric surface with a sag of 13 mm for t ...
... The mirror is machined on a Nanoform 600 DTM coupled with the FLORA II fast tool servo built at the PEC. The off-axis parabolic section is machined on axis by translating the shape to the center of rotation, tilting it and finding the best fit rotationally symmetric surface with a sag of 13 mm for t ...
dtu7ech03 pt 2 - Fort Thomas Independent Schools
... dangerous to life? Gamma rays. What is the main purpose of a telescope? To collect as much light as possible. Why do stars twinkle? Rapid changes in the density of the Earth’s atmosphere cause passing light starlight to change direction. What type(s) of electromagnetic radiation can telescopes curre ...
... dangerous to life? Gamma rays. What is the main purpose of a telescope? To collect as much light as possible. Why do stars twinkle? Rapid changes in the density of the Earth’s atmosphere cause passing light starlight to change direction. What type(s) of electromagnetic radiation can telescopes curre ...
prime focus
... One telescope that fits most of these types is the Hale 5-meter diameter telescope on Mount Palomar in California. Construction was completed in 1948, and it was the largest telescope in the world ...
... One telescope that fits most of these types is the Hale 5-meter diameter telescope on Mount Palomar in California. Construction was completed in 1948, and it was the largest telescope in the world ...
Telescopes
... telescopes. Radio telescopes can be used both day and night. They can also be used on cloudy days, because radio waves can pass through clouds. Over the last half-century, radio astronomers have used radio telescopes to make important discoveries. By studying the sky with both radio and optical tele ...
... telescopes. Radio telescopes can be used both day and night. They can also be used on cloudy days, because radio waves can pass through clouds. Over the last half-century, radio astronomers have used radio telescopes to make important discoveries. By studying the sky with both radio and optical tele ...
Telescopes
... Telescopes: Key Concepts (1) Telescopes use either a lens or a mirror to gather light. (2) The main purposes of a telescope are to gather light and resolve detail. (3) Radio and microwave telescopes use a reflecting dish to focus waves. (4) Telescopes in orbit avoid the distorting effects of the at ...
... Telescopes: Key Concepts (1) Telescopes use either a lens or a mirror to gather light. (2) The main purposes of a telescope are to gather light and resolve detail. (3) Radio and microwave telescopes use a reflecting dish to focus waves. (4) Telescopes in orbit avoid the distorting effects of the at ...
telescopes timeline - Institute of Astronomy
... The Hale 200’’ was the largest effective telescope in the world for almost 50 years, and is still actively used for scientific research today. With a mirror of 5.1m in diameter, it is the largest telescope at the Mount Palomar Observatory, in California. ...
... The Hale 200’’ was the largest effective telescope in the world for almost 50 years, and is still actively used for scientific research today. With a mirror of 5.1m in diameter, it is the largest telescope at the Mount Palomar Observatory, in California. ...
Topic 3
... larger telescope. Ex. Two small radio telescopes 100m apart mimic the ability of one single radio telescope with a dish diameter of 100m! Black holes are objects with such high _________________ that not even light can escape. They may be formed when the most massive of stars die and their cores col ...
... larger telescope. Ex. Two small radio telescopes 100m apart mimic the ability of one single radio telescope with a dish diameter of 100m! Black holes are objects with such high _________________ that not even light can escape. They may be formed when the most massive of stars die and their cores col ...
InStrumentS
... the brightness of 150,000 stars, allowing it to detect changes in brightness due to a passing planet. The pointing precision of the spacecraft is controlled to within a few milliarcseconds and its photometer features a focal plane array of 42 charge coupled devices (CCDs) to collect the photons of l ...
... the brightness of 150,000 stars, allowing it to detect changes in brightness due to a passing planet. The pointing precision of the spacecraft is controlled to within a few milliarcseconds and its photometer features a focal plane array of 42 charge coupled devices (CCDs) to collect the photons of l ...
Document
... 2. Resolving power (or resolution) is the smallest angular separation detectable with an instrument. It is a measure of an instrument’s ability to see detail. 3. The resolving power of a human eye is about 1 arcminute (1/60 of a degree). A 15-cm (6-inch) telescope has a maximum resolving power of 1 ...
... 2. Resolving power (or resolution) is the smallest angular separation detectable with an instrument. It is a measure of an instrument’s ability to see detail. 3. The resolving power of a human eye is about 1 arcminute (1/60 of a degree). A 15-cm (6-inch) telescope has a maximum resolving power of 1 ...
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.