Moscow State University Sternberg Astronomical Institute
... provided. Two main Nasmyth stations are located at the central holes of the elevation axles and two additional (“student ports”) are oriented at 90 and 270 degrees with respect to the elevation axis. First main Nasmyth station N1 must provide the unvignetted field of view (FOV) 40 arcmin in diameter ...
... provided. Two main Nasmyth stations are located at the central holes of the elevation axles and two additional (“student ports”) are oriented at 90 and 270 degrees with respect to the elevation axis. First main Nasmyth station N1 must provide the unvignetted field of view (FOV) 40 arcmin in diameter ...
RADIO POLARIZATION OF THE YOUNG HIGH–MAGNETIC
... some cases giving rise to one or more pulses that lead or trail the beam center (Lyne & Manchester 1988). One possible geometric interpretation of the phenomenology of pulsar polarization profiles is that emission can come from either core or conal beams. While a core beam is a narrow, solid cone of ...
... some cases giving rise to one or more pulses that lead or trail the beam center (Lyne & Manchester 1988). One possible geometric interpretation of the phenomenology of pulsar polarization profiles is that emission can come from either core or conal beams. While a core beam is a narrow, solid cone of ...
Studying gas in disks
... • GSMT will detect & classify Jovian mass planets, from ‘roasters’ to ‘old, cold’ Jupiters located at ~ 5AU for stars at d < 10 pc • Via photometry (R ~10) and low resolution spectroscopy (R ~200) • Requires star suppression ~ 107 ...
... • GSMT will detect & classify Jovian mass planets, from ‘roasters’ to ‘old, cold’ Jupiters located at ~ 5AU for stars at d < 10 pc • Via photometry (R ~10) and low resolution spectroscopy (R ~200) • Requires star suppression ~ 107 ...
The TMT LGSF Launch Telescope Assembly System
... top end structure by up to ±15 mm in translation，± 2.5 mrad in tilt and ± 4 mm in axial motion over the operating zenith angles between 1 and 65 degrees and at any observing temperature. ...
... top end structure by up to ±15 mm in translation，± 2.5 mrad in tilt and ± 4 mm in axial motion over the operating zenith angles between 1 and 65 degrees and at any observing temperature. ...
The Giant Magellan Telescope
... Figure 89. (Left) Five beams projected on a 1 arcmin radius from a single 15–Watt laser using a custom hologram. The beams are seen here on the bottom of cloud. (Center) Images of the Rayleigh beacons gated between 20 – 30 kilometers without dynamic refocus. The streaking is caused by perspective FW ...
... Figure 89. (Left) Five beams projected on a 1 arcmin radius from a single 15–Watt laser using a custom hologram. The beams are seen here on the bottom of cloud. (Center) Images of the Rayleigh beacons gated between 20 – 30 kilometers without dynamic refocus. The streaking is caused by perspective FW ...
Chapter 3
... focuses light at different distances along the optical axis. This is known as chromatic aberration. • To correct for chromatic aberration it is necessary to use an objective composed two or three elements • Refracting telescopes need to be very long (large focal length), with large, heavy lenses. • ...
... focuses light at different distances along the optical axis. This is known as chromatic aberration. • To correct for chromatic aberration it is necessary to use an objective composed two or three elements • Refracting telescopes need to be very long (large focal length), with large, heavy lenses. • ...
슬라이드 1
... We present UBVI CCD photometry of unstudied open cluster Teutsch7. This object is listed in the open cluster catalog(Dias et al 2002), but only their coordinate and size were known. The observation was performed at maidanak observatory, and we find about 420 stars of cluster's member in V filter pho ...
... We present UBVI CCD photometry of unstudied open cluster Teutsch7. This object is listed in the open cluster catalog(Dias et al 2002), but only their coordinate and size were known. The observation was performed at maidanak observatory, and we find about 420 stars of cluster's member in V filter pho ...
Optics requirements for the Generation-X x
... There are approaches to controlling those errors. ...
... There are approaches to controlling those errors. ...
Ch 5 notes on telescopes
... focusing it to form an image to study. However, as telescopes become larger and larger there are several important factors to consider when selecting one optical telescope over another. Read page 110 to help you decide which one of the two is better. Give reasons why. ...
... focusing it to form an image to study. However, as telescopes become larger and larger there are several important factors to consider when selecting one optical telescope over another. Read page 110 to help you decide which one of the two is better. Give reasons why. ...
Realization of X-ray telescopes—from design to
... this particular type of X-ray telescope. The optical principle is very similar to Schmidt’s focusing collimator when shifting and merging the upper and lower mirror stacks of Schmidt’s device into one section forming square-sided tubes. Both in the Schmidt and the Angel design there are rays passing ...
