... ESO is building what will be the World's largest optical telescope array, The Very Large Telescope (VLT). The VLT Project organisation is responsible for the design and construction of the Unit Telescopes, including enclosures, optics, adapter-rotators and coating unit. ... Unit Telescopes Overview - This page is outdated, an update is in process. ... Secondary mirror (M2 Unit) - This page is outdated, an update is in process. ... Coating Unit - This page is outdated, an update is in process. ...

Sloan Digital Sky Survey Telescope Technical Note 19970728 Edward J. Mannery and Walter Siegmund . ... Common corrector mount inspection . ... The corrector nearest the secondary mirror, the common corrector (so named because it is common to both imaging and spectroscopic configuations) is located with respect to the telescope optics support structure by the common corrector mount. ... The fused silica common corrector is 32.5 inches in diameter and is 0.47 inches thick. ...

. ATLAS is a project to image seven square degrees of sky, in two fields (CDF-S and ELAIS-S1), at radio wavelengths, to an rms of about 15 Jy, making it the widest deep radio survey aver attempted. The fields are chosen to cover the Spitzer Wide-Area IR Extragalactic Survey (SWIRE), and the radio images cut through the dust, to trace the cosmic history of AGN and star-forming galaxies. This page last updated by Ray Norris 5-Mar-2007

... 142,800 Mean density (kg/m^3) .. ... 5.203 Rotation period (length of day in Earth hours).. 9.8 Revolution period (length of year) (in Earth years). 11.86 Obliquity (tilt of axis) (degrees).. 3.08 Orbit inclination (degrees).. 1.3 Orbit eccentricity.. 0.048 Mean surface temperature (K)........................ 120 (cloud tops) Visual geometric albedo.. 0.44 Atmospheric components.............................. 90% hydrogen, 10% helium, .07% methane Rings.. ...

... The Large Magellanic Cloud is a Dwarf Irregular galaxy in orbit around our own Milky Way. It is a large object, several degrees in size, and easily visible to the unaided eye in Southern Hemisphere skies. The LMC is located in the constellation of Doradus at about 5h30m Right Ascension, -68 degrees Declination, and lies at a distance of roughly 50 kiloparsecs (160,000 light years) from Earth. ...

... UB313: Larger than Pluto . ... Credit: Thierry Lombry Explanation: What do you call an outer Solar System object that is larger than Pluto? ... The question arose recently when 2003 UB313 , an object currently twice as far out as Pluto and not in the plane with the rest of the planets, was verified recently to be 30 percent wider than Pluto . ... NASA Web Site Statements, Warnings, and Disclaimers . ... Публикации с ключевыми словами: Pluto - Solar System - Плутон - солнечная система . ...

... June 21, 1996 . A Very Large Array of Radio Telescopes . ... Explanation: Pictured above is one of the world's premiere radio astronomical observatories: The Very Large Array (VLA). ... The VLA is continually making new discoveries, including determining the composition of galaxies , passing comets , quasars , HII regions , and clusters of galaxies . The VLA is also used to receive the weak radio signals broadcast from interplanetary spacecraft . ... About APOD | ...

... The three optical trains for the cameras, and the pupil reimaging system, are mounted on a wheel, accurately driven by an external motor. ... The low-resolution spectroscopic mode uses the wide field camera and a suitable set of grisms and order sorting filters that are inserted in the parallel beam after the pupil. ... One of the five grisms can operate at four different orders, depending on the filter selected on the first filter wheel that acts as order sorter. ...

We present an analysis of the stellar kinematics of the Large Magellanic Cloud (LMC) based on ~5900 new and existing velocities of massive red supergiants, oxygen-rich and carbon-rich asymptotic giant branch (AGB) stars, and other giants. ... The metallicity differences provide strong evidence that the kinematically distinct population originated in the Small Magellanic Cloud. ...

... sin f = y / r . cos f = x / r . ... They are now viewed as new definitions of the sine and cosine, for the polar angle f given by x and y ( a slightly different way of formulating this definition is described further below ). ... sin 2 f + cos 2 f = 1 . ... Angle . ... Many trigonometry texts define the sine and cosine slightly differently, using the so-called unit circle . ... Then the distance AB ("the sine line") equals sin a , and the distance OA ("the cosine line") equals cos a . ...

