Quiz # 3
... c. measuring the Doppler shift of its spectral lines d. making a blackbody curve and finding the wavelength of the peak (maximum) e. measuring the intensity of radio waves the star gives off 2. The most important function of an astronomical telescope is to: a. pierce through the clouds so a cloudy n ...
... c. measuring the Doppler shift of its spectral lines d. making a blackbody curve and finding the wavelength of the peak (maximum) e. measuring the intensity of radio waves the star gives off 2. The most important function of an astronomical telescope is to: a. pierce through the clouds so a cloudy n ...
Connecticut State Department of Education March 2009 Grade 5
... change the path of light by reflecting or refracting it. the structures of the human technology allow eye with those of the individuals to acquire Construct simple periscopes and telescopes, and analyze how the placement of their camera. new information about 2. lenses and mirrors affects the qualit ...
... change the path of light by reflecting or refracting it. the structures of the human technology allow eye with those of the individuals to acquire Construct simple periscopes and telescopes, and analyze how the placement of their camera. new information about 2. lenses and mirrors affects the qualit ...
F1 The ray diagram for a simple astronomical refracting telescope is
... which is achieved by changing to the next smallest f-number. So, if f/11 is the proper stop for (1/125) s, then we require f/8 for (1/250) s, f/5.6 for (1/500) s and f/4 for (1/1000) s. ...
... which is achieved by changing to the next smallest f-number. So, if f/11 is the proper stop for (1/125) s, then we require f/8 for (1/250) s, f/5.6 for (1/500) s and f/4 for (1/1000) s. ...
Design and Analysis for Interferometric Testing of the GMT Primary
... We use a dedicated laser tracker to measure the relative positions of the optics for this test. The laser tracker is a three-dimensional coordinate measurement system that measured positions of retroreflectors using combination of gimbal angles and line of sight absolute distance measuring (ADM). Tr ...
... We use a dedicated laser tracker to measure the relative positions of the optics for this test. The laser tracker is a three-dimensional coordinate measurement system that measured positions of retroreflectors using combination of gimbal angles and line of sight absolute distance measuring (ADM). Tr ...
09 03 07 Logic Outline - The National Academies of Sciences
... telescope (discussed further below), was designed by undergraduate engineering students using FEA, and features a carbon fiber composite structure. Carbon fiber composites have about three times the stiffness to weight ratio of steel. Although carbon fiber is too expensive a material to use in large ...
... telescope (discussed further below), was designed by undergraduate engineering students using FEA, and features a carbon fiber composite structure. Carbon fiber composites have about three times the stiffness to weight ratio of steel. Although carbon fiber is too expensive a material to use in large ...
Astronomytests a
... byproduct that occurs because manufacturers sometimes choose to focus by moving the primary mirror. A Crayford focuser eliminates that issue because, with it, moving the primary isn’t necessary. Please note, and this is important, that all these issues lie with the SCT and/or the mount, not with the ...
... byproduct that occurs because manufacturers sometimes choose to focus by moving the primary mirror. A Crayford focuser eliminates that issue because, with it, moving the primary isn’t necessary. Please note, and this is important, that all these issues lie with the SCT and/or the mount, not with the ...
The Cosmic Perspective Telescopes Portals of Discovery
... • Focusing of X-rays requires special mirrors. • Mirrors are arranged to focus X-ray photons through grazing bounces off the surface. © 2014 Pearson Education, Inc. ...
... • Focusing of X-rays requires special mirrors. • Mirrors are arranged to focus X-ray photons through grazing bounces off the surface. © 2014 Pearson Education, Inc. ...
The Challenge of Distances (PowerPoint version)
... more remote galaxies is of course even more challenging. ...
... more remote galaxies is of course even more challenging. ...
next generation optical spectrograph for noao
... Multi-fiber instruments revolutionized astronomy in the mid-80’s by significantly increasing the number of targets that could be realistically observed for a given astronomical study from a few to a few hundred. This increased the validity of the results by an order of magnitude, moving the science ...
