... 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 Unit Telescopes Overview - This page is outdated, an update is in process.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 Secondary mirror (M2 Unit) - This page is outdated, an update is in process.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 Coating Unit - This page is outdated, an update is in process. ...

... The Milky Way - and the lights of CoonabarabrтАж . Sidebar Left . Sidebar Top . No Sidebar . ... Title: The Milky Way - and the lights of Coonabarabran - behind the dome of the ANU 40-inch telescope. Description: The dome of the UK Schmidt telescope is just to the right of the town lights. ... The Milky Way - and the lights of Coonabarabran - behind the dome of the ANU 40-inch telescope. The dome of the UK Schmidt telescope is just to the right of the town lights. ...

ALBUM: gba @ SONG : Leave them all behind Leave Them All Behind Wheels turning around Into alien grounds Pass through different times Leave them all Behind Just to see We've got so far to go Until we get there Just let it flow Colours shining clear Fading into night Our grasp is broken There's nothing we can do I Don't care about the colours ... SONG: BENEATH Rise above the rain, For all our sins we're not to blame, This time will pass away not yours or mine. ...

... Bad Astronomy . Misconceptions . ... Bad Astronomy : "We're light years more advanced than our competition!" ... Even the closest astronomical object, the Moon, is 400,000 kilometers away! ... A beam of light will travel 9,500,000,000,000 kilometers in one year. This distance is defined as a light year ; the distance light travels in a year. ... This is another example of Bad Astronomy; like a light year, a parsec is a unit of distance, not time (to be specific, it equals 3.26 light years) . ...

... A wonderful site where the debate about the nature of light sits. ... Shadow and Light science activities - A short list of activities for students about light and shadow designed by an undergraduate Education major in New Foundland. ... Projecting Shadows - Fantastic interactive site about how to make shadows from the Light/Block/Shadow technique. ... The Energy Story: Solar Energy - Aimed towards children, this is a short introduction about solar energy. ... You Light Up My Life | ...

Tired light models invoke a gradual energy loss by photons as they travel through the cosmos to produce the redshift-distance law. ... The tired light model can not produce a blackbody spectrum for the Cosmic Microwave Background without some incredible coincidences. ... So the CMB must have come from a far away part of the Universe, and its photons will thus lose energy by the tired light effect. ... Assume that the CMB starts out as a T = (1+z)*T_o = 2.998 K blackbody, which is the blue curve. ...

... SCIENCE AND BUSINESS . Such a trifle as a starry night sky of largest observatories turned out to be a small change coin in commercial bargains for exclusive communal services in Russia, and for a few elite flats in penthouses in Ukraine. SCIENCE AND BUREAUCRATISM . ... Till in Russian) . ... Clericalization of science and education (Till in Russian). ... Researcher of the Sternberg Astronomical Institute, The Moscow University. ... SAI home page . ... October, 2008) . ... November, 2007) . ...

Villains and Heroes of Lights and Lighting Fixtures . If we are to reduce the effects of light pollution, we must learn about the types, both good and bad, of fixtures used in outdoor lighting. ... In fact, this type of fixture is often chosen for this very reason. ... Although these lamps are not very energy efficient, and they are often found in older, inefficient fixtures that enhance light pollution, they still exist in great abundance in most locations and are still sold by the millions. ...

Astronomy Picture of the Day . ... 18.12.2013 . ... In most places on Earth, a lucky viewer can see a Sun-pillar , a column of light appearing to extend up from the Sun caused by flat fluttering ice-crystals reflecting sunlight from the upper atmosphere. Usually these ice crystals evaporate before reaching the ground. ... These ice crystals may then reflect ground lights in columns not unlike a Sun-pillar . ... Publications with keywords: ice crystals . Publications with words: ice crystals . ...

... 2013 December 18 . Light Pillars over Finland . ... In most places on Earth, a lucky viewer can see a Sun-pillar , a column of light appearing to extend up from the Sun caused by flat fluttering ice-crystals reflecting sunlight from the upper atmosphere. Usually these ice crystals evaporate before reaching the ground. ... These ice crystals may then reflect ground lights in columns not unlike a Sun-pillar . ... Free lecture: APOD editor to speak in NYC on Jan. ... About APOD | ...

