... Tonight's Sky . ... Sky this Month . ... space physics . ... The Sky This Week: April 1 - 10 . ... Sky this Week . ... Sky Events . Get to Know the Night Sky . Tour the Deep Sky . Sky Guide . ... Observing springtime deep-sky objects with a large telescope . ... Johns Hopkins University Applied Physics Lab, Laurel, Maryland . ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email newsletter. ...

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• Space: women neednт??t apply? | Astronomy.com
• Hayabusa update | Astronomy.com
• Earth's laws still apply in distant universe | Astronomy.com

. To change the access permissions for a file or directory use the command chmod mode filename chmod mode directory_name . The "mode" consists of three parts: who the permissions apply to, how the permissions are set and which permissions to set. **Caution** . Examples . Setting access permissions numerically . Changing default access permissions .

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• Security Considerations
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... Submitted by Al Takeda on 02/22/2008 23:54:35 . Total Lunar Eclipse (Mid-eclipse) - Updated . ... Additional brightening, unsharp masking and Noise Ninja noise reduction have been applied. ... 20 February 2008. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... Basic Observables: Zero-differenced phase and code ionosphere-free combinations of global GNSS network stations, corrected by P1-C1 satellite code biases (cc2noncc), daily observations with 30 seconds sampling rate Sites coordinates : IGb08 reference frame coordinates and velocities Displacements: solid tides, ocean loading, pole tide loading (IERS 2010) Geometric model : Receivers antennas eccentricities, absolute receiver and ...

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• Pulkovo NEO Page: Ephemeris Support

... He considers some practical aspects of dependences of the optical properties of cosmic dust analogs on their parameters. ... First results of a systemtic study as well as a detailed comparison of different optical characteristics (cross-sections, phase function, etc.) of some complex shape and structure scatterers and their optical models are presented here and here . ...

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• Database of Optical Properties -- Level: database
• AI SPbU library of scattering codes
• Database of Optical Constants -- What's new

... Open Systems: . from Principles to Technology . ... To Open System Principles . ... Principles of Open Systems . TR ISO/IEC 14252-1996 . Open system: A system that implements sufficient open specifications or standards for interfaces, services, and supporting formats to enable properly engineered application software . ... Open system technology . ... The developed Open System Technology - scientific heterogeneous computing environment integration base. ... Open Systems Centre . ...

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• Open Systems: from Principles to Technology
• Project 1 - SfP - Ovsyannikov, Supersensitive high-Tc superconducting
• GOVERNMENT OPEN SYSTEMS INTERCONNECTION PROFILE (GOSIP)

Next: Mass change Up: Evolutionary Scenarios of Binary Previous: Stellar Winds From Normal . As mentioned earlier, the duration of the binary evolutionary stage (say, I+I) is determined by the faster evolving component , where is the time each component spends at the corresponding evolutionary stage. ... Next, we should calculate the mass change for the slower evolving companion, the orbital semi-major axis and the eccentricity. Mass change . Semi-major axis change . ...

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• Mass change
• Semi-major axis change
• Contents

... Home About Meade Product Information Dealer Locator Customer Support Investor Relations Dealer Support Employment Opportunities Site Map . Meade Instruments Corp. ... Meade Autostar Supplementary Software Downloads . ... To upgrade your Autostar first click on the link below to download the Autostar Update (ASU) Client Application for Windows. ... The most recent versions of AutoStar Update automatically check for the newest versions of the AutoStar Updater and download it if necessary. ...

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• Meade Series 4000 Eyepieces

... Space Research Institute . ... Space Weather service : ACE real time solar wind data and simple geomagnetic activity forecast. IZMIRAN forecast center of geophysical situation : Forecasts for atmospheric pressure, temperature and other parameters. ... Institute of Applied Geophysics : Geomagnetic situation forecast for the next week. Today's Space Weather : Presented by the Space Environment Center. Real Time Solar Wind Presented by the ACE. ...

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• IKI SSC, INTMINS APRIL99
• Applying Kepler's Third Law
• Mauricio Peredo

polimodel -- Produce model linear polarization and position angle images . ... Whether to apply random errors to output polarization and position angle values. seed = "" [integer] . ... This task produces a model linear polarization image and corresponding position angle image from an input image assumed to represent intensity (Stokes I parameter). ... A threshold for the input image can be defined such that polarization and position angle are not computed for input values less than this threshold. ...

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• TRANBACK (V0.2) --- Dec99 --- TRANBACK (V0.2)
• TRAXY (V0.4) --- Dec99 --- TRAXY (V0.4)
• ASNCOMBINE (Nov98) --- nictools --- ASNCOMBINE (Nov98)

... SMIS : Space Monitoring Information Support laboratory . Russia's Weather : State Meteorological Center Weather Forecast . Space Weather service : ACE real time solar wind data and simple geomagnetic activity forecast. ... World Fire Web : Space Research Institute (IKI) node . Sputnik : Joint project of SRC Planeta, Rosgidromet and Space Research Institute (IKI) . ... Today's Space Weather : Presented by the Space Environment Center . ... Back to the Space Research Institute Home Page ...

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• Global change [Oulu]
• The Face on Mars
• Isotropic boundary (Oulu)

Subject, Problems and Objects of Theoretical Astrophysics. ... Stellar Photospheres, Their Features. ... Physics of Continuous Radiation Absorption in Stellar Photospheres. ... Continuous Radiation Absorption in Stellar Photospheres of Various Spectral Classes. Solar Type Photospheres. ... Characterisics of Absorption Lines. ... Interstellar Absorption Lines, Their Features. ... Physical and Dynamic Features of Interstellar Medium, Which Follows from Observations of Interstellar Absorption Lines. ...

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The absorption of MHD waves due to the cusp (or the slow) resonance is studied numerically and the obtained results are discussed with respect to a possible application to conditions that are typical for the solar corona. The considered configuration is composed of two homogeneous regions separated by an inhomogeneous slab through which all physical parameters of the medium change continuously according to an initially prescribed distribution. ...

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• Web Site Updates 2006
• Background
• Tutorial on Fortran 90, PC version

This module provides for determining the MIME type of a file by looking at a few bytes of its contents. ... string . ... belong . ... For example, this can recognize gzipped files and set the encoding for them. # gzip (GNU zip, not to be confused with [Info-ZIP/PKWARE] zip archiver) 0 string \037\213 application/octet-stream x-gzip This module is not for every system. ... When compiling an Apache server, this module should be at or near the top of the list of modules in the Configuration file. ...

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• Upgrading to 1.3 from 1.2
• Manual Page: htpasswd - Apache HTTP Server
• Configuration Files

... Bad Astronomy . ... I think I will break from my usual format of Bad Astronomy/ Good Astronomy by saying that the way we define seasons currently is not strictly bad, but I feel (in my opinion!) that it could be better. The definition of when the seasons begin is at the moment of solstice or equinox; that is, winter (in the north) starts on December 22 nd and summer starts on June 22 nd . ... Now imagine breaking up the Sun's 46 degree up-and-down yearly swing into 1 day intervals. ...

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MINUTES of the RadioAstron Teleconference on December 13, 2011 Yu.Yu. ... IOC status update M. Popov informed the participants on the current IOC results. ... Kovalev added: we continue to observe pulsars and spectral line sources in radiointerferometer mode but only with spacecraft and we are also going to observing pulsars soon with space-ground baselines. ... Kovalev: It is fringe-fitting result. ... In RAFS05 we replace it with K-band observing (maser source Ori KL ­ spectral lines ~100000Jy). ...

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• MEMORANDUM