... Bad Astronomy . ... Mad Science . ... Site Info . ... Public Talks . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Who is this guy who calls himself "The Bad Astronomer?" ... First, yes, I am a real live astronomer (when people ask me what astronomers do, I tell them "They astronom !" ... These are emitted by powerful objects like black holes, exploding stars, and super-dense neutrons stars. ... Finally, am I really a bad astronomer? ... 2008 Phil Plait. ...

... The task also issues a number of housekeeping related messages and values and also writes several keywords to the EXPOSURE extension (the information is usually CCD-dependent and it is thus important that it is kept and propagated through the event file processing chain). ... Filter: the filter wheel position is derived from the position sensor potentiometer (housekeeping column F1122 contained in the main periodic housekeeping file PNPMH1 , HK mnemonic H_CE_FWSPOT). ...

... 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). ...

STScI . HST . ... What is STScI . ... Missions . ... Data . ... Future Missions and . ... Missions Office . ... HST Peer Review Process . ... HST Overview . Overview . ... Servicing Missions . Phase I Proposing . ... Cycle 24 Announcement . Cycle 23 Results . ... Mid Cycle Submission . ... Phase II Cycle 23 . ... Retrieving HST Data . ... Data Analysis . ... HST Science Year in Review . ... NICMOS . ... Presentation from 2002 SPIE Meeting: Post-NCS Performance of the HST NICMOS . ...

The ESA/ESO Astronomy Exercise Series 2 . The Distance to Messier 100 as Determined by Cepheid Variable Stars . ... The small variations in distance to the individual Cepheid variable stars in the Cloud are negligible compared with the much larger distance to the SMC. ... In this way Cepheid variable stars can be used as one of the 'standard candles' in the Universe that act either as distance indicators themselves or can be used to calibrate (or set the zero point for) other distance indicators. ...

... A Picturesque Venus Transit . ... Credit Copyright: David Cortner Explanation: The rare transit of Venus across the face of the Sun in 2004 was one of the better-photographed events in sky history. Both scientific and artistic images flooded in from the areas that could see the transit : Europe and much of Asia, Africa, and North America. ... 2003 2004 . ... NASA Official: Jay Norris. ... Publications with keywords: Sun - Venus - transit . Publications with words: Sun - Venus - transit . ...

Neutron Monitors ] [ Solar Neutrons ] [ Muon Telescopes ] [ Base Potchefstroom University ] [ Magnetometers ] [ GPS systems ] [ Ionosphere ] [ Related Data ] [ Space Weather ] . ... All Cosmic Ray Stations + InterPlanetary Data: WorldNet . Alma-AtaB (Mt.Tien Shan) DataBase of Kazakhstan Spectrograph Alma-AtaB (Mt.Tien Shan) new . ... Nagoya Muon Telescope and DATA or mail . ... Belgrade Muon Telescopes and DATA or ">mail . ... Real-Time database for Cosmic Ray Anisotropy (DB10) . ...

The Real Layer Advantage . So far, none of this is really earth-shattering. ... I hear you say, "I can do that without layers." ... You've created our nice GIMP logo for the company homepage. Four days later, the boss comes up to you and says, "Didn't anyone ever tell you that GIMP Corp.'s company colors are green and blue? ... A view of all our layers so far . The good news is no! With layers, you can change each layer independently. ... Let's do that with our GIMP logo. Step 1 | ...

... Space Organizations . Image Archives . ... Space Related Software Archives . ... Net Resources . ... National Solar Observatory Public Relations . NASA Historical Space Archive . ... NASA Home Page . NASA/Kennedy Space Center . ... SETI Institute Home Page . ... NASA Image eXchange (NIX) . ... NASA Solar Data Analysis Center . ... Selected Deep Space Images . ... Software from explorer.arc.nasa.gov . ... Space Settlement Home Page . ... Overview of Space Resources at CERN . ...

... Tonight's Sky . ... Sky this Month . ... The Sky This Week: April 1 - 10 . ... Astronomy for Kids . ... The Real Reality Show: Would aliens be anything like us? ... The Real Reality Show: All about the Drake Equation . ... The Real Reality Show . ... The Real Reality Show: Is Interstellar Travel Really Possible? ... Only registered members of Astronomy.com are allowed to comment on this article. ... Receive news, sky-event information, observing tips, and more from Astronomy's weekly email...

