Series Telescopes INSTRUCTION MANUAL
... A Newtonian reflector uses a single concave mirror as its primary. Light enters the tube traveling to the mirror at the back end. There light is bent forward in the tube to a single point, its focal point. Since putting your head in front of the telescope to look at the image with an eyepiece would ...
... A Newtonian reflector uses a single concave mirror as its primary. Light enters the tube traveling to the mirror at the back end. There light is bent forward in the tube to a single point, its focal point. Since putting your head in front of the telescope to look at the image with an eyepiece would ...
MilkyWay
... History of Galactic (& Extragalactic) Astronomy In 1920, the National Academy of Science hosted the Great Debate concerning the nature of the Spiral Nebulae: were they island universes outside of the Milky Way? •Shapley had MW size too big and therefore argued “NO”, they are part of the Milky Way • ...
... History of Galactic (& Extragalactic) Astronomy In 1920, the National Academy of Science hosted the Great Debate concerning the nature of the Spiral Nebulae: were they island universes outside of the Milky Way? •Shapley had MW size too big and therefore argued “NO”, they are part of the Milky Way • ...
The Milky Way Galaxy
... History of Galactic (& Extragalactic) Astronomy In 1920, the National Academy of Science hosted the Great Debate concerning the nature of the Spiral Nebulae: were they island universes outside of the Milky Way? •Shapley had MW size too big and therefore argued “NO”, they are part of the Milky Way • ...
... History of Galactic (& Extragalactic) Astronomy In 1920, the National Academy of Science hosted the Great Debate concerning the nature of the Spiral Nebulae: were they island universes outside of the Milky Way? •Shapley had MW size too big and therefore argued “NO”, they are part of the Milky Way • ...
The Lyman-alpha telescope of the Extreme Ultraviolet Imager
... The temperature distribution of the filter will be modeled and thermal-vacuum cycling within the expected temperature range will be performed. Also, since the front filter is the first optical surface that is exposed to the full solar flux, it must be qualified to survive the environmental condition ...
... The temperature distribution of the filter will be modeled and thermal-vacuum cycling within the expected temperature range will be performed. Also, since the front filter is the first optical surface that is exposed to the full solar flux, it must be qualified to survive the environmental condition ...
ph507-16-4form
... Massive Stars & Clusters: Massive stars should not form: hydrogen burning begins while accreting: radiation pressure should resist the infall. Accretion must be high and through a disk: to suffocate the feedback. Massive stars create hot molecular cores, masers, compact/extended H II ...
... Massive Stars & Clusters: Massive stars should not form: hydrogen burning begins while accreting: radiation pressure should resist the infall. Accretion must be high and through a disk: to suffocate the feedback. Massive stars create hot molecular cores, masers, compact/extended H II ...
Solar Observing Curriculum Guide
... We know now that sunspots are actually cooler portions of the Sun’s surface, caused by twisted magnetic lines penetrating the surface. The Sun has a magnetic field, just like the Earth, but as it rotates its magnetic field lines get twisted and tangled, like a rubber band. These eventually “snap”, ...
... We know now that sunspots are actually cooler portions of the Sun’s surface, caused by twisted magnetic lines penetrating the surface. The Sun has a magnetic field, just like the Earth, but as it rotates its magnetic field lines get twisted and tangled, like a rubber band. These eventually “snap”, ...
D109-08x
... apart as it races at 4.5 million miles per hour through the heart of a distant cluster of galaxies. The images, taken over several wavelengths, provide evidence of the "galactic assault and battery," namely, gas being stripped from the doomed galaxy, called C153. The composite photograph at left was ...
... apart as it races at 4.5 million miles per hour through the heart of a distant cluster of galaxies. The images, taken over several wavelengths, provide evidence of the "galactic assault and battery," namely, gas being stripped from the doomed galaxy, called C153. The composite photograph at left was ...
Observational Astronomy
... Bolometric magnitude M(bol) is defined as the absolute magnitude that would be measured by an ideal bolometer exposed to all of the radiation from an object in space. The relation between bolometric magnitude and the absolute magnitude MV requires the knowledge of the bolometric correction B.C.: ...
... Bolometric magnitude M(bol) is defined as the absolute magnitude that would be measured by an ideal bolometer exposed to all of the radiation from an object in space. The relation between bolometric magnitude and the absolute magnitude MV requires the knowledge of the bolometric correction B.C.: ...
29-4 - Fremont Peak Observatory
... Rick after his many years of years of dedicated service on the FPOA Board of Directors. Rick has been Secretary, Treasurer and President before retiring from the FPOA Board at the end of 2012. Rick has also been the principal liaison between State Parks and the FPOA during his tenure as resident ran ...
