ShaneAO viewgraphs - Laboratory for Adaptive Optics
... Why do astronomers need AO? Three images of a bright star: Lick Observatory, 1 m telescope ...
... Why do astronomers need AO? Three images of a bright star: Lick Observatory, 1 m telescope ...
`IMAKA: Imaging from Mauna KeA with an atmosphere corrected 1
... throughput. The camera is placed at the direct focus after a wide field corrector, which can also serve as a focal adapter to obtain the proper plate scale on the detector. The cost of such mirrors is high and the conjugation is not ideal, since in a Cassegrain design the secondary mirror is usually ...
... throughput. The camera is placed at the direct focus after a wide field corrector, which can also serve as a focal adapter to obtain the proper plate scale on the detector. The cost of such mirrors is high and the conjugation is not ideal, since in a Cassegrain design the secondary mirror is usually ...
Other Stuff
... Image Simulation • For an optical designer the lens performance is specified in terms of spot diagrams, ray-fan plots, vignetting, field curvature, astigmatism etc • In some cases its much more effective to demonstrate what images will look like when viewed through the lens • Zemax now has a nic ...
... Image Simulation • For an optical designer the lens performance is specified in terms of spot diagrams, ray-fan plots, vignetting, field curvature, astigmatism etc • In some cases its much more effective to demonstrate what images will look like when viewed through the lens • Zemax now has a nic ...
FTIR Instrumentation
... celestial bodies and produced the first Fourier transform infrared spectrum. But for many years, only a few advanced research groups with access to large, expensive computers and with personnel able to wait up to 12 hours to transform an interferogram into a spectrum used Fourier transform infrared ...
... celestial bodies and produced the first Fourier transform infrared spectrum. But for many years, only a few advanced research groups with access to large, expensive computers and with personnel able to wait up to 12 hours to transform an interferogram into a spectrum used Fourier transform infrared ...
104-cm Sampurnanand Telescope
... mm, f/14, reflector), 8-inch (200 mm, f/15, refractor) and 4-inch (110 mm, f/7, refrator type). The 8 and 4-inch finder telescopes are equipped with eyepieces which covers around 20 and 90 arcmin field of view respectively. The 8-inch refractor is also used for guiding the main (104-cm) telescope. A ...
... mm, f/14, reflector), 8-inch (200 mm, f/15, refractor) and 4-inch (110 mm, f/7, refrator type). The 8 and 4-inch finder telescopes are equipped with eyepieces which covers around 20 and 90 arcmin field of view respectively. The 8-inch refractor is also used for guiding the main (104-cm) telescope. A ...
gunclubscope
... We have established the fact that the telescope on the Rocky Mountains was not the right instrument to follow the travel of the 9-ft cannon ball toward the Moon. It was out of the possibilities of the instrument to see such a little object, notwithstanding the tremendous enlarging power employed. Ab ...
... We have established the fact that the telescope on the Rocky Mountains was not the right instrument to follow the travel of the 9-ft cannon ball toward the Moon. It was out of the possibilities of the instrument to see such a little object, notwithstanding the tremendous enlarging power employed. Ab ...
Status of mirror segment production for the Giant Magellan Telescope
... resolution and a very high dynamic range for slope errors.[8],[9] The slopes are integrated to give a full surface measurement with high accuracy on scales up to about 2 m. ...
... resolution and a very high dynamic range for slope errors.[8],[9] The slopes are integrated to give a full surface measurement with high accuracy on scales up to about 2 m. ...
Ray matrices and geometrical optics
... converge to the z axis (xout = 0) independent of input position. Parallel rays at a different angle focus at a different xout. ...
... converge to the z axis (xout = 0) independent of input position. Parallel rays at a different angle focus at a different xout. ...
Wide Eye Debris telescope allows to catalogue objects in any orbital
... Fly-Eye (FY) structure. This concept has been proposed for the fabrication of Fast Cameras in Wide Field imaging for very large aperture telescopes by the INAF Institute (Gentile et al. 2006). The FY design consists in splitting the overall FoV in sub FoVs on which an array of corrector elements are ...