... You are here: start €Ё difx €Ё difxmpi_mpi_related_issues . Trace: тАв difxmpi_mpi_related_issues . difx:difxmpi_mpi_related_issues . The DiFX software correlator uses MPI for organizing the spawning of processes on different computers and for transmitting data from one process to another. MPI is used only for communication between mpifxcorr processes. ... MPI assigns each process that it starts an integer identifier (called rank) that is used to refer back to that process. ...

... Archives . ... Another exciting news (with no use) . ... One of those rabbits is hunting online lectures useful for everyone. Prof. Feynman?s lectures have great reputations but they have been hard to come by. ... Thanks to Bill Gates and Microsoft Research , although it is a belated news, I?m very delighted to say ?Feynman lectures are online.? ... I attribute its lack of discussion in the slog to its late debut. ... Comment ( RSS ) | ... Chandra Blog . ... Entries (RSS) and Comments (RSS) . ...

... Space flight . ... Space camp . Space Hotel . ... The aim of the Space Camp program is to promote achievements of Russian manned cosmonautics and space exploration. ... One of the main tasks of the Space Camp program is to facilitate cooperation with educational institutions in Russia and abroad in proliferation and mastering of acquired knowledge in a form of space-related quizzes, contests, scientific experiments, on line- and videoconferences. ...

... The Figure shows the parallactic angle in relation to the source position at (RA,DEC), the zenith of the telescope at (LST,AoLatitude), the hour Angle HA, and the azimuth direction AZ (in the picture the source has already transitted). ... Now suppose that a second feed was placed 1 beam width away from the central horn parallel to the azimuth arm. ... Figure 1. shows the parallactic angle rate versus azimuth angle for declinations 8 through 28 (spaced 1 degree steps from Arecibo's latitude). ...

International Service of Geomagnetic Indices (ISGI) of the IAGA . ... World Data Center C1 for Geomagnetism (WDC-C1), . Solar-Terrestrial Physics Division in Copenhagen, Denmark . ... Sodankyl Geophysical Observatory Geomagnetic and Ionospheric Data . Space Physics Text Book (Oulu): Magnetic activity indices . ... Solar Data Analysis Center (SDAC) . ... Mauna Loa Solar Observatory Analysis Center of HAO/NCAR in Boulder, Colorado . ... Neutron Monitor Server , University of Chicago . ...

... My Page On imeem . ... Internet Movie Database . ... The Comet Home Page . The ADS Abstract Database . ... Asteroid Showers on Earth after Family Breakup Events Another paper, but only the abstract.. ... Todd's Atomic Homepage . ... Linux Myths - Dispelled . The Video Game FAQ Archive . ... The Lunux/Alpha Home Page . ... Paul's ascii Art Archive . ... DIY Country & Western . ... The 80's Text File Archive . ... BACK To Scott's Home Page, before you find the .. ... DIY Atomic Weapons . ...

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... Data Handling and Products > Data Reduction FAQ > I derived quantities related to the performance of an instrument. How do I know whether these numbers are "normal"? ... Observing with ESO Telescopes . ... Instrument Pipelines . ... ESO-MIDAS . ... ESO Data . ... Related External Services . ... The quality control group at ESO monitors a variety of instrument parameters such as zeropoints, efficiencies, read-out noise, etc. ... http://www.eso.org/observing/dfo/quality/ <INSTRUMENT> /qc/qc1.html . ...

Links and Resources for Energy and the Environment . The world is finally becoming globally aware that exponential resource usage in combination with finite reserves is a recipe that ensures our great grandchildren won't be born. ... National Environmental Information Service . ... Electronic Energy Journal . ... Sustainable Development Dimensions , including sections on Environmental information , Environmental policy, planning and management and Energy for development . ... Acid Rain Resource . ...

Links on this page are to sites that hold information on the Sun , our nearest star . ... Big Bear Solar Observatory (BBSO) , California, USA. Mauna Loa Solar Observatory (MLSO) , Hawai'i, USA. ... Space Environment Center, Current Solar Images , Boulder, Colorado, USA. ... Solar Data Analysis Center, Latest Images , at GSFC, Maryland. ... NSSDC - National Space Science Data Center, Solar Physics (at GSFC). ... NSSDC - National Space Science Data Center, Space Physics (at GSFC). Back to Links ...