WFPC2
... the path of the main optics. The other instruments are “axial”, and sit to the side of the optical path. Each instrument accesses a different part of the incoming light beam. ...
... the path of the main optics. The other instruments are “axial”, and sit to the side of the optical path. Each instrument accesses a different part of the incoming light beam. ...
An upgraded classic - Astronomy Magazine
... common in commercial reflectors nowadays. This improves the dust seal but slows down the telescope’s equalization to ambient temperature when you bring it from a warm room into the cold night. Therefore, plan your evening session accordingly and, if possible, take the scope outside an hour or more b ...
... common in commercial reflectors nowadays. This improves the dust seal but slows down the telescope’s equalization to ambient temperature when you bring it from a warm room into the cold night. Therefore, plan your evening session accordingly and, if possible, take the scope outside an hour or more b ...
W Where Did Half the Starlight in the Universe Go? Mark Devlin
... Distinguished Alumni Award Winner ...
... Distinguished Alumni Award Winner ...
The Dobson Space Telescope
... application is already visible. It is our aim to point out the strength and difficulties of this newly space optic design. To open path for a new quality in micro satellite based observation where once much heavier platforms would have been used. Since 2.4m HUBBLE could only be beaten by 8m VLT with ...
... application is already visible. It is our aim to point out the strength and difficulties of this newly space optic design. To open path for a new quality in micro satellite based observation where once much heavier platforms would have been used. Since 2.4m HUBBLE could only be beaten by 8m VLT with ...
Observing
... • We’ll meet at the observatory even if it is cloudy – If the weather is really bad (a foot of snow or something) I’ll send an email changing the meeting place, but otherwise… ...
... • We’ll meet at the observatory even if it is cloudy – If the weather is really bad (a foot of snow or something) I’ll send an email changing the meeting place, but otherwise… ...
Optics and Telescopes
... • The Earth’s atmosphere absorbs much of the radiation that arrives from space • The atmosphere is transparent chiefly in two wavelength ranges known as the optical window and the radio window • A few wavelengths in the near-infrared also reach the ground ...
... • The Earth’s atmosphere absorbs much of the radiation that arrives from space • The atmosphere is transparent chiefly in two wavelength ranges known as the optical window and the radio window • A few wavelengths in the near-infrared also reach the ground ...
Powerpoint Presentation (large file)
... • The Earth’s atmosphere absorbs much of the radiation that arrives from space • The atmosphere is transparent chiefly in two wavelength ranges known as the optical window and the radio window • A few wavelengths in the near-infrared also reach the ground ...
... • The Earth’s atmosphere absorbs much of the radiation that arrives from space • The atmosphere is transparent chiefly in two wavelength ranges known as the optical window and the radio window • A few wavelengths in the near-infrared also reach the ground ...
The Hubble Space Telescope Spherical Aberration – It All Started
... telescope must be chilled to 5-70K. This solves the visibility problem, but creates a host of other problems inturn. In order to minimize the focus shift caused by different materials (each with its own CTE) shrinking at different rates during cooldown, it is very advantageous to make the entire tel ...
... telescope must be chilled to 5-70K. This solves the visibility problem, but creates a host of other problems inturn. In order to minimize the focus shift caused by different materials (each with its own CTE) shrinking at different rates during cooldown, it is very advantageous to make the entire tel ...
Light and Telescopes - Otterbein University
... Problems with Refractors • Different colors (wavelengths) bent by different amounts – chromatic aberration • Other forms of aberration • Deform under their own weight • Absorption of light • Have two surfaces that must be optically perfect ...
... Problems with Refractors • Different colors (wavelengths) bent by different amounts – chromatic aberration • Other forms of aberration • Deform under their own weight • Absorption of light • Have two surfaces that must be optically perfect ...
Chapter 06
... C. Advantages of Radio Telescopes V. Space Astronomy A. Infrared Astronomy B. Ultraviolet Astronomy C. X-Ray Astronomy D. Gamma-Ray Telescopes E. Cosmic Rays F. The Hubble Space Telescope ...
... C. Advantages of Radio Telescopes V. Space Astronomy A. Infrared Astronomy B. Ultraviolet Astronomy C. X-Ray Astronomy D. Gamma-Ray Telescopes E. Cosmic Rays F. The Hubble Space Telescope ...
Diapositiva 1
... accompanies the formation of the open cluster of stars known as NGC 2264, the Snowflake cluster. To better understand this process, a detailed image of this region was taken in two colors of infrared light by the orbiting Spitzer Space Telescope. Bright stars from the Snowflake cluster dot the field ...
... accompanies the formation of the open cluster of stars known as NGC 2264, the Snowflake cluster. To better understand this process, a detailed image of this region was taken in two colors of infrared light by the orbiting Spitzer Space Telescope. Bright stars from the Snowflake cluster dot the field ...
