... (FWHM<0.3" on some images, uniform over the FoV). 50% of the images reach an imaging quality better than 0.5 arcsec in Ks; best periods of seeing are mostly dedicated to the two other AO instruments located on the same telescope, which prevents Hawk-I from delivering even better performances. To ben ...
LaPalma_telescopes_2008
... severe case of distortion more than 200 pixels at the corners. Large skew. ...
... severe case of distortion more than 200 pixels at the corners. Large skew. ...
User`s Manual (Updated 9
... astigmatism and coma are produced, with the total amount proportional to the beam f/number and thickness of the glass. In the WTTM the path to the error sensor passes through some 12 mm of glass at an incidence of approximately 45 degrees. The compensator element corrects for all the spherical and c ...
... astigmatism and coma are produced, with the total amount proportional to the beam f/number and thickness of the glass. In the WTTM the path to the error sensor passes through some 12 mm of glass at an incidence of approximately 45 degrees. The compensator element corrects for all the spherical and c ...
$doc.title
... Remote access to digital sky survey (DSS) images is integrated into FACSUM and downloaded images may be displayed directly in DS9 (providing on the fly finder charts). The JSkyCalc program written b ...
... Remote access to digital sky survey (DSS) images is integrated into FACSUM and downloaded images may be displayed directly in DS9 (providing on the fly finder charts). The JSkyCalc program written b ...
TMT Scientific Information Brochure
... National Astronomical Observatories of the Chinese Academy of Sciences ...
... National Astronomical Observatories of the Chinese Academy of Sciences ...
The Propagation of Light in Moving Transparent solid substances. I
... along the guides the intel'fel'ence fl'inget. did not l'emain stationary, but changed with l'egard to distance and slope. When the appat'atu::; had first been put togethet', this movement of the bands was very great. It is clear that it mnst also orcur fol' a perfectly homogeneous column bounded by ...
... along the guides the intel'fel'ence fl'inget. did not l'emain stationary, but changed with l'egard to distance and slope. When the appat'atu::; had first been put togethet', this movement of the bands was very great. It is clear that it mnst also orcur fol' a perfectly homogeneous column bounded by ...
Symposium on Telescope Science - Society for Astronomical Sciences
... This volume contains the proceedings of the 21st Conference of the IAPPP-Western Wing, Inc., which was held May 22 and 23, 2002 at the Northwoods Resort in the city of Big Bear Lake, California. The title chosen to set the theme of this year’s meeting was the Symposium on Telescope Science and much ...
... This volume contains the proceedings of the 21st Conference of the IAPPP-Western Wing, Inc., which was held May 22 and 23, 2002 at the Northwoods Resort in the city of Big Bear Lake, California. The title chosen to set the theme of this year’s meeting was the Symposium on Telescope Science and much ...
High-power, passively Q-switched microlaser
... absorption, which inevitably leads to longer pulse durations. An alternative approach is the use of a MOPA design with a microlaser oscillator and multipass amplifier [3]. In the only reported work to date on this approach, a MOPA system operated in the 10-|iJ range, producing 500-ps pulses [4]. We ...
... absorption, which inevitably leads to longer pulse durations. An alternative approach is the use of a MOPA design with a microlaser oscillator and multipass amplifier [3]. In the only reported work to date on this approach, a MOPA system operated in the 10-|iJ range, producing 500-ps pulses [4]. We ...
Key Technologies Network
... WP5.1: Workshops & Roadmapping: Map astronomical science goals onto technologies already available and those requiring further development Identify links to implementation paths and funding sources. Investigate how European cooperation can help make significant advances in these areas. bring ...
... WP5.1: Workshops & Roadmapping: Map astronomical science goals onto technologies already available and those requiring further development Identify links to implementation paths and funding sources. Investigate how European cooperation can help make significant advances in these areas. bring ...
Minutes SSWG_2 - Space Astronomy Laboratory
... coatings) were comparable to the 4-mirror design. Darragh then presented the new 4-mirror design, which will make use of the LLNL overcoated silver for better response in the UV. The system is basically a Gregorian-inverse Cassegrain system, with a convex M4 mirror which corrects the field curvature ...
... coatings) were comparable to the 4-mirror design. Darragh then presented the new 4-mirror design, which will make use of the LLNL overcoated silver for better response in the UV. The system is basically a Gregorian-inverse Cassegrain system, with a convex M4 mirror which corrects the field curvature ...
Mission to Antartic
... But this seems to present higher costs in term of power (Watt on total budget) and weight (Kilograms that can be loaded on the telescope) ...
... But this seems to present higher costs in term of power (Watt on total budget) and weight (Kilograms that can be loaded on the telescope) ...
PDF only
... required demand, that is, a significantly stronger eyepiece with a standard (weak) objective. The implications are, 1. Contrary to the received view, an objective of 1.5 diopter is not a significantly long-focal-length lens. 2. Contrary to the received view, an eyepiece of 13.7 diopter is not a stan ...
... required demand, that is, a significantly stronger eyepiece with a standard (weak) objective. The implications are, 1. Contrary to the received view, an objective of 1.5 diopter is not a significantly long-focal-length lens. 2. Contrary to the received view, an eyepiece of 13.7 diopter is not a stan ...
Applying Silicon Carbide to Optics
... Design considerations The 1-m parabolic SiC mirror backface has a lightweight rib structure. ...
... Design considerations The 1-m parabolic SiC mirror backface has a lightweight rib structure. ...
