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 Unit Telescopes Overview - This page is outdated, an update is in process.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 Secondary mirror (M2 Unit) - This page is outdated, an update is in process.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 Coating Unit - This page is outdated, an update is in process.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

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• ESO - The European ELT

Jupiter's volcano-pocked moon Io has been found by NASA's Galileo spacecraft to have a giant iron core that takes up half its diameter, scientists report in today's issue of Science magazine. The spacecraft also has detected a large "hole" in Jupiter's magnetic field near Io, leading to speculation about whether Io possesses its own magnetic field. ... Galileo scientists also are trying to determine the cause of the hole they found in Jupiter's magnetic field when the spacecraft was closest to Io. ...

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• Galileo Crosses Boundary Into Jupiter's Environment
• Jupiter's Moon Ganymede
• The Io Dynamo

Galileo Finds Giant Iron Core in Jupiter's Moon Io . Jupiter's volcano-pocked moon Io has been found by NASA's Galileo spacecraft to have a giant iron core that takes up half its diameter, scientists report in today's issue of Science magazine. The spacecraft also has detected a large "hole" in Jupiter's magnetic field near Io, leading to speculation about whether Io possesses its own magnetic field. If so, it would be the first planetary moon known to have one. ... Space History Galileo . ...

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• Voyager
• Hubble Finds Oxygen Atmosphere On Jupiter's Moon Europa
• Saturn's Moon Titan

NASA Press Release Text - June 24, 1996 GALILEO READY FOR CLOSE FLYBY OF JUPITER'S BIGGEST MOON Now residing in orbit around Jupiter, NASA's Galileo spacecraft is primed for its first close flyby of Jupiter's largest moon, Ganymede, at 2:29 a.m. EDT on June 27, 1996. ... In the days just before and after the Ganymede flyby, Galileo's other studies will include a search for auroral activity on Jupiter's nightside and observations of other Jovian moons: Io, Europa and Callisto. ...

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• APOD: 2000 June 20 - Ganymede: The Largest Moon in the Solar System
• APOD: Galileo Views Ganymede
• APOD: January 9, 1997 - Hazing Jupiter

... In summer 1994, the biggest news in astronomy was the collision of comet Shoemaker-Levy 9 with Jupiter. During this school year, Jupiter will charge back into the limelight with the arrival of the Galileo spacecraft (see figure 8 ). On Dec. 7, following a tortuous six-year ramble through the solar system, Galileo will begin its two-year mission studying Jupiter and its gaggle of moons. ... Besides the camera, Galileo will carry instruments capable of identifying minerals on Jupiter's moons. ...

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• ASP: Science@Saturn: Cassini-Huygens Mission to Saturn and Titan
• ASP: The Comet About to Smash into Jupiter
• ASP: A Good Definition of the Word "Planet": Mission Impossible?

... Recherche dans le site : . Ciel Espace, le magazine qui vous guide toujours plus loin . ... Ciel Espace, nouvelle formule, c'est . ... Accueil Challenge Photo Jupiter en 2014. Fichiers de 2000 pix de large maxi, et sans caractГЕres spГ©ciaux dans les noms). ... Jupiter en 2014. ... Etat du ciel . ... Espace annonceurs . ...

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• Ils photographient le ciel au Very Large Telescope | Ciel et Espace
• Le Very Large Telescope film?й en 3D | Ciel et Espace
• Plan large sur la Lagune | Ciel et Espace

... Blue Sun Glaring . ... The Sun is a bubbling ball of extremely hot gas. ... On the left is a normal star field containing the constellation Orion. ... A Wolf-Rayet Star Blows Bubbles . ... Wolf-Rayet stars can blow bubbles. ... Wolf-Rayet stars generate bubbles because they continually eject their outer atmosphere as a stellar wind. ... The main suspect is the Wolf-Rayet star in the center of one of the bubbles - visible slightly below and to the right of the center of the above photograph. ...

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... A dynamo is created in a magnetic field by an electric circuit, part of which is moving relative to the rest (additional conditions must also be met). ... Furthermore, the plasma between them conducts electricity very well along its magnetic field lines, which act as if they were wires connecting Io and the planet (drawing). ... The drawing is not to scale. ... The Hubble Space Telescope , using its Wide Field and Planetary Camera 2, has been photographing auroras of the planet Jupiter. ...

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• The Sun -- History
• Arcad Instruments
• The Wind Spacecraft

... A team of Japanese scientists including Armagh astronomer Dr David Asher have announced the discovery of the second largest known Earth-crossing asteroid. The group is based at the new Japanese Spaceguard Centre at Bisei, west of Osaka. ... The subsequent tracking and orbit determination was assisted by Armagh asteroid expert David Asher, who is currently visiting Japan to help in the setting up of the new Spaceguard Centre funded by the Japanese government. ...

