... The spacecraft of Magion type have been selected as the subsatellites of the Interball project: Magion-4 (C2-X) for the Tail Probe and Magion-5 (C2-A) for the Auroral Probe. ... Magion-4 was produced in the Czech Republic in collaboratrion with Russia, Ukraine, Hungary, Austria and has onboard scientific instruments and sensors designed and built in Czech Republic, Russia, Poland, Hungary, Romania, Bulgaria and Slovak Republic. ... Plasma flow detector VDP-S (Czech Republic, Russia) . ...

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• Polar Orbiting Satellites
• Rotating Frames of Reference in Space and on Earth

... Under conditions of the Earth gravitation we are using the method of semi-natural simulation of linear accelerations in the centrifuges with a mobile cab for simulation of G-loads, originating in a space flight. ... The major factor of the orbital flight, affecting a cosmonaut, is a weightlessness state, which causes essential changes in cardiovascular and vestibular systems operation. ... Under the Earth conditions you can "execute" a short-term space flight according to the following cyclogram: . ...

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An astronaut in low Earth orbit moves in (approximately) a big circle extending around the Earth. ... That can be interpreted as stating that in the astronaut's frame of reference, all bodies are subject to two forces, gravity and the centrifugal force, and the two are in perfect balance, adding up to zero. ... Wheel-shaped space . ... The science-fiction film "2001: A Space Odyssey" featured spinning space station, whose rotation provided the crew with "artificial gravity." ...

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• Polar Orbiting Satellites
• The Acceleration of the Aurora
• Close-up of the Aurora

Optical Filters . The polarizer quads were also designed to map onto a four-faceted WFC configuration and, consequently, also require a partial filter rotation of -33 degrees to move the filter quadrant 1 (nominal polarization angle 135 degrees ) into WFCs 2 and 3, with some vignetting of both camera fields. Several additional partial rotations have been added to allow observations with different polarization angles on the same CCD. ...

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• Polarization Observations

... Hale-Bopp in Stereo . ... Earth, Clouds, Sky, Comet . ... Does a comet's dust tail always orbit behind it? ... Which is closer: the comet or the galaxy? ... Presently, for denizens of the Earth's northern hemisphere, this bright comet is certainly a lovely and inspiring sight -- visible here crowning the sky above Cortina d'Ampezzo, Italy on March 20. ... Undaunted by the artificial glow from one of the most famous urban skylines on Earth, comet Hale-Bopp shines above the city of New York, USA. ...

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... 2012 September 8 . Cosmic Rays at Voyager 1 . Credit: Voyager Project , NASA . ... Thirty five years later , Voyager 1 appears to be nearing the boundary of the Sun's heliosphere and interstellar space. ... But how can you tell when your spacecraft crosses the boundary into interstellar space? ... Covering a 12 month period (September 2011 to 2012), this plot does show a dramatic increase in the rate of cosmic ray particle detection in past months by the Voyager 1 spacecraft. ... About APOD | ...

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• APOD: 2007 May 14 - Rotating Earth from Galileo
• APOD: 2007 March 12 - Watch Jupiter Rotate
• APOD: 2010 January 24 - Watch Jupiter Rotate

Astronotes Armagh Planetarium's Stellar Blog! ... Space Flight . ... Concept Spacecraft . ... By admin September 24, 2010 Posted in: Concept Spacecraft . One of the most grandiose of the vehicles suggested by Cole was the Aldebaran concept, a gigantic nuclear-powered launch vehicle he proposed in 1959. ... Scott Lowther has recently added fascinating scale drawings of this and other nuclear space propulsion concepts at his blog (the Unwanted Blog). ... The Amazing Aldebaran Spacecraft | ...

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• physics | Astronotes - Part 3
• Christmas Card Competition Winners: Images of the Month | Astronotes
• Amazing multi-spectral view of Andromeda Galaxy | Astronotes

... IRAF View . This is the orientation of the image as viewed in an image display via IRAF (e.g. ximtool, saoimage). Note: This is different from the orientation of the image as viewed on a Macintosh, via Remark . ... A +X, +Y instrument offset will move a star in the direction indicated by the arrows. ... Note: The offset direction depends upon which interface the offset command was issued in! ... Note: This is different from the orientation of the image as viewed by IRAF. ...

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• TUI:Telescope:Offset Types
• TUI:Telescope:Offset window

... Magnetic fields, subatomic particles, etc., traveling in different directions fill the universe. Do they deflect or otherwise affect one another? If so, isnт??t the information we get from them distorted? ... Neutrino astronomy, which is still in its infancy, is attractive because neutrinos interact so weakly with matter that few of these distorting effects occur. Get instant access to subscriber content on Astronomy.com! ...

