how to set out an angle with the theo020 theodolite
... Turn the horizontal alignment knob until the vertical crosshair is lined up with B. 15 Unlock the vertical clamp and rotate the telescope until the horizontal crosshair is near B. 16 Lock the vertical clamp 17 Turn the vertical alignment knob until the horizontal crosshair is exactly on B 18 Release ...
... Turn the horizontal alignment knob until the vertical crosshair is lined up with B. 15 Unlock the vertical clamp and rotate the telescope until the horizontal crosshair is near B. 16 Lock the vertical clamp 17 Turn the vertical alignment knob until the horizontal crosshair is exactly on B 18 Release ...
Mapping the Milky Way: William Herschel`s Star-‐Gages
... Herschel’s Star Gages includes virtual star systems with non-‐uniform distributions of stars. Figure 6 illustrates one such system (labeled Nonuniform 1 in the program). The left part of Figure 6 sho ...
... Herschel’s Star Gages includes virtual star systems with non-‐uniform distributions of stars. Figure 6 illustrates one such system (labeled Nonuniform 1 in the program). The left part of Figure 6 sho ...
8 m Club Meeting - Adaptive optics
... Measurement of zodiacal dust around nearby stars using nulling (TPF) ...
... Measurement of zodiacal dust around nearby stars using nulling (TPF) ...
How to Buy Your First Telescope
... telescope in 1668. It had a mirror 1.3 inches across and a tube 6 inches long. Today, every “Newtonian” reflector contains two mirrors — a large curved one called the “primary” at the bottom of the tube, and a small, flat “secondary” near the top. Light enters, travels down the tube, hits the primar ...
... telescope in 1668. It had a mirror 1.3 inches across and a tube 6 inches long. Today, every “Newtonian” reflector contains two mirrors — a large curved one called the “primary” at the bottom of the tube, and a small, flat “secondary” near the top. Light enters, travels down the tube, hits the primar ...
Diffraction-limited astronomical X-ray imaging and X
... cm2 (depending on the wavelength) could be achieved with a moderately-sized Cassegrain-type telescope geometry, i.e., ~2.5 m diameter x 10 m focal length, and even greater effective area – in the range of 75 – 2500 cm2 – with a 2.5-mdiameter prime-focus geometry; further in the future, we can hope t ...
... cm2 (depending on the wavelength) could be achieved with a moderately-sized Cassegrain-type telescope geometry, i.e., ~2.5 m diameter x 10 m focal length, and even greater effective area – in the range of 75 – 2500 cm2 – with a 2.5-mdiameter prime-focus geometry; further in the future, we can hope t ...
ALMA band 9 optical layout
... In this part a few theoretical facts, used in the following practical design, are discussed. ...
... In this part a few theoretical facts, used in the following practical design, are discussed. ...
STARTRACKER SYSTEM - Galileo Telescope Makers
... permitting an unlimited opportunity to the advanced amateur for serious research. Each accessory, as part of an integrated system, attaches easily and directly to the instruments described in this manual, once you have a STANDARD STARTRACKER SYSTEM TELESCOPE you can update your telescope with optica ...
... permitting an unlimited opportunity to the advanced amateur for serious research. Each accessory, as part of an integrated system, attaches easily and directly to the instruments described in this manual, once you have a STANDARD STARTRACKER SYSTEM TELESCOPE you can update your telescope with optica ...
AstroMaster Series Telescopes
... Setting up the Tripod .................................................................................................................. 6 Attaching the Equatorial Mount.................................................................................................. 7 Installing the Counterweight B ...
... Setting up the Tripod .................................................................................................................. 6 Attaching the Equatorial Mount.................................................................................................. 7 Installing the Counterweight B ...
A Decadal Strategy for Human Capacity Development in Astronomy
... 3. Issues identified in Reviews .......................................................................................... 6 3.1 Institutional Review of the NRF and its National Facilities 1999‐2004.............................................. 7 3.2 The Astronomy Frontiers Programme ............ ...
... 3. Issues identified in Reviews .......................................................................................... 6 3.1 Institutional Review of the NRF and its National Facilities 1999‐2004.............................................. 7 3.2 The Astronomy Frontiers Programme ............ ...
スライド タイトルなし - X-ray Astronomy Group at ISAS
... Astro-E features excellent sensitivity, with high throughput over an unprecedented wide energy band from 0.5 keV to 600 keV. This wide bandpass, combined with high resolution spectroscopic capabilities, makes Astro-E a unique tool capable of addressing a wide variety of fundamental subjects in astro ...
