instruction manual
... an adapter so that the camera can be focussed. Some reflectors need more length than the focuser can travel, in order to focus the camera, and some refractors are designed to be used with diagonals, so when used with only a camera, their focal length has to be extended. This is particularly true whe ...
... an adapter so that the camera can be focussed. Some reflectors need more length than the focuser can travel, in order to focus the camera, and some refractors are designed to be used with diagonals, so when used with only a camera, their focal length has to be extended. This is particularly true whe ...
eROSITA Mission Definition Document
... The eROSITA telescopes are based on the existing design launched on the (unfortunately failed) ABRIXAS mission and flight-ready detectors have been fabricated, which guarantees the high sensitivity required for the broad band all-sky survey. In order to optimise eROSITA for the additional science go ...
... The eROSITA telescopes are based on the existing design launched on the (unfortunately failed) ABRIXAS mission and flight-ready detectors have been fabricated, which guarantees the high sensitivity required for the broad band all-sky survey. In order to optimise eROSITA for the additional science go ...
Ronald`s presentation
... mostly having to do with vertical height in the faring (a high center of gravity, load paths and acoustic loads are additional complications) limits you to ...
... mostly having to do with vertical height in the faring (a high center of gravity, load paths and acoustic loads are additional complications) limits you to ...
Measuring Magnitudes
... 1) Move the cursor to an area that is representative of the background surrounding the object you wish to measure. For example if you're trying to determine the magnitude of a star buried in nebulosity you would select a background area with roughly the same brightness as the nebulosity surrounding ...
... 1) Move the cursor to an area that is representative of the background surrounding the object you wish to measure. For example if you're trying to determine the magnitude of a star buried in nebulosity you would select a background area with roughly the same brightness as the nebulosity surrounding ...
Pathways to Astronomy/Space
... series of six modules, by which all of the expectations may be covered. To complete the pathway, the big picture is then revisited and a culminating activity is also provided. Each pathway allows the teacher to travel through the curriculum expectations in a creative and meaningful way that is hands ...
... series of six modules, by which all of the expectations may be covered. To complete the pathway, the big picture is then revisited and a culminating activity is also provided. Each pathway allows the teacher to travel through the curriculum expectations in a creative and meaningful way that is hands ...
No Slide Title
... What type of star has the mass of our Sun and the radius of the Earth but it doesn’t emit enough light or other radiation to be easily detected? ...
... What type of star has the mass of our Sun and the radius of the Earth but it doesn’t emit enough light or other radiation to be easily detected? ...
NASA FUSE Satellite Solves the Case of the Missing Deuterium
... -2 In 2003, Bruce Draine of Princeton University, a co-author on the new result, developed computer models that showed how deuterium, compared to hydrogen, might preferentially bind to interstellar dust grains, changing from an easily detectable gaseous form to an unobservable solid form. The new F ...
... -2 In 2003, Bruce Draine of Princeton University, a co-author on the new result, developed computer models that showed how deuterium, compared to hydrogen, might preferentially bind to interstellar dust grains, changing from an easily detectable gaseous form to an unobservable solid form. The new F ...
This Month`s Celestial Events - Fort Worth Astronomical Society
... rest were their children – now all teenage sisters. When you look up at the Pleiades, you may only see only five or six stars. Binoculars reveal over a hundred more. Large telescopes have found over 3,000 stars in the Pleiades family. Born while the dinosaurs were roaming the Earth, the Pleiades fam ...
... rest were their children – now all teenage sisters. When you look up at the Pleiades, you may only see only five or six stars. Binoculars reveal over a hundred more. Large telescopes have found over 3,000 stars in the Pleiades family. Born while the dinosaurs were roaming the Earth, the Pleiades fam ...
Astro-MilkyWay
... formation produce bubbles of very hot gas • This hot gas can break out of the galactic disk and produce a galactic fountain • As the gas cools, it falls back to the disk, spreading heavy elements throughout the galaxy ...
... formation produce bubbles of very hot gas • This hot gas can break out of the galactic disk and produce a galactic fountain • As the gas cools, it falls back to the disk, spreading heavy elements throughout the galaxy ...
Chapter 15
... formation produce bubbles of very hot gas • This hot gas can break out of the galactic disk and produce a galactic fountain • As the gas cools, it falls back to the disk, spreading heavy elements throughout the galaxy ...
... formation produce bubbles of very hot gas • This hot gas can break out of the galactic disk and produce a galactic fountain • As the gas cools, it falls back to the disk, spreading heavy elements throughout the galaxy ...
RFO Yard Sale Inventory – as of May 29, 2013
... Free to a good home Optical Test Benches We also have two neglected optical test benches, one wood and one metal. They are somewhat buried in their current location, so it is difficult to access their exact size and condition. My best estimate is that they are about one foot wide and between six and ...
... Free to a good home Optical Test Benches We also have two neglected optical test benches, one wood and one metal. They are somewhat buried in their current location, so it is difficult to access their exact size and condition. My best estimate is that they are about one foot wide and between six and ...
The Milky Way
... formation produce bubbles of very hot gas • This hot gas can break out of the galactic disk and produce a galactic fountain • As the gas cools, it falls back to the disk, spreading heavy elements throughout the galaxy ...
... formation produce bubbles of very hot gas • This hot gas can break out of the galactic disk and produce a galactic fountain • As the gas cools, it falls back to the disk, spreading heavy elements throughout the galaxy ...