. Album : Фотоальбом Сергея Аюкова :: Travels to distant places and countries :: 1997/08 Japan (Kyoto, Nara) :: 16/08 Arrived to Kyoto . Up . Kyoto tonight. Distorted due to large exposure without mounting. Photo album generated by album a Marginal Hack written by Dave Madison on Wed Jun 5 20:38:33 2013 .

... We can help students grasp the significance of Hubble's extremely keen eye, and learn a bit about angles and math in the process, with the following in-class activity. ... Looking through binoculars or telescopes allows us to magnify a small section of the sky. To measure sizes or distances in that small section, astronomers divide a degree into 60 smaller pieces called arcminutes, and further subdivide minutes into 60 smaller sections called arcseconds. ... 30 feet = . ... 36 seconds . ...

In order to measure the density of the Universe, it is necessary to sample a region that is larger than the scale on which the Universe becomes approximately homogeneous. ... When applied to clusters of galaxies we find a mass to luminosity ratio that implies a density of the Universe that is about 0.3 times the critical density. ... Thus the mass-to-muinosity ratio appears to vary with the size of the region measured, from 3 in the solar neighborhood to 30 in galaxies to 300 in clusters of galaxies. ...

... According to the most popular cosmological paradigm, the greater part of the galaxy mass is accumulated in the dark matter halo. ... The polar ring galaxies (PRGs) reveal external rings or disks of gas, dust and stars rotating in a plane roughly perpendicular to the disk of the central galaxy. ... The shape of the dark halo in the model was chosen so as to achieve the best fit to the observed rotation of both galaxies themselves and their polar rings. ... The SPRC-7 galaxy. ...

... We have studied scaling relations (virial mass versus CO luminosity, luminosity versus size, linewidth versus size) for molecular clouds in the 30 Dor and N 159 regions in the Large Magellanic Cloud. ... The study of molecular clouds in the Galaxy has resulted in a number of scaling relations between global cloud properties such as mass, density, luminosity, size and velocity dispersion (e.g. Larson (1981) , Scoville & Sanders (1987) , Solomon et al. ... Elmegreen B.G., 1989, ApJ , 338 , 178. ...

... Tonight's Sky . ... The Magazine . ... Observing . ... Magazine . ... Gravitational wave search provides insights into galaxy evolution and mergers . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... large (8 inches or larger) . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Astronomy Magazine . ...

... The British consortium, currently led by Professor Gordon Bromage of the University of Central Lancashire , includes the Universities of Keele , Nottingham and Southampton , the Open University and Armagh Observatory and will be joining the other partners in the SALT project, from South Africa, Poland, Germany, USA and New Zealand. ... SALT Dome . ... The SALT project is managed by a team based at the SALT Headquarters at Sutherland and South African Astronomical Observatory in Cape Town. ...

... Comparison of simulations with the large scalтАж . Sidebar Left . Sidebar Top . ... Title: Comparison of simulations with the large scale radio galaxy M87. Description: Comparison between a snapshot from Movie 2 (left panel) with the large scale radio structure of the famous radio galaxy M87. ... Comparison of simulations with the large scale radio galaxy M87. Comparison between a snapshot from Movie 2 (left panel) with the large scale radio structure of the famous radio galaxy M87. ...

... Today this year's largest group of sunspots will cross the Sun's central meridian. ... The next day, the number of spots in the group reached five, and the day after, on June 2nd, it was possible to count thirteen sunspots on solar disk, which had been clear prior to this. ... This year's two most powerful active areas, which passed across the solar disk at the beginning of May, 2009, are set to appear in the Sun's eastern sector in two days, on June 6th. ...

... Фитнес-браслет Jawbone UP24 Large, Розовый . Jawbone . ... Артикул: CALLAS_PEACOCK_BLUE PETROL Цвет: сине-зеленый Состав: 65% полиэстер, 35% хлопок Особенности: стильный пуловер с длинным рукавом свободного кроя. ... Тип: подвесная, . ... Тип лампы: накаливания, . ... Цвет арматуры: матовый никель, . ... Цвет плафонов и подвесок: белый с рисунком, золото, неокрашенный . Цвет арматуры: золото . Тип поверхности плафонов и подвесок: матовый . Тип поверхности арматуры: глянцевый . ...