PHYS_3380_100714_bw - The University of Texas at Dallas
... • the largest VLBI array that operates all year round as both an astronomical and geodesy instrument. Global VLBI • Combination of the EVN and VLBA Space Very Long Baseline Interferometry (SVLBI) •dedicated VLBI placed in Earth orbit to provide greatly extended baselines. •HALCA, an 8 meter radio te ...
... • the largest VLBI array that operates all year round as both an astronomical and geodesy instrument. Global VLBI • Combination of the EVN and VLBA Space Very Long Baseline Interferometry (SVLBI) •dedicated VLBI placed in Earth orbit to provide greatly extended baselines. •HALCA, an 8 meter radio te ...
Instruction Manual
... Precise collimation, or alignment, of your telescope’s optical system is essential for good performance. All Meade telescopes are accurately collimated at the factory prior to shipment. You may want to collimate after the telescope has been shipped or if it has endured rough handling or a bumpy car ...
... Precise collimation, or alignment, of your telescope’s optical system is essential for good performance. All Meade telescopes are accurately collimated at the factory prior to shipment. You may want to collimate after the telescope has been shipped or if it has endured rough handling or a bumpy car ...
114EQ-AR
... who is one of the first astronomers to use a telescope, discovered four of the moons of Jupiter with a telescope about the same size as yours (and his didn’t even focus very well!). OBSERVING Observe during the daytime: Try out your telescope during the daytime at first. It is easier to learn how it ...
... who is one of the first astronomers to use a telescope, discovered four of the moons of Jupiter with a telescope about the same size as yours (and his didn’t even focus very well!). OBSERVING Observe during the daytime: Try out your telescope during the daytime at first. It is easier to learn how it ...
Resume
... subarray readout capability for fast readout, gain variations, fringes, cosmic ray hit events, enhanced dynamic range, etc. of the instrument. I also did extensive optics study on symmetric out-off focus measurements and wavefront modelling to improve and troubleshoot the star profile structure. Thi ...
... subarray readout capability for fast readout, gain variations, fringes, cosmic ray hit events, enhanced dynamic range, etc. of the instrument. I also did extensive optics study on symmetric out-off focus measurements and wavefront modelling to improve and troubleshoot the star profile structure. Thi ...
an all-sky extrasolar planet survey with multiple object, dispersed
... ALL-SKY SURVEY WITH ASEPS ASEPS visible-wavelength survey has the sensitivity to detect giant planets at Jupiter-like distances (5 AU) from parent stars with V < 11. The nearinfrared survey will focus on infrared-bright M stars and may lead to discoveries of super-Earth-mass planets (∼10 Earth masse ...
... ALL-SKY SURVEY WITH ASEPS ASEPS visible-wavelength survey has the sensitivity to detect giant planets at Jupiter-like distances (5 AU) from parent stars with V < 11. The nearinfrared survey will focus on infrared-bright M stars and may lead to discoveries of super-Earth-mass planets (∼10 Earth masse ...
... Comet ISON dies in Sun’s fiery embrace. The comet raises hopes, dashes them, raises them again and then wafts off into history as a “coulda been”. Proving once again- if such proof is needed- that comets are the contrariest of creatures, Comet ISON made its dash into the glare of the Sun- seemed to h ...
114EQ-AR
... objects and how those objects move across the sky is the key to enjoying the hobby of astronomy. Most amateur astronomers practice "star-hopping" to locate celestial objects. They use star charts or astronomical software to identify bright ...
... objects and how those objects move across the sky is the key to enjoying the hobby of astronomy. Most amateur astronomers practice "star-hopping" to locate celestial objects. They use star charts or astronomical software to identify bright ...
Collaborative Research Projects for Amateur Astronomers
... Robotic Observatory between 24 September 1998 and 11 June 1999. Observations were scheduled every month within one week of new moon. A total of 6,148 images were obtained, of which 2,718 were classified as category A (visual detection magnitude 16.5 or brighter in a 100 pixel trail). Seeing cond ...
... Robotic Observatory between 24 September 1998 and 11 June 1999. Observations were scheduled every month within one week of new moon. A total of 6,148 images were obtained, of which 2,718 were classified as category A (visual detection magnitude 16.5 or brighter in a 100 pixel trail). Seeing cond ...
Upcoming Events
... In visible light, these clouds appear predominantly as dark patches, obscuring and reddening the light of background stars. In the infrared, though, the gas glows brilliantly as it forms new stars inside. Combined near-infrared and visible light observations, such as those taken by the Hubble Space ...
... In visible light, these clouds appear predominantly as dark patches, obscuring and reddening the light of background stars. In the infrared, though, the gas glows brilliantly as it forms new stars inside. Combined near-infrared and visible light observations, such as those taken by the Hubble Space ...
PPT 15MB - HubbleSOURCE
... Some Spitzer/IRAC Galactic Center Results Largest, most sensitive, highest resolution (1-2’’) map of the GC at mid-infrared wavelengths We see spectacular, complex structure in glowing dust emission, from compact globules to long, stringy filaments Over one million stars detected in the surve ...
