Studying the Universe Studying the Universe
... together to collect light and deliver it to the same focal point. The Keck Telescopes, in Hawaii, shown in Figure 9, are twin telescopes that each have 36 hexagonal mirrors working together. Linking several mirrors allows more light to be collected and focused in one spot. ...
... together to collect light and deliver it to the same focal point. The Keck Telescopes, in Hawaii, shown in Figure 9, are twin telescopes that each have 36 hexagonal mirrors working together. Linking several mirrors allows more light to be collected and focused in one spot. ...
A Model of Sky Brightness in the Stratosphere
... observatory any night of the year. A balloon-borne telescope will also have the ability for daytime observing. It is believed that the daytime sky background decreases by roughly a factor of two for every 5 kilometers in altitude. If this is true, bright objects, such as Uranus and Neptune, can easi ...
... observatory any night of the year. A balloon-borne telescope will also have the ability for daytime observing. It is believed that the daytime sky background decreases by roughly a factor of two for every 5 kilometers in altitude. If this is true, bright objects, such as Uranus and Neptune, can easi ...
User Guide
... Congratulations on your purchase of high-quality Levenhuk telescope! These telescopes are designed for high-resolution viewing of astronomical objects. With their precision optics, you will be able to locate and enjoy hundreds of fascinating celestial objects, including the planets, the Moon, and a ...
... Congratulations on your purchase of high-quality Levenhuk telescope! These telescopes are designed for high-resolution viewing of astronomical objects. With their precision optics, you will be able to locate and enjoy hundreds of fascinating celestial objects, including the planets, the Moon, and a ...
Astronomical Techniques Course
... 18.) For a telescope of 50 cm the limiting magnitude (one can see thru the telescope) is 15. To see stars as faint as 26th magnitude, what sort of telescope aperture one should have? ...
... 18.) For a telescope of 50 cm the limiting magnitude (one can see thru the telescope) is 15. To see stars as faint as 26th magnitude, what sort of telescope aperture one should have? ...
Document
... Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. © 2013 Pearson Education, Inc. ...
... Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. © 2013 Pearson Education, Inc. ...
The History of Infrared Spectroscopy
... radiation is the Planck blackbody curve. Any object that is above absolute zero will emit radiation (Figure 5) and the peak wavelength depends on the temperature, with temperatures below ~2,500 K having their peak radiation in the infrared. Thus infrared spectroscopy is particularly useful for measu ...
... radiation is the Planck blackbody curve. Any object that is above absolute zero will emit radiation (Figure 5) and the peak wavelength depends on the temperature, with temperatures below ~2,500 K having their peak radiation in the infrared. Thus infrared spectroscopy is particularly useful for measu ...
Celebrating the centennial of a celestial yardstick
... a recent composite image from the Herschel and Spitzer infrared space telescopes, changed how we measure the cosmos. To learn how, see Page 4. ...
... a recent composite image from the Herschel and Spitzer infrared space telescopes, changed how we measure the cosmos. To learn how, see Page 4. ...
Astronomy Puzzle-1
... 3. An event in which Moon covers all the Sun but a bright ring around the circumference can be seen.. 4. An event that occurs when the Earth passes between the Sun and the Moon so that the Moon is wholly or partially obscured sometimes giving orange colour to the moon. 5. The position of two celesti ...
... 3. An event in which Moon covers all the Sun but a bright ring around the circumference can be seen.. 4. An event that occurs when the Earth passes between the Sun and the Moon so that the Moon is wholly or partially obscured sometimes giving orange colour to the moon. 5. The position of two celesti ...
1 Introduction - Arecibo Observatory
... the sky to be conducted with unprecedented sensitivity. In the past, use of the telescope as a survey instrument was limited by the relatively small field of view of its single-pixel receivers. ALFA, operating over the band 1225 – 1525 MHz, facilitates the making of deep surveys for a wide variety o ...
... the sky to be conducted with unprecedented sensitivity. In the past, use of the telescope as a survey instrument was limited by the relatively small field of view of its single-pixel receivers. ALFA, operating over the band 1225 – 1525 MHz, facilitates the making of deep surveys for a wide variety o ...
script (powerpoint)
... Isoplanetic Angle: Maximum angular separation (q0) between two wavefronts that have the same wavefront errors. Two wavefronts separated by less than q0 should have good adaptive optics ...