... Multi-fiber instruments revolutionized astronomy in the mid-80’s by significantly increasing the number of targets that could be realistically observed for a given astronomical study from a few to a few hundred. This increased the validity of the results by an order of magnitude, moving the science ...
Read the article
... byproduct that occurs because manufacturers sometimes choose to focus by moving the primary mirror. A Crayford focuser eliminates that issue because, with it, moving the primary isn’t necessary. Please note, and this is important, that all these issues lie with the SCT and/or the mount, not with the ...
... byproduct that occurs because manufacturers sometimes choose to focus by moving the primary mirror. A Crayford focuser eliminates that issue because, with it, moving the primary isn’t necessary. Please note, and this is important, that all these issues lie with the SCT and/or the mount, not with the ...
thin silicon carbide coating of the primary mirror of vuv imaging
... irradiation, can greatly benefit from this design using a mirror with low absorption of the solar spectrum. For a normal-incidence VUV spectrograph such an in-band reflecting mirror will provide the needed reflectance while absorbing only less than 8 % of the solar power. This will be of benefit for ...
... irradiation, can greatly benefit from this design using a mirror with low absorption of the solar spectrum. For a normal-incidence VUV spectrograph such an in-band reflecting mirror will provide the needed reflectance while absorbing only less than 8 % of the solar power. This will be of benefit for ...
Pathway Toward a Mid-Infrared Interferometer for the Direct
... problematic). Moons of giant planets in the habitable zone are also potential sites for life. And later on, in a far but not unrealistic future (Labeyrie 1996, Labeyrie et al. 2008, Schneider et al. 2005), it will be necessary the make the multipixel cartography of planet surfaces. They will be nece ...
... problematic). Moons of giant planets in the habitable zone are also potential sites for life. And later on, in a far but not unrealistic future (Labeyrie 1996, Labeyrie et al. 2008, Schneider et al. 2005), it will be necessary the make the multipixel cartography of planet surfaces. They will be nece ...
Optical Term Definitions
... Let us imagine that rays originating at the front focal point F (and therefore parallel to the optical axis after emergence from the opposite side of the lens) are singly refracted at some imaginary surface, instead of twice refracted (once at each lens surface) as actually happens. There is a uniqu ...
... Let us imagine that rays originating at the front focal point F (and therefore parallel to the optical axis after emergence from the opposite side of the lens) are singly refracted at some imaginary surface, instead of twice refracted (once at each lens surface) as actually happens. There is a uniqu ...
Brownies worksheet
... 3. Which part of you looks the hottest? ______________________________________ Near the TV screen are some props. Try holding these up to the camera. Do they look the same? ...
... 3. Which part of you looks the hottest? ______________________________________ Near the TV screen are some props. Try holding these up to the camera. Do they look the same? ...
Lecture 3.3.
... An object 0.5 cm in height is placed 8 cm from a convex lens of focal length 10 cm. Determine the position, magnification, orientation and height of the image. ...
... An object 0.5 cm in height is placed 8 cm from a convex lens of focal length 10 cm. Determine the position, magnification, orientation and height of the image. ...
Combating Mirror Seeing
... Zerodur will equalize 1.1x faster than Borofloat when both are the same thickness, say 25mm. Although aluminum is denser than both Zerodur and Borofloat, as well as being quite close to both in heat capacity, it has far superior thermal conductivity. In the same thickness aluminum will equalize 95.7 ...
... Zerodur will equalize 1.1x faster than Borofloat when both are the same thickness, say 25mm. Although aluminum is denser than both Zerodur and Borofloat, as well as being quite close to both in heat capacity, it has far superior thermal conductivity. In the same thickness aluminum will equalize 95.7 ...
New Developments of Scintillating Crystal
... Such devices allow the detection of single photons with sub-nanosecond timing precision and offer additional improvements in performance over standard large photomultiplier tubes. Improved overall detection efficiency is possible through the more efficient electrostatic collection of photoelectrons ...
