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 Unit Telescopes Overview - This page is outdated, an update is in process.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 Secondary mirror (M2 Unit) - This page is outdated, an update is in process.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 Coating Unit - This page is outdated, an update is in process.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

Henize 206 is a region of star formation in the Large Magellanic Cloud of the approximate scale of the Orion belt and sword. Our Spitzer Space Telescope infrared images and Cerro Tololo Inter-American Observatory (CTIO) optical images show that the region is experiencing very energetic star formation. ... A few percent of the total flux from this brightest region in Henize 206 emanates from infrared peaks of subparsec scale. ...

... A Large Active Region Crosses the Sun . ... Credit: Jack Newton Explanation: An unexpectedly large sunspot region is now crossing the Sun. The active region is home to rivers of hot plasma , explosive flares , strong magnetic fields , a powerful Coronal Mass Ejection (CME), and a sunspot group so large it can be seen by the protected eye without magnification. ... Publications with keywords: Sun - sunspot - active region . Publications with words: Sun - sunspot - active region . ...

... 2004 July 26 . A Large Active Region Crosses the Sun . ... Explanation: An unexpectedly large sunspot region is now crossing the Sun. The active region is home to rivers of hot plasma , explosive flares , strong magnetic fields , a powerful Coronal Mass Ejection (CME), and a sunspot group so large it can be seen by the protected eye without magnification. In fact, this region appears larger than Venus did when it crossed the Sun last month. ... About APOD | ...

... Samara region . SSAU History . ... An alignment meeting on data mining, storage and processing of very large data amounts on the basis of hardware and software complex Big Data took place in Samara State Aerospace University. ... The laboratory for processing of very large data amounts on the basis of the hardware and software complex was made in the University and the necessary equipment was purchased. ... Data processing requires powerful processors and advanced computer programs. ... Big Data. ...

... inclusive or left to right For example, to create a mask consisting of a large circle with a smaller box removed, one can use the and and not operators: CIRCLE(11,11,15) !BOX(11,11,3,6) and the resulting mask is: 1234567890123456789012345678901234567890 ---------------------------------------- 1:1111111111111111111111.. 2:1111111111111111111111.. 3:11111111111111111111111.. 4:111111111111111111111111.. ... 6:1111111111111111111111111.. ... 1111111111111.. ... 22:111111111111111111111.. ...

LARGE-SCALE PHENOMENA AT THE SUN ASSOCIATED . WITH FILAMENT ERUPTIONS OUTSIDE ACTIVE . ... Considering the 12.09.1999 event as an example, we analyze manifestations of large-scale disturbances associated with coronal mass ejections (CMEs) caused by filament eruptions outside of active regions. ... The filament eruption occurred in relatively weak magnetic fields, but it was accompanied by larger-scale phenomena than flare events do. ...

Next: Observations Up: The Nuclear Region: HI Previous: The Nuclear Region: HI . There are mainly two questions to be addressed: 1) What causes the large velocity width (several hundred kms -1 ) of the absorption lines detected against the nuclear regions of galaxies? 2) Why are the absorption line widths observed against the nuclear radio continuum similar to those measured in emission over the whole extent of the galaxy? ...

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... 2000 September 25 . AR 9169: A Large Sunspot . ... Explanation: One of the largest sunspots in recent years is now crossing our Sun . Dominating active region AR 9169 , the sunspot is the large dark complex visible below (west) and right of center in the above photograph of our Sun taken last Thursday. ... AR 9169 holds the largest sunspot yet produced during this Solar Maximum , the time of greatest sunspot activity during the Sun's 11-year magnetic cycle . ... About APOD | ...

... Some existing (e.g., USNO-A1.0) and most of the upcoming catalogs (e.g., GSC-II SDSS , GAIA ) contain data for half a billion up to several billion objects. ... Here we present methods for structuring and searching very large catalogs to provide fast access to the coordinate domain of the parameter space. ... By generalising such methods it is also possible to produce catalog structures and indexes for accessing a multi dimensional parameter space. ...

Next: Selection effects Up: Emission-line galaxies Previous: Emission-line galaxies . ... O III ] ? ... In Fig. 4 emission-line galaxies from the HSS sample are plotted in comparison with some BCGs from the SBS (Izotov et al. [ 1994 ], [ 1997b ]; Thuan et al. [ 1995 ]) and ELGs from the Case survey (Weistrop & Downes [ 1988 ], [ 1991 ]; Augarde et al. ... We tentatively classify it as a possible LINER (low-ionization nuclear emission-line region galaxies; Heckman [ 1980 ]). ... emission lines. ...

... The Tarantula Nebula , also known as 30 Doradus and NGC 2070 , is a large region of ionized gas surrounding a collection of newly-forming stars at the eastern end of the stellar bar in the Large Magellanic Cloud (many similar regions are scattered through the LMC; see Kennicutt et al. ... The false-color image above is a log-scale display of a mosaic of several images taken with a CCD camera on the 0.6m Curtis Schmidt telescope at Cerro Tololo Inter-American Observatory in December 1994. ...

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . ... Planets . ... This bizarrely shrunken planetary system was found by NASAтАЩs Kepler mission, hence the parent star has been named Kepler-11. ... Planetary scientist and Kepler science team member Jack Lissauer said ?These six planets are mixtures of rock and gases, possibly including water.тАЭ €аNone of these strange new worlds are likely to be home to any form of life; their surface conditions are simply too extreme. ...

... Field-aligned currents (FAC, also called the Birkeland currents) are essential to the linkage between the solar wind - magnetosphere system and the ionosphere . The main large scale FAC systems are the Region 1 and 2 currents. ... Expands to lower latitudes with increasing activity (see also the auroral ovals ) . ... TCV currents . ... Yamamoto, T., S. Inoue, N. Nishitani, M. Ozaki, and C.-I. Meng, A theory for generation of the paired region 1 and region 2 field-aligned currents, J. Geophys. ...

... Flux density at 1 GHz (/Jy): 210 . ... Optical: Large filamentary loop, brightest to the NE, not well defined to the S or W. X-ray: Shell in soft X-rays. ... DRAO at 408 MHz (3'.3?6'.7) for spectral index study, plus X-ray and optical. ADS . ... Optical spectroscopy of nearside filaments. ... 1992, ApJ, 400, 214. ... IRAS observations. ... Leahy et al. ... Far-UV spectroscopy, H and other optical observations of NE region. ... Suzaku observations of NE. ... Suzaku observations of N. ADS . ...

A new wide-field panorama reveals more than a thousand supermassive black holes in the centers of galaxies, some up to several billion times more massive than the sun. This survey, taken in a region of the Bootes constellation, involved 126 separate Chandra exposures of 5,000-seconds each, making it the largest contiguous field ever obtained by the observatory. ... X-ray: NASA/CXC/CfA/R.Hickox et al.; Moon: NASA/JPL ...

... A typical density of energetic ions is 1 per cubic cm., and the ions are matched by electrons, generally of lower energy. ... This region is almost empty of plasma--typical density 0.01 ion/cubic cm., the "best vacuum" in the Earth's vicinity--but it contains a relatively strong magnetic field which, since it fills a large volume, can store appreciable magnetic energy, Many believe that this is the storehouse from which substorms draw their energy, releasing it quite rapidly. ...

... Meta Index / Home Page To improve the execution time of the task the source region is divided into a grid which is used to check whether pixels lie on a CCD. The width of each grid element is set to be 10 detector pixels ( arcseconds) for small regions (region half-width less than 2 arcminutes) and 20 detector pixels ( arcsecond) for larger regions. ...

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