... Isoplanetic Angle: Maximum angular separation (q0) between two wavefronts that have the same wavefront errors. Two wavefronts separated by less than q0 should have good adaptive optics ...
Polarization & Holography
... – atmospheric transparency at wavelength of interest – atmospheric turbulence – sky brightness – accessibility Imaging Science Fundamentals ...
... – atmospheric transparency at wavelength of interest – atmospheric turbulence – sky brightness – accessibility Imaging Science Fundamentals ...
class slides for Chapter 3
... Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. © 2013 Pearson Education, Inc. ...
... Much can be learned from observing the same astronomical object at many wavelengths. Here, the Milky Way. © 2013 Pearson Education, Inc. ...
Use of Reflected Light with Asteroid Light Curves
... across time and run Fourier analyses on the curves. A. Choosing an Asteroid The Asteroid 51 Nemausa was initially chosen due to its optimal right ascension (RA) and declination (Dec). The telescope could view anything over 20 degrees above the horizon. Nemausa was up all night, maximizing viewing po ...
... across time and run Fourier analyses on the curves. A. Choosing an Asteroid The Asteroid 51 Nemausa was initially chosen due to its optimal right ascension (RA) and declination (Dec). The telescope could view anything over 20 degrees above the horizon. Nemausa was up all night, maximizing viewing po ...
GLAST Proposal Review
... • Waveshifting fibers - used in GLAST LAT Balloon Flight Engineering Model (BFEM). Waveshifting bars used by HEXTE on RXTE (same material in a different geometry) • Photomultiplier tubes - used in all previous gamma-ray telescopes. HEXTE/RXTE used a commercial version of the same tube we are using ( ...
... • Waveshifting fibers - used in GLAST LAT Balloon Flight Engineering Model (BFEM). Waveshifting bars used by HEXTE on RXTE (same material in a different geometry) • Photomultiplier tubes - used in all previous gamma-ray telescopes. HEXTE/RXTE used a commercial version of the same tube we are using ( ...
Learning goals for Astronomy`s Final 2013
... 58. Interpret star color and connect that to the star’s surface temperature 59. Describe what is an H-R diagram 60. Construct H-R diagrams using the concept of color and star’s temperature 61. Describe the different star groupings in terms of H-R diagrams: Main sequence, giants and super giants, whi ...
... 58. Interpret star color and connect that to the star’s surface temperature 59. Describe what is an H-R diagram 60. Construct H-R diagrams using the concept of color and star’s temperature 61. Describe the different star groupings in terms of H-R diagrams: Main sequence, giants and super giants, whi ...
Polaris Series Manual
... The tripod is the basic support for your telescope. Its height may be adjusted so that you can view comfortably. Note: Number in brackets, e.g., (3), refer to Fig. 1A and 1B unless noted otherwise. The tripod is shipped from the factory pre-assembled and needs only the mount and accessory tray attac ...
... The tripod is the basic support for your telescope. Its height may be adjusted so that you can view comfortably. Note: Number in brackets, e.g., (3), refer to Fig. 1A and 1B unless noted otherwise. The tripod is shipped from the factory pre-assembled and needs only the mount and accessory tray attac ...
25 Years of the Hubble Space Telescope - Speaker
... field into the upper atmosphere. The electrons excite atmospheric gases, causing them to glow. The electric-blue image of Jupiter’s northern aurora shows the main oval of the aurora, which is centered on the magnetic north pole, plus more diffuse emissions inside the polar cap. Though the aurora res ...
... field into the upper atmosphere. The electrons excite atmospheric gases, causing them to glow. The electric-blue image of Jupiter’s northern aurora shows the main oval of the aurora, which is centered on the magnetic north pole, plus more diffuse emissions inside the polar cap. Though the aurora res ...
The Mystery of Gamma Ray Bursts
... A GRB afterglow (980425) was first linked to a supernova (1998bw) in 1998. Then in 2003, GRB 030329 had an optical and X-ray spectrograph almost identical to the supernova that created it, sealing the case for a causal relationship between supernovae and long GRBs (Imagineweb). Short GRBs have minim ...