... Rick after his many years of years of dedicated service on the FPOA Board of Directors. Rick has been Secretary, Treasurer and President before retiring from the FPOA Board at the end of 2012. Rick has also been the principal liaison between State Parks and the FPOA during his tenure as resident ran ...
MEADE INSTRUCTION MANUAL
... Perform the first part of this procedure during the daytime and the last step at night. 1. Point the telescope at an easy-to-find land object such as the top of a telephone pole or a distant mountain or tower. Look through the eyepiece in the diagonal mirror and turn the focuser knob (23) until the ...
... Perform the first part of this procedure during the daytime and the last step at night. 1. Point the telescope at an easy-to-find land object such as the top of a telephone pole or a distant mountain or tower. Look through the eyepiece in the diagonal mirror and turn the focuser knob (23) until the ...
Falling Stars
... was and ask others if they saw it, too. Often, no one else sees the speedy flight of light flash by, and you are left trying to describe what you saw and felt. You stare at the dark space, hoping another will streak across the sky. ...
... was and ask others if they saw it, too. Often, no one else sees the speedy flight of light flash by, and you are left trying to describe what you saw and felt. You stare at the dark space, hoping another will streak across the sky. ...
Astrophysics by Daniel Yang
... Gamma rays, X-rays, UV rays, infrared radiation, and long λ radio waves all are filtered out by the Earth’s atmosphere and ionosphere. Ground-based astronomy using these wavebands is nearly impossible due to the very low intensity of radiation received. To combat this, telescopes that use these wave ...
... Gamma rays, X-rays, UV rays, infrared radiation, and long λ radio waves all are filtered out by the Earth’s atmosphere and ionosphere. Ground-based astronomy using these wavebands is nearly impossible due to the very low intensity of radiation received. To combat this, telescopes that use these wave ...
A-level Physics A Question paper Unit 05 - (A) Section 2
... 2 (b) (ii) One of the nearest exoplanets orbits the star Epsilon Eridani, which is 10.5 light years from Earth. The exoplanet has an elliptical orbit, whose orbital radius varies from 1 AU to 5 AU. Calculate the maximum angular separation of the star and the planet when viewed from a distance of 10. ...
... 2 (b) (ii) One of the nearest exoplanets orbits the star Epsilon Eridani, which is 10.5 light years from Earth. The exoplanet has an elliptical orbit, whose orbital radius varies from 1 AU to 5 AU. Calculate the maximum angular separation of the star and the planet when viewed from a distance of 10. ...
T Einstein’s Mirage Paul L. Schechter
... cosmic mirages might actually be observed was taken seriously byonly a small number of astrophysicists. Most of the papers written on the subject treated them as academic curiosities, far too unlikely to actually be observed. But in 1979what appeared to be a close pair of virtually identical quasars ...
... cosmic mirages might actually be observed was taken seriously byonly a small number of astrophysicists. Most of the papers written on the subject treated them as academic curiosities, far too unlikely to actually be observed. But in 1979what appeared to be a close pair of virtually identical quasars ...
Reflecting vs Refracting
... scattering into the ‘top’ 2π half-sphere, one might expect a factor of 2. The forwardscattering peak, however, is several hundred times brighter (at our low angles) than the back-scattering peak, so this simple argument doesn’t hold. The forward-scattering peak does scale like the particle area squa ...
... scattering into the ‘top’ 2π half-sphere, one might expect a factor of 2. The forwardscattering peak, however, is several hundred times brighter (at our low angles) than the back-scattering peak, so this simple argument doesn’t hold. The forward-scattering peak does scale like the particle area squa ...
Low-Res Version - Chandra X
... galaxy. It was formed from a relatively recent (30 million years ago) merger of two smaller galaxies. The merger is causing stars to form, evolve, and explode at an exceptionally rapid rate, creating the large cloud of multimillion degree Celsius gas seen in this image. The central region of the mer ...
... galaxy. It was formed from a relatively recent (30 million years ago) merger of two smaller galaxies. The merger is causing stars to form, evolve, and explode at an exceptionally rapid rate, creating the large cloud of multimillion degree Celsius gas seen in this image. The central region of the mer ...
FOTO Imaging - Cincinnati Observatory
... there all day to take care of any hunger pains that hit while you browse the displays. An Italian dinner catered by Bella Luna will be served from 6:00 until 7:30. After dinner, keynote speaker James Albury will take the stage. James, along with our very own Dean Regas, is co-host of the television ...
... there all day to take care of any hunger pains that hit while you browse the displays. An Italian dinner catered by Bella Luna will be served from 6:00 until 7:30. After dinner, keynote speaker James Albury will take the stage. James, along with our very own Dean Regas, is co-host of the television ...