... this particular type of X-ray telescope. The optical principle is very similar to Schmidt’s focusing collimator when shifting and merging the upper and lower mirror stacks of Schmidt’s device into one section forming square-sided tubes. Both in the Schmidt and the Angel design there are rays passing ...
CONSTELLATION TELESCOPIUM THE TELESCOPE Telescopium
... skopeo or skeptomai, to look at or view. It is an optical instrument for making distant objects appear nearer and larger. It consists of tubes with an arrangement of lenses, or of one or more mirrors and lenses, by which the rays of light are collected and brought to a focus and the resulting image ...
... skopeo or skeptomai, to look at or view. It is an optical instrument for making distant objects appear nearer and larger. It consists of tubes with an arrangement of lenses, or of one or more mirrors and lenses, by which the rays of light are collected and brought to a focus and the resulting image ...
Click here to view Carolyn`s poster
... A support structure was designed to ensure that distortions due to gravity would be kept to a minimum. Figure 5 shows the proposed aluminium support structure and on top of two foam strips the prototype will be placed. Figure 6 highlights the effect due to gravity experienced by the prototype. ...
... A support structure was designed to ensure that distortions due to gravity would be kept to a minimum. Figure 5 shows the proposed aluminium support structure and on top of two foam strips the prototype will be placed. Figure 6 highlights the effect due to gravity experienced by the prototype. ...
SALTeNEWS_9
... The coming months should see the full commissioning of the recently installed auto-guidance and autofocussing systems (see Fig. 8) and installation of the remaining payload subsystem, culminating in the installation of SALTICAM ACSI mode by the end of Jan 2005. The Telescope Control System (TCS), wh ...
... The coming months should see the full commissioning of the recently installed auto-guidance and autofocussing systems (see Fig. 8) and installation of the remaining payload subsystem, culminating in the installation of SALTICAM ACSI mode by the end of Jan 2005. The Telescope Control System (TCS), wh ...
The Infrared Astronomical Mission AKARI
... for scanning the sky while keeping the telescope direction away from the Sun and the Earth whose strong emission would be ruinous for the cooled telescope. Just after the launch, it was found that the Sun aspect sensors could not detect the Sun properly. The cause of this problem is still unknown to ...
... for scanning the sky while keeping the telescope direction away from the Sun and the Earth whose strong emission would be ruinous for the cooled telescope. Just after the launch, it was found that the Sun aspect sensors could not detect the Sun properly. The cause of this problem is still unknown to ...
No Slide Title
... • To understand how to do astronomical observations with AO – Planning, reducing, and interpreting data (your own data, but perhaps more importantly other people’s data) – Some of this will apply to AO for vision science as well ...
... • To understand how to do astronomical observations with AO – Planning, reducing, and interpreting data (your own data, but perhaps more importantly other people’s data) – Some of this will apply to AO for vision science as well ...
Active primary mirror support for the 2.1-m
... of the mean deformations in the mirror, which are mainly due to the mirror’s hanging between supports. Additional deformations are produced by shear forces at the position of the supports. These can increase the mean bending deformations by a factor of 2, but they are reduced substantially when the ...
... of the mean deformations in the mirror, which are mainly due to the mirror’s hanging between supports. Additional deformations are produced by shear forces at the position of the supports. These can increase the mean bending deformations by a factor of 2, but they are reduced substantially when the ...
Performance Improvement of a Flexible Telescope Through
... mechanical behavior of the telescope structure can be studied from thermal model calculations, which use as input a realistic thermal state of the environment [13]. The influence of wind on a telescope is investigated in a similar exploratory FBA using for the wind force distribution across the tele ...
... mechanical behavior of the telescope structure can be studied from thermal model calculations, which use as input a realistic thermal state of the environment [13]. The influence of wind on a telescope is investigated in a similar exploratory FBA using for the wind force distribution across the tele ...
Skyscraper How to Color the Universe by Kim Arcand the
... importance of one item that may not have been noticed by many of you. Two Members mentioned to a Board member this year that they did not understand why we have so many star parties and they thought we should do less of that and devote those volunteer hours to something else. Those are reasonable qu ...
... importance of one item that may not have been noticed by many of you. Two Members mentioned to a Board member this year that they did not understand why we have so many star parties and they thought we should do less of that and devote those volunteer hours to something else. Those are reasonable qu ...