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• Southern African Large Telescope (SALT)
• Armagh Observatory
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Astronotes Armagh Planetarium's Stellar Blog! ... Armagh Planetarium . ... Solar System . ... Moon . ... Space Flight . ... Earth Satellites . ... Concept Spacecraft . ... Monthly Sky Notes . ... This image of Earth (left) and the Moon (right) was taken by the Juno space probe's JunoCam, three weeks after its 5 August launch. (image credit:: NASA / JPL / MSSS) . ... Earth and the Moon form a тАЬdouble planetтАЭ unique in the Solar System. ... Subscribe to Astronotes . ...

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• ALMA Antennae sees Antennae Galaxies | Astronotes
• Kepler-11: a strange and crowded planetary system | Astronotes
• How to see exoplanets! | Astronotes

... Same Visit, No Rotation, Large Shift . ... Data . ... HST Overview . Overview . ... Retrieving HST Data . ... Data Analysis . ... This IDCTAB contains uniquely computed distortion solutions for 10 filters: F225W, F275W, F336W, F390W, F43W, F555W, F606W, F775W, F814W, and F850LP. All other filters use the values for F606W. This test is designed to determine how the IDCTAB deals with a large shifts. ... F606W . ... X RMS Y RMS Vec Mag RMS Vec Mag Mean Vec Mag Median Vec Mag Max Vec Mag Min . ...

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• Advanced Technology Large-Aperture Space Telescope
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... 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 . ...

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• New Mars mission to probe planet's climate history | Astronomy.com
• ESA chooses instruments for its Jupiter ICy moons Explorer | Astronomy.com
• NASA spacecraft to enter large asteroid's orbit July 16 | Astronomy.com

... MILT Description . ... Telescope Control System . ... Biblography The Astrophysical Research Consortium (ARC) consists of astronomers at the following institutions: University of Washington, University of Chicago, New Mexico State University, Princeton University, and Washington State University. ... In addition some advancement in the art and engineering of large telescopes will be pursued. The telescope design itself is one of three major project tasks. ...

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• MILT Description

... 11 Yellow-Green (78% transmission): Contrasts well with the red and blue characteristics of surface features on Jupiter and Saturn. ... 82A Light Blue (73% transmission): Useful on the Moon, Mars, Jupiter, and Saturn, this subtle pale blue filter enhances areas of low contrast while avoiding significant reduction of overall image brightness. ... Meade Series 4000 Photo-Visual Color Filters may be ordered individually or in the following sets: . ... Meade Series 4000 Broadband Nebular Filters . ...

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• Meade Instruments Corporation - Choosing A Telescope
• Meade Instruments - Telescopes, Solar Telescopes, Binoculars, Spotting Scopes
• Meade Instruments Corporation - Pictor Manual Part 16

... 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.. ...

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• Cosmological Issues for Theorists
• CCDs for Material Scientists
• The Galaxy Gallery: Messier Objects

. 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

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• Large Southern Array Project
• Multi-Wavelength View of the Interstellar Medium in the Large Magellanic Cloud
• Small_scope_radio_jove

... Special Reports Giant space cloud may be powered by black holes 17:57 23 April 2007 NewScientist.com news service David Shiga An enormous cloud of roiling plasma in space may be drawing its energy from black holes, new observations suggest. Such clouds might be sources for the mysterious particles that occasionally crash into Earth's atmosphere at ultra - high speed. ... But higher energy particles in the cloud may be able to escape, he says. ...

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• http://www.naic.edu/general/PDF/RI/Luisa_Lara.pdf
• astronomers detect coolest star
• Frontiers of Astronomy with the World's Largest Radio Telescope Frontiers of

... 200 jet radii . ... bipolar simulation . initial density contrast 1/10,000 (jet/IGM) . ... Density films: (970 frames) . gif, 100MB] [MPEG IM, 5MB] . Density films: (97 frames) . gif, 10MB] [jpg, 0.9MB] [h363+, 0.9MB] [ISO MPEG4, 0.9MB] [pre MPEG4 v3, 0.9MB] [pre MPEG4 v2, 0.8MB] [real, 0.9MB] [gif, 1MB] [MPEG1, 0.9MB] [MPEG IM, 0.5MB] . ... Virtual Jets 2003 (Dogliani, Italy) [slides] [proceedings] . ... This page is maintained by Martin Krause ...

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• LOFAR MKSP Workshop
• Astrophysics Group Very Large Telescope Interferometer
• Astrophysics Group Atacama Large Millimetre Array (ALMA)

... 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. ...

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• Siding Spring Survey
• Large Magellenic Cloud (7)
• Large Magellenic Cloud

... V.N. Obridko . ... Local fields . ... Large Scale Magnetic Fields . Solar cycle . ... Solar magnetic fields . ... Sector structure, rotation and cyclic evolution of large-scale solar magnetic fields . ... V.N. Obridko , Shelting B.D. Rotation characteristics of large-scale solar magnetic field . ... Zonal structure and meridional drift of large-scale solar magnetic fields . ... Proc. 10th European solar physics meeting", solar variability: from core to outer frontiers", Prague, Czech. ...

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• LARGE-SCALE PHENOMENA AT THE SUN ASSOCIATED
• Large_Scale Emitting Chains