... Some Spitzer/IRAC Galactic Center Results Largest, most sensitive, highest resolution (1-2’’) map of the GC at mid-infrared wavelengths We see spectacular, complex structure in glowing dust emission, from compact globules to long, stringy filaments Over one million stars detected in the surve ...
July 2013 - Skyscrapers, Inc.
... We own a number of telescopes of different sizes, sophistication, and quality which are available for loan to members. If you do not own a telescope but wish you had access to own sometimes, or if you do own a scope but would like to try out other types and sizes, then you should converse with one o ...
... We own a number of telescopes of different sizes, sophistication, and quality which are available for loan to members. If you do not own a telescope but wish you had access to own sometimes, or if you do own a scope but would like to try out other types and sizes, then you should converse with one o ...
July - Rose City Astronomers
... a registration form (no fees involved) and then waiting a few days for your observer initials to be emailed to you: Therefore, for the most part, the Astrophysicist's are pretty much dependent upon world wide amateur contributors to report the necessary data to the 94 year old AAVSO organization to ...
... a registration form (no fees involved) and then waiting a few days for your observer initials to be emailed to you: Therefore, for the most part, the Astrophysicist's are pretty much dependent upon world wide amateur contributors to report the necessary data to the 94 year old AAVSO organization to ...
April 2011 - Skyscrapers, Inc.
... himself. The light-colored bands and zones in Saturn’s cloud tops are much less prominent than those of Jupiter. (Very little cloud detail can be seen in small telescopes.) However, bright “spots” do develop from time to time. As I write this column at the end of February, a very large bright featur ...
... himself. The light-colored bands and zones in Saturn’s cloud tops are much less prominent than those of Jupiter. (Very little cloud detail can be seen in small telescopes.) However, bright “spots” do develop from time to time. As I write this column at the end of February, a very large bright featur ...
hires version 12.5MB - Department of Physics and Astronomy
... In France, Arago immediately foretold the future of photography in astronomy: It would be used to preserve images, of course, and also for photometry (the measurement of brightness) and spectroscopy. This last proposal was especially prescient, as it was still two decades before Kirchhoff and Bunsen ...
... In France, Arago immediately foretold the future of photography in astronomy: It would be used to preserve images, of course, and also for photometry (the measurement of brightness) and spectroscopy. This last proposal was especially prescient, as it was still two decades before Kirchhoff and Bunsen ...
Celestron Manual
... Take time to read through this manual before embarking on your journey through the Universe. It may take a few observing sessions to become familiar with your telescope, so you should keep this manual handy until you have fully mastered your telescope’s operation. The manual gives detailed informati ...
... Take time to read through this manual before embarking on your journey through the Universe. It may take a few observing sessions to become familiar with your telescope, so you should keep this manual handy until you have fully mastered your telescope’s operation. The manual gives detailed informati ...
Eye in the sky - Academy of Science of South Africa
... astronomers call the ‘seeing’. If this blurring is corrected for (and many large telescopes are starting to have this capability, called adaptive optics), the distance to distinguish those headlights would be close to 10 000 km for SALT. So far the discussion has been centred on images a telescope t ...
... astronomers call the ‘seeing’. If this blurring is corrected for (and many large telescopes are starting to have this capability, called adaptive optics), the distance to distinguish those headlights would be close to 10 000 km for SALT. So far the discussion has been centred on images a telescope t ...
AAO Techniques Workshop (April 2001) 12 Mbytes
... The WFPC1 was designed to be the main imaging camera on the HST. It took images over the wavelength range 300 to 1000 nm with four CCD detectors. Over time the UV sensitivity dropped off due to the build-up on contaminants on the CCDs. It could operate in two focal modes – f/12.9 or Wide Field Camer ...
... The WFPC1 was designed to be the main imaging camera on the HST. It took images over the wavelength range 300 to 1000 nm with four CCD detectors. Over time the UV sensitivity dropped off due to the build-up on contaminants on the CCDs. It could operate in two focal modes – f/12.9 or Wide Field Camer ...
20225_TerraStar60 InstrctnMnl 042111.qxd
... Galilean moons of Jupiter (Fig. 6), plus a few others, but how many moons does Jupiter actually have? No one knows for sure! Nor are we sure how many Saturn has either. At last count, Jupiter had over 60 moons, and held a small lead over Saturn. Most of these moons are very small and can only be see ...
... Galilean moons of Jupiter (Fig. 6), plus a few others, but how many moons does Jupiter actually have? No one knows for sure! Nor are we sure how many Saturn has either. At last count, Jupiter had over 60 moons, and held a small lead over Saturn. Most of these moons are very small and can only be see ...
User Guide
... expands the cone of the focused light before it reaches the focal point, so that the telescope's focal length appears longer to the eyepiece. In addition to increasing magnification, the benefits of using a Barlow lens include improved eye relief, and reduced spherical aberration of the eyepiece. Fo ...