Turbulence Layers - Facultad de Ciencias
... Extreme AO (e.g. “planet finders”) aims for >90% strehl at K… but with bright stars AGN are not particularly bright (fainter than typical limit of R~15mag), and tend to be fuzzy with a relatively bright background. Off-axis correction is usually not an option. LGS performance can vary from 0.1” reso ...
... Extreme AO (e.g. “planet finders”) aims for >90% strehl at K… but with bright stars AGN are not particularly bright (fainter than typical limit of R~15mag), and tend to be fuzzy with a relatively bright background. Off-axis correction is usually not an option. LGS performance can vary from 0.1” reso ...
instruction manual - Optical Vision Ltd
... an adapter so that the camera can be focussed. Some reflectors need more length than the focuser can travel, in order to focus the camera, and some refractors are designed to be used with diagonals, so when used with only a camera, their focal length has to be extended. This is particularly true whe ...
... an adapter so that the camera can be focussed. Some reflectors need more length than the focuser can travel, in order to focus the camera, and some refractors are designed to be used with diagonals, so when used with only a camera, their focal length has to be extended. This is particularly true whe ...
ph709-14
... central star has been artificially blocked out by astronomers using a ‘Coronograph’ This disk around Beta Pictoris is probably connected with a planetary system. The disk does not start at the star. Rather, its inner edge begins around 25 AU away, farther than the average orbital distance of Uranus ...
... central star has been artificially blocked out by astronomers using a ‘Coronograph’ This disk around Beta Pictoris is probably connected with a planetary system. The disk does not start at the star. Rather, its inner edge begins around 25 AU away, farther than the average orbital distance of Uranus ...
Far Ultraviolet Spectroscopic Explorer
... of MANY individual exposures, with each color representing the light from a different filter or instrument. • Each filter captures light from a certain color of star or emission component of the gas. • Primary colors combine in places to show where multiple emissions are present. Crab Nebula July 4, ...
... of MANY individual exposures, with each color representing the light from a different filter or instrument. • Each filter captures light from a certain color of star or emission component of the gas. • Primary colors combine in places to show where multiple emissions are present. Crab Nebula July 4, ...
Ay 105 Lab Experiment #2: Geometric optics
... an element (one “line pair”) in each group that is visible, albeit perhaps faint. You know from the “Line Pairs Per Millimeter” chart in the handout the actual sizes of each feature measured in the focal plane of the achromat lens, so from your measurements you can determine the effective focal leng ...
... an element (one “line pair”) in each group that is visible, albeit perhaps faint. You know from the “Line Pairs Per Millimeter” chart in the handout the actual sizes of each feature measured in the focal plane of the achromat lens, so from your measurements you can determine the effective focal leng ...
Volume 2 - Euresis Journal
... In the early 1990s, astronomers refined the stability and accuracy of optical spectrographs on telescopes so that precisions of order 50 km/hr could be obtained when monitoring the light from the nearest (and hence brightest) stars. Planet discoveries around some of these stars soon began to flow in ...
... In the early 1990s, astronomers refined the stability and accuracy of optical spectrographs on telescopes so that precisions of order 50 km/hr could be obtained when monitoring the light from the nearest (and hence brightest) stars. Planet discoveries around some of these stars soon began to flow in ...
document
... Each lump of the cloud in which gravity can overcome pressure can go on to become a star. A large cloud can make a whole cluster of stars. ...
... Each lump of the cloud in which gravity can overcome pressure can go on to become a star. A large cloud can make a whole cluster of stars. ...
From Musician to Astronomer: The Great William Herschel
... Discovery of Georgium Sidus (Uranus) • 1781 March 13 in Gemini • Made Herschel’s name famous overnight • Planet ultimately named Uranus • Eventually was offered royal pension by King George III to devote his time solely to astronomy • In 1782, Herschel moved to near London, Caroline accompanied him ...
... Discovery of Georgium Sidus (Uranus) • 1781 March 13 in Gemini • Made Herschel’s name famous overnight • Planet ultimately named Uranus • Eventually was offered royal pension by King George III to devote his time solely to astronomy • In 1782, Herschel moved to near London, Caroline accompanied him ...
Satellite web hunt
... are usually placed in a geostationary orbit. They orbit above the Earth’s equator and have a period and direction that matches the rotation of the Earth. This allows the satellite to stay above the same point on the Earth’s surface. Earth observation satellites have low Earth orbits to obtain detail ...
... are usually placed in a geostationary orbit. They orbit above the Earth’s equator and have a period and direction that matches the rotation of the Earth. This allows the satellite to stay above the same point on the Earth’s surface. Earth observation satellites have low Earth orbits to obtain detail ...
Telescope Optics Myths
... Apos do not suffer from chromatic aberration, so you get very highcontrast views. This would seem to mean great planetary observing, but the other important factor in viewing is aperture. The more aperture your telescope has, the greater the resolution, which is just as important as contrast for pla ...
... Apos do not suffer from chromatic aberration, so you get very highcontrast views. This would seem to mean great planetary observing, but the other important factor in viewing is aperture. The more aperture your telescope has, the greater the resolution, which is just as important as contrast for pla ...
charts_set_7
... Spectroscopic binaries are stars that orbit so closely, from Earth’s vantage point, that it requires a Doppler shift measurement to determine that there is more than a single star present. ...
... Spectroscopic binaries are stars that orbit so closely, from Earth’s vantage point, that it requires a Doppler shift measurement to determine that there is more than a single star present. ...
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.