Steve Holmes - KWFN October 22 2012 speaker
... km/hr, or about 10 trillion kilometres per year). For example, the nearest star (Proxima Centauri) is 4.24 light-years away, meaning that it is 42 trillion km away from us. Other stars are thousands of light-years distant, for example Eta Carinae at 7500. These huge distances help convey the vastnes ...
... km/hr, or about 10 trillion kilometres per year). For example, the nearest star (Proxima Centauri) is 4.24 light-years away, meaning that it is 42 trillion km away from us. Other stars are thousands of light-years distant, for example Eta Carinae at 7500. These huge distances help convey the vastnes ...
Astronomy_v6 - Gemini Observatory Public File Repository
... Mirrors: 10 meters each Type: Optical & Infrared First Light: 1992 & 1996 ...
... Mirrors: 10 meters each Type: Optical & Infrared First Light: 1992 & 1996 ...
space exploration technology cornell 1.2,1.3 teacher key
... 1977 The Voyager 1 and Voyager 2 are launched to Jupiter, Saturn and beyond, they are now 10 billion km away and still sending back pictures to earth 1981 The first space shuttle, Columbia, was launched by NASA 1992 Astronomers discover the first planet outside our solar system 2000 The first 3 man ...
... 1977 The Voyager 1 and Voyager 2 are launched to Jupiter, Saturn and beyond, they are now 10 billion km away and still sending back pictures to earth 1981 The first space shuttle, Columbia, was launched by NASA 1992 Astronomers discover the first planet outside our solar system 2000 The first 3 man ...
Thibou Page 1 of 6 Telescopic Analysis of Tomorrow: Advances in
... Cosmic radio waves were accidentally discovered in the 1930s. Radio telescope collectors do not have to be as smooth as other wave detection mirrors since radio wavelengths are longer. However, since the wavelength is longer, the resolution generally is not as good as optical telescopes. The largest ...
... Cosmic radio waves were accidentally discovered in the 1930s. Radio telescope collectors do not have to be as smooth as other wave detection mirrors since radio wavelengths are longer. However, since the wavelength is longer, the resolution generally is not as good as optical telescopes. The largest ...
3-1 Stars Jeopardy
... What type of waves are slightly shorter than radio waves and slightly longer than visible light? ...
... What type of waves are slightly shorter than radio waves and slightly longer than visible light? ...
1 Intro to Astronomy
... – geocentrism: all the objects in the sky revolve about the earth and are fixed to a series of nested spheres, some of which are transparent, maybe made of crystal, which spin once per day; the stars may just be holes in the otherwise opaque sphere, letting sunlight through → If you don't have today ...
... – geocentrism: all the objects in the sky revolve about the earth and are fixed to a series of nested spheres, some of which are transparent, maybe made of crystal, which spin once per day; the stars may just be holes in the otherwise opaque sphere, letting sunlight through → If you don't have today ...
Galileo`s Telescope - YEAR 11 EBSS PHYSICS DETAILED STUDIES
... known as either the objective or primary mirror. These mirrors are easier to make, and chromatic aberration is not an issue. The issue with parabolic mirrors is that the focus is not in front of the mirror. So to observe the image, Sir Isaac Newton placed an angled secondary mirror at the focus of ...
... known as either the objective or primary mirror. These mirrors are easier to make, and chromatic aberration is not an issue. The issue with parabolic mirrors is that the focus is not in front of the mirror. So to observe the image, Sir Isaac Newton placed an angled secondary mirror at the focus of ...
observations
... What makes a good telescope The bigger the diameter, the better Bigger diameter = more light gathering power Bigger diameter = less diffraction (blurring) Avoid atmospheric distortion and light pollution ...
... What makes a good telescope The bigger the diameter, the better Bigger diameter = more light gathering power Bigger diameter = less diffraction (blurring) Avoid atmospheric distortion and light pollution ...
astronomy notes: ground-based telescopes
... Light rays change direction as they pass into a different medium ...
... Light rays change direction as they pass into a different medium ...
printer-friendly version of benchmark
... atmosphere acting as a filter. Indeed, some light frequencies, such as infrared, x-ray, and gamma ray, are only observed from space (or high in Earth’s atmosphere) because these frequencies do not penetrate to Earth’s surface. Of these orbiting observatories, the Hubble Space Telescope is the most f ...
... atmosphere acting as a filter. Indeed, some light frequencies, such as infrared, x-ray, and gamma ray, are only observed from space (or high in Earth’s atmosphere) because these frequencies do not penetrate to Earth’s surface. Of these orbiting observatories, the Hubble Space Telescope is the most f ...
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.