... expands the cone of the focused light before it reaches the focal point, so that the telescope's focal length appears longer to the eyepiece. In addition to increasing magnification, the benefits of using a Barlow lens include improved eye relief, and reduced spherical aberration of the eyepiece. Fo ...
antarctic and associated exploration book collection
... Part 2: Our Star Neighbours & The Limits of Parallax Galileo embraced the 15th and 16th century ideas of Nicholas of Cusa and Leonard Digges, that stars were distributed through an infinite space, when he observed through his telescope many stars too faint to be seen by the naked eye. As for determi ...
... Part 2: Our Star Neighbours & The Limits of Parallax Galileo embraced the 15th and 16th century ideas of Nicholas of Cusa and Leonard Digges, that stars were distributed through an infinite space, when he observed through his telescope many stars too faint to be seen by the naked eye. As for determi ...
Small Wonders: Canes Venatici
... Canes Venatici is a somewhat small constellation, and may be difficult to find. Flanked on by both Ursa Major and Bootes, Canes is located in a somewhat barren section of the night sky. Canes (whose name means The Hunting Dogs) has been seen as Bootes pets for at least several hundred years, but the ...
... Canes Venatici is a somewhat small constellation, and may be difficult to find. Flanked on by both Ursa Major and Bootes, Canes is located in a somewhat barren section of the night sky. Canes (whose name means The Hunting Dogs) has been seen as Bootes pets for at least several hundred years, but the ...
orion® starBlast™ - Spectrum Scientifics
... Tracking Celestial Objects The Earth is constantly rotating about its polar axis, completing one full rotation every 24 hours; this is what defines a “day”. We do not feel the Earth rotating, but we see it at night from the apparent movement of stars from east to west. When you observe any astronomi ...
... Tracking Celestial Objects The Earth is constantly rotating about its polar axis, completing one full rotation every 24 hours; this is what defines a “day”. We do not feel the Earth rotating, but we see it at night from the apparent movement of stars from east to west. When you observe any astronomi ...
Studying the Universe Studying the Universe
... in Figure 8, reflecting telescopes use a second mirror in front of the focal point to reflect the light through the eyepiece. One advantage of reflecting telescopes over refracting telescopes is that mirrors can be very large, which allows them to gather more light than refracting telescope lenses d ...
... in Figure 8, reflecting telescopes use a second mirror in front of the focal point to reflect the light through the eyepiece. One advantage of reflecting telescopes over refracting telescopes is that mirrors can be very large, which allows them to gather more light than refracting telescope lenses d ...
Activity 1 - Galaxies
... Telescopes can be designed to detect any type of electromagnetic wave. This advance in technology has allowed astronomers to generate images of objects in space from the visible light, infra-red, radio waves, X-rays and any other electromagnetic waves they emit. Astronomers have learnt a great deal ...
... Telescopes can be designed to detect any type of electromagnetic wave. This advance in technology has allowed astronomers to generate images of objects in space from the visible light, infra-red, radio waves, X-rays and any other electromagnetic waves they emit. Astronomers have learnt a great deal ...
History of the telescope
The earliest known working telescopes appeared in 1608 and are credited to Hans Lippershey. Among many others who claimed to have made the discovery were Zacharias Janssen, a spectacle-maker in Middelburg, and Jacob Metius of Alkmaar. The design of these early refracting telescopes consisted of a convex objective lens and a concave eyepiece. Galileo used this design the following year. In 1611, Johannes Kepler described how a telescope could be made with a convex objective lens and a convex eyepiece lens and by 1655 astronomers such as Christiaan Huygens were building powerful but unwieldy Keplerian telescopes with compound eyepieces. Hans Lippershey is the earliest person documented to have applied for a patent for the device.Isaac Newton is credited with building the first ""practical"" reflector in 1668 with a design that incorporated a small flat diagonal mirror to reflect the light to an eyepiece mounted on the side of the telescope. Laurent Cassegrain in 1672 described the design of a reflector with a small convex secondary mirror to reflect light through a central hole in the main mirror.The achromatic lens, which greatly reduced color aberrations in objective lenses and allowed for shorter and more functional telescopes, first appeared in a 1733 telescope made by Chester Moore Hall, who did not publicize it. John Dollond learned of Hall's invention and began producing telescopes using it in commercial quantities, starting in 1758.Important developments in reflecting telescopes were John Hadley's production of larger paraboloidal mirrors in 1721; the process of silvering glass mirrors introduced by Léon Foucault in 1857; and the adoption of long lasting aluminized coatings on reflector mirrors in 1932. Almost all of the large optical research telescopes used today are reflectors.The era of radio telescopes (along with radio astronomy) was born with Karl Guthe Jansky's serendipitous discovery of an astronomical radio source in 1931. Many types of telescopes were developed in the 20th century for a wide range of wavelengths from radio to gamma-rays.