Eliminating Light Pollution . ... Low Pressure Sodium . ... Low Pressure Sodium bulbs are the most efficant, use the least energy in producing light and have very low running costs. ... Because of this Low Pressure Sodium lighting is only suitable for places like streetlights, security lighting or floodlighting where colour definition is not important. ... It is very efficant, being second only to Low Pressure Sodium Lights. ... Both the luminaires shown above use high pressure sodium lights. ...

... Tonight's Sky . ... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... The Magazine . ... Observing . ... The double star 54 Leonis, spiral galaxy NGC 3198, and emission nebula NGC 3199 . ... Astronomy for Kids . ... Sky Guide . ... Guiding the light . ... Get instant access to subscriber content on Astronomy.com! ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ... Click here to receive a FREE e-Guide exclusively from Astronomy magazine. ...

Please enter the lightcurve file name and period search parameters: . Lightcurve file: . ... Apply the Heliocentric correction and convert all dates to Terrestrial Time (TT)? ... Also, the Heliocentric correction cannot be applied to such lightcurves. ... This period search service is also available at the mirror sites: Mirror 1 , Mirror 2 , Mirror 3 , Mirror 4 . You may download the latest source code distribution and install the period search service at your own web server. ...

... The light baffles consist of the wind baffle that surrounds the telescope and doubles as a light baffle, the primary baffle that extends from the primary center-hole toward the secondary (left), the secondary baffle that extends from the perimeter of the secondary toward the primary (right), and the conical baffle that is suspended approximately halfway between the primary and secondary (middle). The wind baffle is covered with panels that are 25% porous to the wind. ...

... B data of V 616 Mon (A 0620-00) # in UBV system - calculated by Shugarov from photgraphic values, # observed in Krimea # Ref : Переменные звезды 20, 251-254 , 1976 # Ref : Peremennye zvezdy 20, 251-254 , 1976 # Ref : Variable Stars 20, 251-254 , 1976 # translated to LF by G.V.Lipunova # LF = log flux flux = erg/cm^2/sec # 1=day, JD; 2=B; 3=error(1 sigma); 4=B,LF; 5=B-error,LF # 1 2 3 4 5 #2421614.225 12.39* 0.1 2442661.576 11.58 ...

RTT150 . ... The primary mirror 1 reflects light to the secondary mirror 2 which collects it on the focal surface of system with the linear field of 30 mm diameter. Focal length, mm . ... Linear field of view, mm . ... Angular field of view . ... Concentration of light energy at 632.8 nm wavelength . on the optical axis within the circles of diameter: . 0.036 mm, %, at least . ... 0.060 mm, %, at least . ...

... Обзор LPR фильтра. Впечатления от наблюдений с LPR фильтром. ... Характеристики цветных фильтров Baader-Planetarium . Мой перевод pdf- файла о фильтрах с сайта Baader-Planetarium (379 кб) . ...

... HST Overview . Overview . ... ID: Scattered Ligth Tables (_cds,_ech,_exs,_hal,_rip,_srw,_tel) . to be used with the Echelle Scatterd Light Correction Software. ... INFLIGHT 01/04/1996 11/02/1999 . Oct 01 1996 00:00:00 . Cross-disperser scattering table . Jan 02 2001 . ... Echelle grating scattering table . ... Echelle cross-dispersion scattering table . ... INFLIGHT 27/02/1997 03/06/1998 . ... Echelle ripple (blaze) table . ... GROUND 01/10/1996 . ... Jan 02 2001 Copyright | ...

Next: Generation from In-Orbit Data Up: ZODIACAL Previous: Description Contents . ... The intensity of the spectrum is scaled to the reference intensity. ... The binary table ZODIACAL_CTS lists the expected photon rates for the different filters at the reference intensity. ... keyword . ... name . ... may vary . ... degree] x-coordinate of reference bin . ... bin] address of reference bin x-direction . ... reference intensity of spectrum [S10(V)] . ... zodiacal light flux at reference intensity . ...

... NASA's Hubble Space Telescope has provided a never-before-seen view of a warped disk flooded with a torrent of ultraviolet light from hot gas trapped around a suspected massive black hole. ... This composite image of the core of the galaxy was constructed by combining a visible light image taken with Hubble's Wide Field Planetary Camera 2 (WFPC2), with a separate image taken in ultraviolet light with the Faint Object Camera (FOC). ... The inset box shows Hubble Space Telescope's field of view. ...