... Astro-E features excellent sensitivity, with high throughput over an unprecedented wide energy band from 0.5 keV to 600 keV. This wide bandpass, combined with high resolution spectroscopic capabilities, makes Astro-E a unique tool capable of addressing a wide variety of fundamental subjects in astro ...
Middle Atmosphere Temperature Results from a New, High
... between. They tend to differ (TLidar −TMSIS) from each other by +10 K centered on 90 km to between −20 and −35 K over much of the rest of the altitude range. Some of this difference is undoubtedly due to wave effects in the Rayleigh observations, while waves have been effectively removed from MSIS. ...
... between. They tend to differ (TLidar −TMSIS) from each other by +10 K centered on 90 km to between −20 and −35 K over much of the rest of the altitude range. Some of this difference is undoubtedly due to wave effects in the Rayleigh observations, while waves have been effectively removed from MSIS. ...
Manual - Physics
... level, but it should be placed on somewhat flat ground or pavement to ensure smooth movement of the telescope. Keep in mind that the SkyQuest XT4.5 was designed specifically for visual observation of astronomical objects in the night sky. Like all Dobsonians, it is not well-suited for daytime, terre ...
... level, but it should be placed on somewhat flat ground or pavement to ensure smooth movement of the telescope. Keep in mind that the SkyQuest XT4.5 was designed specifically for visual observation of astronomical objects in the night sky. Like all Dobsonians, it is not well-suited for daytime, terre ...
How To Buy Your First Telescope
... Celestron 8 SCT had many advantages — 8 inches of aperture, light weight, better portability than any 8-inch reflector sold at the time, and an f/10 optical system, which provided good magnification. A range of ready-to-use accessories made celestial photography simple and popular. The complete syst ...
... Celestron 8 SCT had many advantages — 8 inches of aperture, light weight, better portability than any 8-inch reflector sold at the time, and an f/10 optical system, which provided good magnification. A range of ready-to-use accessories made celestial photography simple and popular. The complete syst ...
pdf
... project’s technical specifications and scientific objectives. The Very Large Array transitioned to full science operations in January 2013 as the world’s most capable and versatile centimeter-wave imaging array and is yielding dramatic new science results that range from Galactic protostellar clouds ...
... project’s technical specifications and scientific objectives. The Very Large Array transitioned to full science operations in January 2013 as the world’s most capable and versatile centimeter-wave imaging array and is yielding dramatic new science results that range from Galactic protostellar clouds ...
INSTRUCTION MANUAL Orion® SpaceProbe 130mm EQ
... while you observe, if your eyepieces have enough “eye relief” to allow you to see the whole field of view. You can try this by looking through the eyepiece first with your glasses on and then with them off, and see if the glasses restrict the view to only a portion of the full field. If they do, you ...
... while you observe, if your eyepieces have enough “eye relief” to allow you to see the whole field of view. You can try this by looking through the eyepiece first with your glasses on and then with them off, and see if the glasses restrict the view to only a portion of the full field. If they do, you ...
Active primary mirror support for the 2.1-m
... according to Saint Venant’s principle of elasticity.8 Because our main target is to control astigmatism in the 2-m mirror, the scale of distances under consideration is 100 cm. Furthermore, increasing the size of the pads has the double advantage of decreasing the effect of shear forces and decreasi ...
... according to Saint Venant’s principle of elasticity.8 Because our main target is to control astigmatism in the 2-m mirror, the scale of distances under consideration is 100 cm. Furthermore, increasing the size of the pads has the double advantage of decreasing the effect of shear forces and decreasi ...
dew/frost prevention
... lens. Good designs are flexible with Velcro tabs and a long power cable. They are available in various sizes. Specialty units are made for secondary mirrors, Telrads, etc. Dew heater straps are connected to a control box by RCA plugs which distributes the power via several outputs. Using efficient p ...
... lens. Good designs are flexible with Velcro tabs and a long power cable. They are available in various sizes. Specialty units are made for secondary mirrors, Telrads, etc. Dew heater straps are connected to a control box by RCA plugs which distributes the power via several outputs. Using efficient p ...
SPIE 2016-Gressler-Telescope-Status_SPIE Submittal
... Large Synoptic Survey Telescope, 950 N Cherry Ave., Tucson, AZ, USA 85719 ABSTRACT The Large Synoptic Survey Telescope (LSST) Project1 received its construction authorization from the National Science Foundation in August 2014. The Telescope and Site (T&S) group has made considerable progress toward ...
