Document
... by clouds of gas and interstellar dust – where galaxies, stars and planetary systems are born – with wavelengths of a millimeter or less. “Astronomers can use it to study the chemical and physical conditions of these clouds. Often such regions are dark and obscured in visible light, but they shine b ...
... by clouds of gas and interstellar dust – where galaxies, stars and planetary systems are born – with wavelengths of a millimeter or less. “Astronomers can use it to study the chemical and physical conditions of these clouds. Often such regions are dark and obscured in visible light, but they shine b ...
Activities, In the Footsteps of Galileo
... it, the innermost (Io) taking less than two days to do so and the outermost (Callisto) taking two weeks. Activity: Observe and draw Jupiter and its four moons at about the same time on at least three evenings over one week. Your drawings should have Jupiter centered with its moons proportionally pla ...
... it, the innermost (Io) taking less than two days to do so and the outermost (Callisto) taking two weeks. Activity: Observe and draw Jupiter and its four moons at about the same time on at least three evenings over one week. Your drawings should have Jupiter centered with its moons proportionally pla ...
Astrophysics notes - School
... The scale we use to measure magnitude is based on that created by the ancient Greeks which ran from 1 to 6. On the ancient Greek scale 1 was the brightest star they could view and 6 was the dimmest. The problem with this scale is that with the creation of optical aids (such as the telescope) we can ...
... The scale we use to measure magnitude is based on that created by the ancient Greeks which ran from 1 to 6. On the ancient Greek scale 1 was the brightest star they could view and 6 was the dimmest. The problem with this scale is that with the creation of optical aids (such as the telescope) we can ...
Reflecting telescopes - School
... colours of light are refracted by different amounts (blue more than red) this is known as chromatic aberration and can results with coloured fringes appearing around objects. The advantage of a refracting telescope is that it is a sealed unit and therefore there is no need for cleaning. Refracting t ...
... colours of light are refracted by different amounts (blue more than red) this is known as chromatic aberration and can results with coloured fringes appearing around objects. The advantage of a refracting telescope is that it is a sealed unit and therefore there is no need for cleaning. Refracting t ...
Basic Properties of Light
... [~/d(radians)=206265/d(arcsec)] x1.22 is resolution for a 10 cm telescope at =5000Å, = 1 arcsec • interference[max at dsin = m] gives location of lines in spectrograph - for a grating with 12000 slits/inch, d=21,000Å ...
... [~/d(radians)=206265/d(arcsec)] x1.22 is resolution for a 10 cm telescope at =5000Å, = 1 arcsec • interference[max at dsin = m] gives location of lines in spectrograph - for a grating with 12000 slits/inch, d=21,000Å ...
Lec 11 Galileo I Tel..
... Hans Lipperhey, 1608 telescope: illiterate spectacle-maker *** Galileo, Pictures, and the Court *** Verbal portrait describes changes over time (Sun & Moon) Text carries the real message E.g.: ‘cavity’ of moon exaggerated = moon like earth valleys The setting of the court: do not mix mechani ...
... Hans Lipperhey, 1608 telescope: illiterate spectacle-maker *** Galileo, Pictures, and the Court *** Verbal portrait describes changes over time (Sun & Moon) Text carries the real message E.g.: ‘cavity’ of moon exaggerated = moon like earth valleys The setting of the court: do not mix mechani ...
“extras” available for your scope?
... If your telescope and mount sit on a tripod (rather than a permanent pier), do yourself a favor and purchase a set of Celestron anti-vibration pads. The dampdown time (the time it takes an image to stabilize after the scope is touched) is reduced greatly when the pads are in place. ...
... If your telescope and mount sit on a tripod (rather than a permanent pier), do yourself a favor and purchase a set of Celestron anti-vibration pads. The dampdown time (the time it takes an image to stabilize after the scope is touched) is reduced greatly when the pads are in place. ...
Document
... Disadvantages Generally small apertures, 3 to 5 inches Tough to see small and faint deep sky objects (distant galaxies and nebulae) Heavy, long and bulky Can be expensive per inch of aperture ...