On the hunt for a mystery planet
... then started a systematic survey to search for still more-distant worlds. They are the only team routinely looking for the most-extreme objects. “The population could be huge,” says Trujillo. “That’s why we’re doing the search.” By 2012, the two were using the biggest light buckets they could get th ...
... then started a systematic survey to search for still more-distant worlds. They are the only team routinely looking for the most-extreme objects. “The population could be huge,” says Trujillo. “That’s why we’re doing the search.” By 2012, the two were using the biggest light buckets they could get th ...
W > 1 - The Open University
... Test your eyesight from a dark site by counting the number of naked eye stars that are visible. Seven should readily be seen. Keen vision will lead you into double figures. A test for moderate apertures is the nebulosity around some of the other brighter stars of the group, especially Merope. Nebula ...
... Test your eyesight from a dark site by counting the number of naked eye stars that are visible. Seven should readily be seen. Keen vision will lead you into double figures. A test for moderate apertures is the nebulosity around some of the other brighter stars of the group, especially Merope. Nebula ...
MSL Electromagnetic Spectrum
... Doppler Effect Summary Motion toward or away from an observer causes a shift in the observed wavelength of light: • blueshift (shorter wavelength) motion toward you ...
... Doppler Effect Summary Motion toward or away from an observer causes a shift in the observed wavelength of light: • blueshift (shorter wavelength) motion toward you ...
Tyler Gray - Angelfire
... observers of the Ferguson Observatory near Kenwood, CA have photographed G1 and four fainter M31 globulars. The astrophotographer is even better off, as he can gather the fainter light of the fine detail in the spiral arms, as in our image: Amateurs can obtain most striking pictures even with inexp ...
... observers of the Ferguson Observatory near Kenwood, CA have photographed G1 and four fainter M31 globulars. The astrophotographer is even better off, as he can gather the fainter light of the fine detail in the spiral arms, as in our image: Amateurs can obtain most striking pictures even with inexp ...
A Starscape in Red and Blue - Royal Astronomical Society of Canada
... of high-contrast imaging to better study faint planets or dusty disks next to bright stars. It had its first-light run in November 2013. Lawrence Livermore National Laboratory in Livermore (LLNL), California, oversaw a multi-institutional team for nearly a decade in the design, engineering, building ...
... of high-contrast imaging to better study faint planets or dusty disks next to bright stars. It had its first-light run in November 2013. Lawrence Livermore National Laboratory in Livermore (LLNL), California, oversaw a multi-institutional team for nearly a decade in the design, engineering, building ...
Spitzer Space Telescope
The Spitzer Space Telescope (SST), formerly the Space Infrared Telescope Facility (SIRTF), is an infrared space observatory launched in 2003. It is the fourth and final of the NASA Great Observatories program.The planned mission period was to be 2.5 years with a pre-launch expectation that the mission could extend to five or slightly more years until the onboard liquid helium supply was exhausted. This occurred on 15 May 2009. Without liquid helium to cool the telescope to the very low temperatures needed to operate, most of the instruments are no longer usable. However, the two shortest-wavelength modules of the IRAC camera are still operable with the same sensitivity as before the cryogen was exhausted, and will continue to be used in the Spitzer Warm Mission. All Spitzer data, from both the primary and warm phases, are archived at the Infrared Science Archive (IRSA).In keeping with NASA tradition, the telescope was renamed after its successful demonstration of operation, on 18 December 2003. Unlike most telescopes that are named after famous deceased astronomers by a board of scientists, the new name for SIRTF was obtained from a contest open to the general public.The contest led to the telescope being named in honor of astronomer Lyman Spitzer, who had promoted the concept of space telescopes in the 1940s. Spitzer wrote a 1946 report for RAND Corporation describing the advantages of an extraterrestrial observatory and how it could be realized with available or upcoming technology. He has been cited for his pioneering contributions to rocketry and astronomy, as well as ""his vision and leadership in articulating the advantages and benefits to be realized from the Space Telescope Program.""The US$800 million Spitzer was launched from Cape Canaveral Air Force Station, on a Delta II 7920H ELV rocket, Monday, 25 August 2003 at 13:35:39 UTC-5 (EDT).It follows a heliocentric instead of geocentric orbit, trailing and drifting away from Earth's orbit at approximately 0.1 astronomical unit per year (a so-called ""earth-trailing"" orbit). The primary mirror is 85 centimeters (33 in) in diameter, f/12, made of beryllium and is cooled to 5.5 K (−449.77 °F). The satellite contains three instruments that allow it to perform astronomical imaging and photometry from 3 to 180 micrometers, spectroscopy from 5 to 40 micrometers, and spectrophotometry from 5 to 100 micrometers.