... Fly-Eye (FY) structure. This concept has been proposed for the fabrication of Fast Cameras in Wide Field imaging for very large aperture telescopes by the INAF Institute (Gentile et al. 2006). The FY design consists in splitting the overall FoV in sub FoVs on which an array of corrector elements are ...
October, 2014 - Mahoning Valley Astronomical Society
... Black River OTAA. It was another great Black River meeting. Held Sep. 20th at the Birmingham Methodist Church. Nice blue skies greeted everyone arriving for 5PM registration. Plenty of time to visit with friends from ACA, BRAS, CAA and CVAS. About fifty-two people came out to congratulate and help c ...
... Black River OTAA. It was another great Black River meeting. Held Sep. 20th at the Birmingham Methodist Church. Nice blue skies greeted everyone arriving for 5PM registration. Plenty of time to visit with friends from ACA, BRAS, CAA and CVAS. About fifty-two people came out to congratulate and help c ...
The Catalina Sky Survey NEO Follow-up
... • Public posting on NEO Confirmation Page • Follow-up: confirmation and orbit refinement • Designation + publication (MPECs) • Additional follow-up for orbit refinement ...
... • Public posting on NEO Confirmation Page • Follow-up: confirmation and orbit refinement • Designation + publication (MPECs) • Additional follow-up for orbit refinement ...
Optics Lesson 6
... note that a converging lens and concave mirror are also capable of producing virtual images if the object is within the focal length. ...
... note that a converging lens and concave mirror are also capable of producing virtual images if the object is within the focal length. ...
Optical Instruments - Dr. Dr. Bill`s Page
... A radiuscope produces a virtual object conjugate to the eye of the observer. The observer adjusts the instrument up and down until he finds two different positions at which he can see the image of that object clearly. The radius of curvature of the surface is the physical distance the instrument mov ...
... A radiuscope produces a virtual object conjugate to the eye of the observer. The observer adjusts the instrument up and down until he finds two different positions at which he can see the image of that object clearly. The radius of curvature of the surface is the physical distance the instrument mov ...
The E-ELT instrument roadmap: a status report
... to all users. The standard mode of operation is for the instrument to be located at one port of the multi-conjugate adaptive optics facility, MAORY. The MICADO field of view will be ~1arcminute in diameter with 6-10mas angular resolution and with uniform PSFs over that field delivered by MAORY. A se ...
... to all users. The standard mode of operation is for the instrument to be located at one port of the multi-conjugate adaptive optics facility, MAORY. The MICADO field of view will be ~1arcminute in diameter with 6-10mas angular resolution and with uniform PSFs over that field delivered by MAORY. A se ...
The Cosmic Microwave Background Radiation Temperature
... Thus one should be able to solve for and remove the atmospheric contribution by carefully measuring the telescope response as a function of zenith angle, leaving only the CMBR brightness temperature. In practice, this correction is dicult to achieve with the telescope we have, because of contaminat ...
... Thus one should be able to solve for and remove the atmospheric contribution by carefully measuring the telescope response as a function of zenith angle, leaving only the CMBR brightness temperature. In practice, this correction is dicult to achieve with the telescope we have, because of contaminat ...
Document
... Primary mirror of telescope • “Coherence Length” r0 : distance over which optical phase distortion has mean square value of 1 rad2 (r0 ~ 15 - 30 cm at good observing sites) • PSF is |FT(wavefront@pupil)| FWHM ...
... Primary mirror of telescope • “Coherence Length” r0 : distance over which optical phase distortion has mean square value of 1 rad2 (r0 ~ 15 - 30 cm at good observing sites) • PSF is |FT(wavefront@pupil)| FWHM ...