... Large Synoptic Survey Telescope, 950 N Cherry Ave., Tucson, AZ, USA 85719 ABSTRACT The Large Synoptic Survey Telescope (LSST) Project1 received its construction authorization from the National Science Foundation in August 2014. The Telescope and Site (T&S) group has made considerable progress toward ...
How to Buy your First Telescope
... Celestron 8 SCT had many advantages — 8 inches of aperture, light weight, better portability than any 8-inch reflector sold at the time, and an f/10 optical system, which provided good magnification. A range of ready-to-use accessories made celestial photography simple and popular. The complete syst ...
... Celestron 8 SCT had many advantages — 8 inches of aperture, light weight, better portability than any 8-inch reflector sold at the time, and an f/10 optical system, which provided good magnification. A range of ready-to-use accessories made celestial photography simple and popular. The complete syst ...
Wide-field CCD imager for the 6.5m MMT telescope
... direct imaging system will be located at the Cassegrain focus of the telescope, behind a three-element refractive corrector. We will use an array of 8x4 three-edge-buttable CCDs, each with 2048x4096 pixels and two output ampli ers. This will provide a eld of view of 240240 . With a new packaging s ...
... direct imaging system will be located at the Cassegrain focus of the telescope, behind a three-element refractive corrector. We will use an array of 8x4 three-edge-buttable CCDs, each with 2048x4096 pixels and two output ampli ers. This will provide a eld of view of 240240 . With a new packaging s ...
Deployment of the Hobby-Eberly Telescope wide
... surveys for the first time, uncovering populations of objects selected by their line emission rather than by their continuum emission properties. The primary motivation for the HET wide field upgrade (WFU) and VIRUS is to execute the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX12), which wi ...
... surveys for the first time, uncovering populations of objects selected by their line emission rather than by their continuum emission properties. The primary motivation for the HET wide field upgrade (WFU) and VIRUS is to execute the Hobby-Eberly Telescope Dark Energy Experiment (HETDEX12), which wi ...
Chapter 4 Telescope Making Basics
... For planetary or stellar observation, a telescope with a clear aperture of between 130 mm and 250 mm and a focal ratio greater than 6 will give good results. These objects are typically viewed under high magnification, and the optics must be of very good quality (λ/10 minimum). The handling characte ...
... For planetary or stellar observation, a telescope with a clear aperture of between 130 mm and 250 mm and a focal ratio greater than 6 will give good results. These objects are typically viewed under high magnification, and the optics must be of very good quality (λ/10 minimum). The handling characte ...
No Slide Title
... Frontiers in AO technology • New kinds of deformable mirrors with > 5000 degree of freedom • Wavefront sensors that can deal with this many degrees of freedom • Innovative control algorithms • Ways to make best use of information in multiple laser guide stars ...
... Frontiers in AO technology • New kinds of deformable mirrors with > 5000 degree of freedom • Wavefront sensors that can deal with this many degrees of freedom • Innovative control algorithms • Ways to make best use of information in multiple laser guide stars ...
Hubble Space Telescope
... 10. How many main computers are housed on Hubble? __________ 11. What are their functions? ...
... 10. How many main computers are housed on Hubble? __________ 11. What are their functions? ...
Allen Telescope Array
The Allen Telescope Array (ATA), formerly known as the One Hectare Telescope (1hT) is a radio telescope array dedicated to astronomical observations and a simultaneous Search for Extraterrestrial Intelligence (SETI). The array is situated at the Hat Creek Radio Observatory, 290 miles (470 km) northeast of San Francisco, California.Originally developed as a joint effort between the SETI Institute and the Radio Astronomy Laboratory (RAL) at the University of California, Berkeley (UC Berkley) with funds obtained from an initial US$11.5 million donation by the Paul G. Allen Family Foundation, the project completed the first phase of construction and become operational on 11 October 2007 with 42 antennas (ATA-42), after Paul Allen (co-founder of Microsoft) pledged an additional $13.5 million to support the construction of the first and second phases.Though overall Allen has contributed more than $30 million to the project, the project has not succeeded in building the 350 six metre (19.7 feet) dishes originally conceived, and suffered an operational hiatus due to funding shortfalls between April and August 2011. Subsequently, UC Berkeley exited the project, completing divestment in April 2012. The facility is now managed by SRI International (formerly Stanford Research Institute), an independent, nonprofit research institute.In August 2014 the installation was threatened by a forest fire in the area and was briefly forced to shut down, but ultimately emerged largely unscathed.