... Disadvantages Generally small apertures, 3 to 5 inches Tough to see small and faint deep sky objects (distant galaxies and nebulae) Heavy, long and bulky Can be expensive per inch of aperture ...
Jul - Wadhurst Astronomical Society
... Another of Phil’s useful tips was to consider where the telescope will move during an observing session. After time, it is possible that the telescope may reach a position where it can begin to catch on part of the mount, then what is called a ‘Meridian Flip’ is used where the mount is swung round, ...
... Another of Phil’s useful tips was to consider where the telescope will move during an observing session. After time, it is possible that the telescope may reach a position where it can begin to catch on part of the mount, then what is called a ‘Meridian Flip’ is used where the mount is swung round, ...
Studying Variable stars using Small Telescopes Observational
... 1. Convenient access to a telescope. 2. For sufficiently bright stars, small telescopes achieve same photometric accuracy as that of large telescopes. 3. With advanced increasing sophistications in optics and electronics it is possible for smaller telescopes to do what larger telescopes could do in ...
... 1. Convenient access to a telescope. 2. For sufficiently bright stars, small telescopes achieve same photometric accuracy as that of large telescopes. 3. With advanced increasing sophistications in optics and electronics it is possible for smaller telescopes to do what larger telescopes could do in ...
February - Fort Worth Astronomical Society
... Saturn was the Roman god of agriculture and the Greek god Cronus, who was father of Zeus (Jupiter). "Saturday" comes from, you guessed it Saturn! Although Saturn has been known about since man first looked up into the night sky, it was Galileo who first saw it with a telescope in 1610. It was not un ...
... Saturn was the Roman god of agriculture and the Greek god Cronus, who was father of Zeus (Jupiter). "Saturday" comes from, you guessed it Saturn! Although Saturn has been known about since man first looked up into the night sky, it was Galileo who first saw it with a telescope in 1610. It was not un ...
TELESCOPE SIMULATION
... preference>spectral range. Change range to 4000-7000. Start the spectrometer. Run until signal/noise is > 100. 7. Save your spectra. Remember name saved under. Go to window that has tools in menu. Go to tools and select spectrum measuring tool. In the window that comes up. Go to file >data>load to l ...
... preference>spectral range. Change range to 4000-7000. Start the spectrometer. Run until signal/noise is > 100. 7. Save your spectra. Remember name saved under. Go to window that has tools in menu. Go to tools and select spectrum measuring tool. In the window that comes up. Go to file >data>load to l ...
How to find ET with infrared light
... spans about 100 milliarcseconds.) The brighter exoplanet targets are those that are closer to their host stars or larger in diameter because they reflect more light. Thus, the brightest and most detectable civilizations in our team’s census will live on planets orbiting cooler suns that are nearby. ...
... spans about 100 milliarcseconds.) The brighter exoplanet targets are those that are closer to their host stars or larger in diameter because they reflect more light. Thus, the brightest and most detectable civilizations in our team’s census will live on planets orbiting cooler suns that are nearby. ...
The search for extraterrestrial intelligence has mostly revolved
... spans about 100 milliarcseconds.) The brighter exoplanet targets are those that are closer to their host stars or larger in diameter because they reflect more light. Thus, the brightest and most detectable civilizations in our team’s census will live on planets orbiting cooler suns that are nearby. ...
... spans about 100 milliarcseconds.) The brighter exoplanet targets are those that are closer to their host stars or larger in diameter because they reflect more light. Thus, the brightest and most detectable civilizations in our team’s census will live on planets orbiting cooler suns that are nearby. ...
Field of View of a Small Telescope Observational
... must be loosened to move the scope (one for each axis); retighten them once you are pointing where you want. Note the small finder scope attached to main tube. This has a much larger field of view than the main scope and is aligned with it, making it easier to center in on objects. Try looking aroun ...