... Such devices allow the detection of single photons with sub-nanosecond timing precision and offer additional improvements in performance over standard large photomultiplier tubes. Improved overall detection efficiency is possible through the more efficient electrostatic collection of photoelectrons ...
Optical Design and Fabrication
... Correction of local seeing effects Fast correction of mirror figure errors ...
... Correction of local seeing effects Fast correction of mirror figure errors ...
Spatial resolution and field of view, sensitivity
... Optical Design Aberrations: Spherical, Offaxis Parabola in AO System ...
... Optical Design Aberrations: Spherical, Offaxis Parabola in AO System ...
Optics Unit Textbook Review Answers
... Students should include personal uses of mirrors and also technological uses of mirrors that affect their lives such as vanity mirrors, dressing mirrors, rearview mirrors in cars, security mirrors, mirrored reflectors in flashlights, dental mirrors and solar cooking. Sample answers include eyeglasse ...
... Students should include personal uses of mirrors and also technological uses of mirrors that affect their lives such as vanity mirrors, dressing mirrors, rearview mirrors in cars, security mirrors, mirrored reflectors in flashlights, dental mirrors and solar cooking. Sample answers include eyeglasse ...
Collimating Orion StarMax and Apex Maksutov
... Then the alignment screw you would start with would be the screw on the right as shown in Figure 3. Your actions now depend on whether this alignment screw is a small or large screw. Please note that you will be working to adjust the mirror cell by keeping all the screws not too loose and not too ti ...
... Then the alignment screw you would start with would be the screw on the right as shown in Figure 3. Your actions now depend on whether this alignment screw is a small or large screw. Please note that you will be working to adjust the mirror cell by keeping all the screws not too loose and not too ti ...
CHAPTER 4 Light
... brain treats them as if they had come from behind the mirror When one looks into a mirror it appears as if you are looking through it and seeing the object on the other side. ...
... brain treats them as if they had come from behind the mirror When one looks into a mirror it appears as if you are looking through it and seeing the object on the other side. ...
Antarctic Infra-Red Telescope with a 40cm primary mirror
... because like the sun, Venus doesn’t set during summer in Antarctica. ...
... because like the sun, Venus doesn’t set during summer in Antarctica. ...
Prop 15 - WM Keck Observatory
... Purpose (Please describe succinctly the main purpose of the proposal: development project, general telescope engineering, instrument commissioning, problem trouble shooting, data quality, etc.): ...
... Purpose (Please describe succinctly the main purpose of the proposal: development project, general telescope engineering, instrument commissioning, problem trouble shooting, data quality, etc.): ...
Limits of Resolution: The Rayleigh Criterion
... Draw two lines on a white sheet of paper (several mm apart). How far away can you be and still distinguish the two lines? What does this tell you about the size of the eye's pupil? Can you be quantitative? (The size of an adult's pupil is discussed in Physics of the Eye .) Just what is the limit? To ...
... Draw two lines on a white sheet of paper (several mm apart). How far away can you be and still distinguish the two lines? What does this tell you about the size of the eye's pupil? Can you be quantitative? (The size of an adult's pupil is discussed in Physics of the Eye .) Just what is the limit? To ...
Reflecting telescope
A reflecting telescope (also called a reflector) is an optical telescope which uses a single or combination of curved mirrors that reflect light and form an image. The reflecting telescope was invented in the 17th century as an alternative to the refracting telescope which, at that time, was a design that suffered from severe chromatic aberration. Although reflecting telescopes produce other types of optical aberrations, it is a design that allows for very large diameter objectives. Almost all of the major telescopes used in astronomy research are reflectors. Reflecting telescopes come in many design variations and may employ extra optical elements to improve image quality or place the image in a mechanically advantageous position. Since reflecting telescopes use mirrors, the design is sometimes referred to as a ""catoptric"" telescope.