... One of these factors is how the client application uses VDPAU; i.e. the number of surfaces allocated for buffering, order of operations, etc. ... At a bare minimum, the application must allocate one video surface for each reference frame that the stream can use (2 for MPEG or VC-1, a variable stream-dependent number for H.264) plus one surface for the picture currently being decoded. However, if this minimum number of surfaces is used, performance may be poor. ... Performance Levels . ...

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• pntErrVsPlatformMotion

... Planets . ... Stars . Exoplanets . ... Most exoplanets so far discovered fall into the category of тАШhot JupitersтАЩ, these are giant planets orbiting very close to their parent star. ... Note that we have discovered so many hot Jupiters because they are the easiest type of planet to find, they are not necessarily particularly common in the galaxy. ... Subsequently several similar hot and€а fuzzy worlds have been discovered the same way, proving this that this planet is not a one-off oddball. ...

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• Carnival of Space No 179: Space blogs you can't afford to miss! | Astronotes
• How has Mars changed over billions of years? | Astronotes
• Amazing multi-spectral view of Andromeda Galaxy | Astronotes

... Credit Copyright: Malin Space Science Systems , MOC , MGS , JPL , NASA Explanation: Is it an Escher, or Mars? Three different types of surfaces visible in the North Polar Cap of Mars morph into each other in a way perhaps reminiscent of the works of M. C. Escher . On the far left dark sand covers the ground , while the center shows a transition to a dune field . On the far right a transition is made to a much lighter surface , likely containing a larger amount of ice. ...

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• XWare > APOD

The database contains references to the papers, data files and links to the Internet resources related to measurements and calculations of the optical constants in the wavelength interval from X-rays to radio domain. ... References to some useful books and reviews on the subject (e.g. the classical handbooks edited by E.D.Palik) and links to Internet collections of optical constants and personal WWW pages with related software were also placed in the database. You have arrived at our welcome page. ...

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• Examples of data contained in the JPDOC
• Database of Optical Properties -- Level: subsubsubpage
• Silicate minerals

... 1) Our CAS system will store the catalogues. ... Each catalogue should contain one or more tables. 2) The names of the catalogues should be unique, as well as the the names of tables of the SAME catalogue. ... 4) All the metadata about the CAS system, its tables, catalogues should reside in separate schema (currently "cas_metadata"). 1) The main system table of CAS is the table "catalog_list". ... short info (column "info") . ... 2) The second system table of CAS is the table "table_list". ...

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• APOD: October 21, 1995 - A Glimpse of Titan's Surface
• APOD: 2007 May 2 - Sunrise from the Surface of Gliese 581c
• APOD: 2010 October 25 - Water Ice Detected Beneath Moons Surface

... Moon . ... What can astronomers tell us about the different colors on the surface of Jupiter's moon Europa? ... We can use the colors of Europa s surface to tell us about the chemical compounds that make up the surface and subsurface of the jovian moon. Even before the first spacecraft made a close visit to Europa, astronomers on Earth used telescopes to study the moon and were able to use a technique called spectroscopy to determine that Europa s surface is composed mostly of water ice. ...

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• Astronomers once thought Pluto's atmosphere would condense down to the surface
• Meteorites yield clues to Red Planetт??s early atmosphere | Astronomy.com

... If the measuring aperture varies, a varying amount of starlight will be excluded. Furthermore, the excluded fraction is wavelength-dependent; so the transformation from instrumental to standard system changes. ... Unfortunately, sometimes it is necessary to combine measurements made with different field stops. Observers should realize that this really means different instruments; the differences are usually several per cent. ... Usually, the actual aperture sizes are only approximately known. ...

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• Notebooks
• Creation of the Association Rules
• Fixed Container

Phase Retrieval Measurements of Antenna Surfaces Using Astronomical Sources Bojan Nikolic, John Richer, Richard Hills Mullard Radio Astronomy Observatory, Cavendish Laboratory, Cambridge, U.K. Abstract We present a novel technique for accurate measurement of the largescale errors in an antenna surface using astronomical sources and detectors. Out-of-focus images of compact astronomical sources contain a wealth of information about the telescope optics. ...

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• Astrophysics Group Surface Imaging of Betelgeuse
• OptInt PmWiki : PmWiki / Site Preferences
• OptInt PmWiki : PmWiki / Internationalizations

Atmospheric influence on the different radio-engineering system functioning . ESTIMATION OF ATMOSPHERIC OPTICAL CHARACTERISTICS AND REMOTELY SANSED IMAGE CORRECTION . ... Direct transmittance estimation results for 12 channels of the spectrometer CHRIS. ... We have managed to develop a direct method of estimating the discrete Normalized Atmospheric Point Spread Function (NAPSF) from available images alone, not using any external sources of information about the atmosphere. ... IRE RAS 1996-20 11 ...

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TEMPERATURE OF REGOLITH IN COLD TRAPS ON THE MOON A.A. Berezhnoi Sternberg Astronomical Institute Moscow, Russia The hypothesis of the existence of the lunar ice in cold traps was stated in (Watson et al., ... Arnold, 1979) estimated the mean temperature on the surface of lunar cold traps as 40-90 K. We plotted the dependence of regolith mean temperature on depth for these two values of mean temperature on the surface (see figure 1). ... Arnold J.R. Ice in the lunar polar regions, J. Geophys. ...