... must be loosened to move the scope (one for each axis); retighten them once you are pointing where you want. Note the small finder scope attached to main tube. This has a much larger field of view than the main scope and is aligned with it, making it easier to center in on objects. Try looking aroun ...
February 2010 Vol 21 No 2 - Cape Cod Astronomical Society
... an iPod Touch), and jockeyed around verifying putative neighboring stars and finally found… well not much. Was that fun? Well it will be next time when we run the exercise with a little more precision. The fun is in the chase. Wait till next time! The Great Orion Nebula was spectacular in the 16”. N ...
... an iPod Touch), and jockeyed around verifying putative neighboring stars and finally found… well not much. Was that fun? Well it will be next time when we run the exercise with a little more precision. The fun is in the chase. Wait till next time! The Great Orion Nebula was spectacular in the 16”. N ...
Background Science - Faulkes Telescope Project
... Credit: NASA/CXC/NCSU/S Reynolds et al; VLA; NASA/ESA/ R Sankrit and W Blair ...
... Credit: NASA/CXC/NCSU/S Reynolds et al; VLA; NASA/ESA/ R Sankrit and W Blair ...
Astronomical Observations (Fall 2004) Final Exam
... (a) What is the flux ratio between the two stars fA/fB? (b) It turns out that star A itself later is resolved into a close binary with a flux ratio of 2. What is the respective apparent magnitude of A 1 and A 2? (Note: log 2≈0.30; log 3≈0.48) (10 pts) ...
... (a) What is the flux ratio between the two stars fA/fB? (b) It turns out that star A itself later is resolved into a close binary with a flux ratio of 2. What is the respective apparent magnitude of A 1 and A 2? (Note: log 2≈0.30; log 3≈0.48) (10 pts) ...
Galileo`s telescope - Exhibits on-line
... Pierre Borel, De vero telescopii inventore, The Hague, 1656. A spectacles-maker in Middelburg, southwestern Holland, Sacharias Janssen is indicated by Pierre Borel as the true inventor of the telescope. 7. Pierre Borel, De vero telescopii inventore, The Hague, 1656 - frontispiece. 8. Johannes Collar ...
... Pierre Borel, De vero telescopii inventore, The Hague, 1656. A spectacles-maker in Middelburg, southwestern Holland, Sacharias Janssen is indicated by Pierre Borel as the true inventor of the telescope. 7. Pierre Borel, De vero telescopii inventore, The Hague, 1656 - frontispiece. 8. Johannes Collar ...
Jets from Black Holes in Quasars
... Rossi X-ray Timing Explorer, XMM-Newton, & Swift (X-rays) Chandra (X-rays), Hubble (visible light), Spitzer (infrared light) University of Michigan Radio Observatory ...
... Rossi X-ray Timing Explorer, XMM-Newton, & Swift (X-rays) Chandra (X-rays), Hubble (visible light), Spitzer (infrared light) University of Michigan Radio Observatory ...
Goal: To understand how Galileo and Newton
... • Created a far superior version of the telescope (so superior it is the most widely used by professionals 300 years later). • This is a reflecting telescope. • Previous telescopes were refracting (refract light through a lens). This creates “chromatic abrasion”. ...
... • Created a far superior version of the telescope (so superior it is the most widely used by professionals 300 years later). • This is a reflecting telescope. • Previous telescopes were refracting (refract light through a lens). This creates “chromatic abrasion”. ...
Orion StarBlast 4.5” Telescope STAR Program
... in Cygnus, is a favorite and is sometimes referred to as the Scout Star because it is blue and gold like the Cub Scouts colors. Defocusing a star slightly can help bring out its color. Deep Sky Objects: Under dark skies, you can see lots of fascinating deep sky objects, including nebulae, star clust ...
... in Cygnus, is a favorite and is sometimes referred to as the Scout Star because it is blue and gold like the Cub Scouts colors. Defocusing a star slightly can help bring out its color. Deep Sky Objects: Under dark skies, you can see lots of fascinating deep sky objects, including nebulae, star clust ...
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.