PH507lecnote07_mcp5
... unchanged, alternately stretching and shrinking distances on an infinitesimal scale. Their strength decreases as a function of distance from their source. The study of gravitational waves could yield an incredible amount of information about the universe and lead to many practical applications. For ...
... unchanged, alternately stretching and shrinking distances on an infinitesimal scale. Their strength decreases as a function of distance from their source. The study of gravitational waves could yield an incredible amount of information about the universe and lead to many practical applications. For ...
INTL JOURNAL OF ELECTRONICS AND TELECOMMUNICATIONS
... becomes necessary to guide the telescope during the image exposure. Even the finest, most expensive mounts are plagued by mechanical imperfections or alignment errors, which may produce oblong stars. In Fig. 8 and 9 two pictures of the M81 Galaxy in Ursa Major are shown. The first one is made in con ...
... becomes necessary to guide the telescope during the image exposure. Even the finest, most expensive mounts are plagued by mechanical imperfections or alignment errors, which may produce oblong stars. In Fig. 8 and 9 two pictures of the M81 Galaxy in Ursa Major are shown. The first one is made in con ...
Waves & Oscillations Physics 42200 Spring 2014 Semester Lecture 39 – Review
... (b) Calculate the intensity of transmitted light if the incident light is unpolarized (c) Calculate the intensity of transmitted light if the incident light is left circular polarized (d) Is the system symmetric? That is, is the intensity of transmitted light the same if the paths of all light rays ...
... (b) Calculate the intensity of transmitted light if the incident light is unpolarized (c) Calculate the intensity of transmitted light if the incident light is left circular polarized (d) Is the system symmetric? That is, is the intensity of transmitted light the same if the paths of all light rays ...
The Michelson Interferometer The Michelson
... The formula for the intensity of the two slit interference pattern included the contributions from two point sources. This was not really realistic and it did not properly describe what you saw on the screen. Each of the two slits has a finite width, and the light is diffracted through it in a singl ...
... The formula for the intensity of the two slit interference pattern included the contributions from two point sources. This was not really realistic and it did not properly describe what you saw on the screen. Each of the two slits has a finite width, and the light is diffracted through it in a singl ...
SkyFi Quick Start
... 3. Now turn on SkyFi. Move the power switch right to the BAT position to use battery power, or left to the EXT position to use external power. 4. The status LED should light up red at first, then turn green after a few seconds. If it does not, turn the power off for a few seconds, then turn it on ag ...
... 3. Now turn on SkyFi. Move the power switch right to the BAT position to use battery power, or left to the EXT position to use external power. 4. The status LED should light up red at first, then turn green after a few seconds. If it does not, turn the power off for a few seconds, then turn it on ag ...
Infrared - World of Teaching
... Infrared Telescopes • Infrared telescopes work much like visible light telescopes • Light hits parabolic mirror • Light is sent to focal point • Light is recorded by computer and translated into visible light ...
... Infrared Telescopes • Infrared telescopes work much like visible light telescopes • Light hits parabolic mirror • Light is sent to focal point • Light is recorded by computer and translated into visible light ...
4. Top level requirements
... differential position displacement at different locations due to refraction may prevent long exposures. Unless the readout noise of detectors is extremely low (so that short exposure can be co-added after geometrical alignment), or techniques to reformat the focal plane can be developed (e.g. with a ...
... differential position displacement at different locations due to refraction may prevent long exposures. Unless the readout noise of detectors is extremely low (so that short exposure can be co-added after geometrical alignment), or techniques to reformat the focal plane can be developed (e.g. with a ...
SVSU Regional Mathematics and Science Center “The Newsletter
... responsible for the images that we see from this telescope. Apart from these cameras and spectrographs, there are various sensors as well that are responsible for guiding the Hubble. The design of the Telescope was made in a way that could assure its survival in the space. ...
... responsible for the images that we see from this telescope. Apart from these cameras and spectrographs, there are various sensors as well that are responsible for guiding the Hubble. The design of the Telescope was made in a way that could assure its survival in the space. ...
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.