... A GRB afterglow (980425) was first linked to a supernova (1998bw) in 1998. Then in 2003, GRB 030329 had an optical and X-ray spectrograph almost identical to the supernova that created it, sealing the case for a causal relationship between supernovae and long GRBs (Imagineweb). Short GRBs have minim ...
document
... Example: overall telescope 43 nm RMS WFE — gives Strehl= 0.93 at 1000 nm — gives Strehl=0.90 at 830 nm — gives Strehl=0.83 at 633 nm Example: overall telescope 50 nm RMS WFE — gives Strehl=0.91 at 1000 nm — gives Strehl=0.87 at 830 nm — gives Strehl=0.77 at 633 nm WFE to be budgeted among pri, sec, ...
... Example: overall telescope 43 nm RMS WFE — gives Strehl= 0.93 at 1000 nm — gives Strehl=0.90 at 830 nm — gives Strehl=0.83 at 633 nm Example: overall telescope 50 nm RMS WFE — gives Strehl=0.91 at 1000 nm — gives Strehl=0.87 at 830 nm — gives Strehl=0.77 at 633 nm WFE to be budgeted among pri, sec, ...
Wonderworld of Space
... Due to the glare of the Sun comets are usually visible only at sunrise or sunset. Many are discovered by amateur astronomers. Comets are invisible except when they are near the Sun. Most have orbits which take them far beyond the orbit of Pluto; these are seen once and then disappear for millennia. ...
... Due to the glare of the Sun comets are usually visible only at sunrise or sunset. Many are discovered by amateur astronomers. Comets are invisible except when they are near the Sun. Most have orbits which take them far beyond the orbit of Pluto; these are seen once and then disappear for millennia. ...
TELESCOPE CONCEPTS SUPER VIEWS OF SPACE
... wavelengths, telescopes must be put into orbit above the Earth’s atmosphere. The Earth’s atmosphere does not block all wavelengths, however. Visible light, some infrared light, and radio waves can be observed from Earth, but not without interference. The atmosphere bends these waves, causing images ...
... wavelengths, telescopes must be put into orbit above the Earth’s atmosphere. The Earth’s atmosphere does not block all wavelengths, however. Visible light, some infrared light, and radio waves can be observed from Earth, but not without interference. The atmosphere bends these waves, causing images ...
supplemental educational materials PDF
... Vocabulary words Astronomer A scientist who studies the universe and the celestial bodies residing in it, including their composition, history, location, and motion. Many of the scientists at the Space Telescope Science Institute are astronomers. Astronomers from all over the world use the Hubble Sp ...
... Vocabulary words Astronomer A scientist who studies the universe and the celestial bodies residing in it, including their composition, history, location, and motion. Many of the scientists at the Space Telescope Science Institute are astronomers. Astronomers from all over the world use the Hubble Sp ...
James Webb Space Telescope
The James Webb Space Telescope (JWST), previously known as Next Generation Space Telescope (NGST), is a space observatory under construction and scheduled to launch in October 2018. The JWST will offer unprecedented resolution and sensitivity from long-wavelength visible to the mid-infrared, and is a successor instrument to the Hubble Space Telescope and the Spitzer Space Telescope. The telescope features a segmented 6.5-meter (21 ft) diameter primary mirror and will be located near the Earth–Sun L2 point. A large sunshield will keep its mirror and four science instruments below 50 K (−220 °C; −370 °F).JWST's capabilities will enable a broad range of investigations across the fields of astronomy and cosmology. One particular goal involves observing some of the most distant objects in the Universe, beyond the reach of current ground and space based instruments. This includes the very first stars, the epoch of reionization, and the formation of the first galaxies. Another goal is understanding the formation of stars and planets. This will include imaging molecular clouds and star-forming clusters, studying the debris disks around stars, direct imaging of planets, and spectroscopic examination of planetary transits.In gestation since 1996, the project represents an international collaboration of about 17 countries led by NASA, and with significant contributions from the European Space Agency and the Canadian Space Agency. It is named after James E. Webb, the second administrator of NASA, who played an integral role in the Apollo program.The JWST has a history of major cost overruns and delays. The first realistic budget estimates were that the observatory would cost $1.6 billion and launch in 2011. NASA has now scheduled the telescope for a 2018 launch. In 2011, the United States House of Representatives voted to terminate funding, after about $3 billion had been spent and 75 percent of its hardware was in production. Funding was restored in compromise legislation with the US Senate, and spending on the program was capped at $8 billion. As of December 2014, the telescope remained on schedule and within budget, but at risk of further delays.