MEGARA spectrograph for the GTC
... optical Integral-Field Units (IFU) and a set of robotic positioners for Multi-Object Spectroscopy (MOS) that will be installed at Folded-Cassegrain focus of the GTC (Gran Telescopio CANARIAS) 10.4-m telescope. The fibers will feed one (MEGARA-Basic) or two (MEGARA-Advanced) spectrographs to be place ...
... optical Integral-Field Units (IFU) and a set of robotic positioners for Multi-Object Spectroscopy (MOS) that will be installed at Folded-Cassegrain focus of the GTC (Gran Telescopio CANARIAS) 10.4-m telescope. The fibers will feed one (MEGARA-Basic) or two (MEGARA-Advanced) spectrographs to be place ...
dew/frost prevention
... the dew heaters! Also note wind speed: a slight breeze can reduce or eliminate dew. Monitor weather conditions ...
... the dew heaters! Also note wind speed: a slight breeze can reduce or eliminate dew. Monitor weather conditions ...
Resume - Kahan - Synopsys` Optical Solutions Group
... support to new business development, the setting of optical/design requirements, contract end item specifications, interface control drawings, design reviews, and support to test plans and procedures and selected breadboards. His project commitments have been extensive and include successful lead en ...
... support to new business development, the setting of optical/design requirements, contract end item specifications, interface control drawings, design reviews, and support to test plans and procedures and selected breadboards. His project commitments have been extensive and include successful lead en ...
Introduction - Arecibo Observatory
... mass, active stars, which cannot be studied efficiently through the radial velocity method, coronography, or optical interferometry.'' Current measurement errors are limited by the number of nearby compact sources that are well above the detection threshold of their observations and which can be us ...
... mass, active stars, which cannot be studied efficiently through the radial velocity method, coronography, or optical interferometry.'' Current measurement errors are limited by the number of nearby compact sources that are well above the detection threshold of their observations and which can be us ...
tmt.mtk.nao.ac.jp
... • Requiring extremely large optical components that have never been realized • A few % instrumental polarization due to reflection at tertiary mirror • Less image quality/sensitivity due to additional optical components ...
... • Requiring extremely large optical components that have never been realized • A few % instrumental polarization due to reflection at tertiary mirror • Less image quality/sensitivity due to additional optical components ...
Spring 2016 - Robert Ferguson Observatory
... which can be found on our website. (For these and all details mentioned here, use the “What’s Up in the Night Sky” link on our homepage.) In particular, there will be double shadow transits on 3/21, 3/28, 4/5, & 5/6. Jupiter will be very near the moon around 9pm on 3/21, 10pm on 4/17, 1am on 5/15, a ...
... which can be found on our website. (For these and all details mentioned here, use the “What’s Up in the Night Sky” link on our homepage.) In particular, there will be double shadow transits on 3/21, 3/28, 4/5, & 5/6. Jupiter will be very near the moon around 9pm on 3/21, 10pm on 4/17, 1am on 5/15, a ...
GM-8 manual-05.cdr
... Remove all the parts from their respective boxes and place them on a flat, clear work area. A large floor space is ideal. When setting up your Losmandy GM-8, you must start with the tripod and work from there. To insure proper assembly, each task must be performed in the specific order as defined by ...
... Remove all the parts from their respective boxes and place them on a flat, clear work area. A large floor space is ideal. When setting up your Losmandy GM-8, you must start with the tripod and work from there. To insure proper assembly, each task must be performed in the specific order as defined by ...
Chapter 37 . Mounting Optical Components
... may then be as large as Dr and the lens may tilt (or roll) within the mount through an angle θ r as large as 2Dr / tE in radians, where tE is the lens edge thickness in mm. The ring of Fig. 1a can be removed if necessary for maintenance purposes, but it is virtually impossible to remove that of Fig. ...
... may then be as large as Dr and the lens may tilt (or roll) within the mount through an angle θ r as large as 2Dr / tE in radians, where tE is the lens edge thickness in mm. The ring of Fig. 1a can be removed if necessary for maintenance purposes, but it is virtually impossible to remove that of Fig. ...
Laser guide star adaptive optics at the Keck Observatory
... Milestones and Deliverables First corrected images on NIRC2 with laser LGS AO facility operable by AO experts First LGS AO engineering science LGS AO observing strategy decision First shared-risk science First light engineering science paper LGS AO facility operable for science by OA and one expert ...
... Milestones and Deliverables First corrected images on NIRC2 with laser LGS AO facility operable by AO experts First LGS AO engineering science LGS AO observing strategy decision First shared-risk science First light engineering science paper LGS AO facility operable for science by OA and one expert ...
Syllabus
... Misconduct of any kind will be prosecuted and may result in any or all of the following: * Reduction of grade * Failing grade * Referral to the Dean of Students for consideration of additional penalty, i.e. notation on a student’s transcript re. academic integrity violation, etc. Students with a Lea ...
... Misconduct of any kind will be prosecuted and may result in any or all of the following: * Reduction of grade * Failing grade * Referral to the Dean of Students for consideration of additional penalty, i.e. notation on a student’s transcript re. academic integrity violation, etc. Students with a Lea ...
9. Telescope structure and kinematics
... provide sufficient bandpass for the motion control system as well as the required tracking accuracy and dimensional stability under varying gravity, thermal and wind loads. The achievable limits of structural eigen-frequencies impose that image stabilisation be implemented downstream in the optical ...
... provide sufficient bandpass for the motion control system as well as the required tracking accuracy and dimensional stability under varying gravity, thermal and wind loads. The achievable limits of structural eigen-frequencies impose that image stabilisation be implemented downstream in the optical ...
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.