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• http://selena.sai.msu.ru/Symposium/RadioMoonE.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms083.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms082.pdf

... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... the star might be able to see the lead- and zirconium-rich . ... Naslim Neelamkodan, Simon Jeffery, Natalie Behara and Alan Hibbert are studying the surfaces of small hot stars, known as helium-rich subdwarfs. ... Now studying a group of similar stars, they have discovered two which have surfaces containing ten thousand (10,000) times more lead than is present on the surface of the Sun. ... Prof Simon Jeffery . ...

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• Armagh Astronomers to observe Ringing Star with Global Telescope
• Meteor showers at Mars
• INTRODUCTION

This is the homepage of Andrew Fruchter, an astronomer on the staff of the Space Telescope Science Institute . ... Here you can look at an HST images of the optical counterparts of gamma-ray bursts and their host galaxies. ... Therefore, substantial information on the fine scale structure of objects can be obtained by offsetting the pointing of the telescope between exposures and then combining these "dithered" exposures into a single image. ...

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• Stellar Photometry
• THE GALACTIC EMISSION LINE OBJECT ATLAS
• Electronic PictureBooks

Our collection contains previews of images of ocean and sea surface taken by various satellite, aircraft and ground-based remote sensing instruments. Active and passive instruments operating in microwave and optical ranges present their capabilities to register physical and biological phenomena manifesting themselves in bands of slicks on the sea surface. ...

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• SIMP > physical > internal waves > ers9609020202
• Saturn's Moon Enceladus
• Saturn's Moon Tethys

Titan . ... Hubble Space Telescope Images of Titan's surface . ... Later that year, it will release the European-built Huygens probe for a descent through Titan's atmosphere. ... This artist's rendering shows the European Space Agency's Huygens probe descending into the atmosphere of Saturn's moon Titan after being released by NASA's Cassini spacecraft. ... This artist's rendering shows the Huygens probe on the surface of Saturn's moon Titan after being released by NASA's Cassini spacecraft. ...

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• Ice Volcanoes Reshape Europa's Chaotic Surface
• Saturn's Moon Enceladus
• Hubble Finds Oxygen Atmosphere On Jupiter's Moon Europa

. To you, the user, it appears as though there is only one type of file in UNIX - the file which is used to hold your information. In fact, the UNIX filesystem contains several types of file. Ordinary files . Directories . Special files . Pipes .

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• Creating multiple vi environments
• About the Concepts menu
• Divisions

... For this purpose, catalog entries for stars within 12њx6њ region centered at 12h 20m right ascension and 33њ declination were examined. ... In Figure 1, the distribution in Johnson V magnitude of all Tycho catalog entries for stars within 12њx6њ region centered at 12h 20m right ascension and 33њ declination is plotted . ... Figure 1 : Distribution of magnitude in Johnson V. This is for the 510 stars from the Tycho catalog in a 12њx6њ area in the center of the northern survey region. ...

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• Deforming Plug-plates
• Untitled Document
• Primary mirror support

... Billions of years ago the surface of Mars looked very different than it does today. Where there is now only a dry red desert, there was once an vast ocean that covered about 20% the planet's surface. That means it covered more of the surface of Mars than the Atlantic Ocean covers on Earth! ... So, by looking at how much heavy water is in Mars' atmosphere in comparison to the lighter kind, we can tell how much normal water the planet has lost into space. ...

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• High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)
• Organization of data
• Titan Observed Through Nine Different Filters on November 26, 2002 | ESO

... Early on, our interest in chirping analysis functions was motivated by a different kind of chirping phenomenon: chirping due to perspective. ... Our interest in radar, however, drew us toward processes that are more accurately analyzed by linear-FM chirplets. ... We have also constructed other chirplet transforms, such as a three-parameter Doppler chirplet representation that models a source producing a sinusoidal wave, while moving along a straight line (e.g. a train whistle). ...

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• Thomson's method of spectral estimation
• XFree86/OS2 Available Ported Software - Libraries
• Dynamic HTML in Communicator

Since the light from galaxies represents the integrated contribution of its consitutient stars, then we can learn about stellar populations in galaxies by modelling their light by summing up individual stellar spectra for different kinds of stars. ... The data cover the wavelength range 3500 - 9000 angstroms. ... Retrieve Digital Stellar Spectra Click on the appropriate spectral type. ... Note that the designation V means main sequence, IV means subgiants, III means giants, I means supergiant. ...

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• Low Surface Brightness Galaxy Gallery
• Potential Energy
• Venus and Mars

... Big planets are highly circular. PPT Slide . Things are very different for small planets . ... Surface Gravity . Gravity correlates with Size . ... 433 Eros . Atmospheres: big planets are all atmosphere . Medium sized planets have moderate atmospheres . Small planets have no atmospheres . Atmospheres . ... Home Page: http://msowww.anu.edu.au/~pfrancis/astr1001/ . ... Course Notes for ASTR1001 Astronomy ...

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• Gemini NIFS August 2001 Update.
• Clearing the library. Note the different floor levels. There were at least 4
• Gravity correlates with Size