Guide to Polar Alignment of a Meade LX200GPS Telescope
... definitely want to operate your telescope in “Polar” mode. Alt-Azimuth is fine for general eyepiece observing or short exposure photos of the moon, sun and planets. For the purposes of this guide, we will limit the discussion to Polar Alignment. Since our early learning, we know that the Earth spins ...
... definitely want to operate your telescope in “Polar” mode. Alt-Azimuth is fine for general eyepiece observing or short exposure photos of the moon, sun and planets. For the purposes of this guide, we will limit the discussion to Polar Alignment. Since our early learning, we know that the Earth spins ...
By the time astronomers got a big telescope into orbit, they
... Astronomers measure resolution in angles, in units called minutes of arc or seconds of arc; 60 seconds is one minute, and 60 minutes is one degree. In these units human eyes can resolve two points separated by one arc minute. For years astronomers thought that the resolution of which an optical tele ...
... Astronomers measure resolution in angles, in units called minutes of arc or seconds of arc; 60 seconds is one minute, and 60 minutes is one degree. In these units human eyes can resolve two points separated by one arc minute. For years astronomers thought that the resolution of which an optical tele ...
Astronomytests a
... diagonal. Then position the collimator at the proper distance as described in the instructions. Proper distance for my setup was right around one tube length. Next, co-align the collimator and telescope. I found this to be the most timeconsuming part of the procedure. But don’t skimp here. Make cert ...
... diagonal. Then position the collimator at the proper distance as described in the instructions. Proper distance for my setup was right around one tube length. Next, co-align the collimator and telescope. I found this to be the most timeconsuming part of the procedure. But don’t skimp here. Make cert ...
Meade 60AZ
... 5. Allow a few minutes for your eyes to become “dark adapted” prior to attempting any serious observations. Use a red-filtered flashlight to protect your night vision when reading star maps, or inspecting components of the telescope. Tip: You can make your own red filtered flashlight by taping red c ...
... 5. Allow a few minutes for your eyes to become “dark adapted” prior to attempting any serious observations. Use a red-filtered flashlight to protect your night vision when reading star maps, or inspecting components of the telescope. Tip: You can make your own red filtered flashlight by taping red c ...
The European Extremely Large Telescope (E-ELT)
... been working within the FP6 ELT Design Study programme, and within the Project Office, to develop both a phasing methodology and the requisite sensors. The active phasing experiment will test different phasing sensors on a small segmented mirror. It is to be mounted at the visitor focus of the VLT ...
... been working within the FP6 ELT Design Study programme, and within the Project Office, to develop both a phasing methodology and the requisite sensors. The active phasing experiment will test different phasing sensors on a small segmented mirror. It is to be mounted at the visitor focus of the VLT ...
template
... by the European industry with an acceptable level of risk. • The SAFARI instrument can rely on significant heritage and expertise with the consortium (e.g. SPIRE, PACS). • The provision of MOC and SOC services by ESA does not present any critical issues. The European contribution to SPICA is a real ...
... by the European industry with an acceptable level of risk. • The SAFARI instrument can rely on significant heritage and expertise with the consortium (e.g. SPIRE, PACS). • The provision of MOC and SOC services by ESA does not present any critical issues. The European contribution to SPICA is a real ...
The wide field upgrade for the Hobby-Eberly Telescope
... The HET is operating close to its original specifications, and in many areas, such as mirror alignment hold time, it significantly exceeds specifications. One important performance exception has been the delivered image quality. While much improved over recent years, over the past 12 months the HET ...
... The HET is operating close to its original specifications, and in many areas, such as mirror alignment hold time, it significantly exceeds specifications. One important performance exception has been the delivered image quality. While much improved over recent years, over the past 12 months the HET ...
Arecibo Observatory
The Arecibo Observatory is a radio telescope in the municipality of Arecibo, Puerto Rico. This observatory is operated by SRI International, USRA and UMET, under cooperative agreement with the National Science Foundation (NSF). This observatory is also called the National Astronomy and Ionosphere Center, although ""NAIC"" refers to both the observatory and the staff that operates it. From its construction in the 1960s until 2011, the observatory was managed by Cornell University.The Observatory's 1,000 ft (305 m) radio telescope is the world's largest single-aperture telescope. It is used in three major areas of research: radio astronomy, atmospheric science, and radar astronomy. Scientists who want to use the Arecibo Telescope submit proposals that are evaluated by an independent scientific board.The Radio Telescope has made appearances in motion picture and television productions, gaining more recognition in 1999 when it began to collect data for the SETI@home project. It has been listed on the American National Register of Historic Places beginning in 2008. It was the featured listing in the National Park Service's weekly list of October 3, 2008. The Center was named in IEEE Milestone in 2001. It has a visitors center that is open part time.