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• Different faces of Pluto emerging in new images from New Horizons |
• What can astronomers tell us about the different colors on the surface of

... Bojan Nikolic web pages (r. 329) . ... Using high-resolution three-dimensional realisations of turbulent fields, we investigate the limits on achievable performance of atmospheric phase correction using water-vapour radiometers arising from following effects: the incoherent measurement of power from water by the radiometers (in contrast to coherent detection of the astronomical signal); the different tapers of the response patterns of the astronomical and radiometer receivers; and, the ...

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• Determination of the relative orientation between radio and dynamical reference
• Examples of Dave Green's `cubehelix' colour scheme

... In spite of the fact that the orbit assumes a zero gravity (the scientists count on it by growing super-clean crystals and other materials impossible on the earth), in fact, none spacecraft provides such conditions. ... This question is answered by the device developed by SSAU scientists - Micro-acceleration Compensation Space System (MCSS). ... Then, the computer will give commands to the magnets that compensate micro-accelerations. ... Tags: 'photon-m4' mcss . ... SAMARA STATE AEROSPACE UNIVERSITY...

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... For each event in the input list, evproject calculates an X and Y coordinate pair. ... These X and Y coordinate values are stored as 4-byte integers in columns of the event list designated by the parameters xcol and ycol . ... The task calculates a nominally average spacecraft attitude (comprising right ascension and declination of the spacecraft -X axis and the position angle of the spacecraft -Z axis) and stores this in the event list header in keywords RA_PNT , DEC_PNT and PA_PNT . ...

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• satvelsrc: SATellite VELocity in SouRCe direction

... The dependence of velocity ellipsoid parameters for various types stars upon theirage was investigated. ... For metal-rich stars ([Fe/H] -0.1) the shape of velocity ellipsoid becomes more spherical with increasing age of the stellar group and it approaches the equilibrium shape. ... По данным uvby -фотометрии, изохронным возрастам и собственным движениям ~3500 F -звезд диска в окрестности 80 пс от Солнца исследованы зависимости параметров эллипсоидов скоростей различных звезд от возраста. ...

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• Scientific Directions Achievements
• Vladimir Marsakov Publication List

... Bad Astronomy . Misconceptions . ... Bad Astronomy : The Moon only shows one face to us because it is not rotating. Better astronomy : The Moon only shows one face because it is rotating, once every time it revolves around the Earth. ... Place the Moon model on the table about 30 centimeters (one foot) away with the X facing the Earth model. ... You'll see that to keep the X facing the Earth model, you have to rotate the Moon model as it goes around the Earth model . ... 2008 Phil Plait. ...

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The nasa.gov site requires that JavaScripts be enabled in your browser. ... Contact NASA . ... The term "astronaut" derives from the Greek words meaning "space sailor," and refers to all who have been launched as crew members aboard NASA spacecraft bound for orbit and beyond. Since the inception of NASA's human space flight program, we have also maintained the term "astronaut" as the title for those selected to join the NASA corps of astronauts who make "space sailing" their career profession. ...

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• Astronaut Bio: John E. Blaha (05/2008)
• Astronaut Bio: J. M. Linenger 8/01
• Astronaut Bio: Eugene A. Cernan

... Computing the pointing error . ... The platform can be rotated by pulling on the tie downs or redistributing weight on the platform. ... The horn rotates through the same angle as the platform. ... The plots show the computed pointing error for different platform rotation angles (.ps) ( .pdf ): . This shows the pointing error in as you tilt the platform. ... B2209+080 has the pointing errors with no tilt. ... The computed pointing error for a platform tilt track the measured errors pretty well. ...

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• Orbits in the period / acceleration plane
• S2 S and D
• AGES - the Arecibo Galaxy Environment Survey

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• First Steps to the Renaissance
• Fabry-Perot Images of Spiral Galaxies

GRANAT is the Russian x-ray sattelite launched to the high apogee orbit (200,000 km) and operated almost for 10 years (1989 -1999) , carrying out four major instruments: French SIGMA coded-mask hard x-ray telescope (30-1000 keV), Soviet ART-P coded-mask telescope (2??-60?? keV), all-sky monitor WATCH (6-150 keV), and a gamma-burst detector PHEBUS . ... Since September 1994, GRANAT is in the survey mode. ... Explore pages devoted to individual GRANAT instruments (including main scientific results): . ...

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... Laboratory for Spectroscopy of Molecular Structures . ... Optics and spectroscopy of molecular and liquid crystals, fullerenes, superthin molecular films. Optical studies of structure, phase transitions, pretransitional phenomena, structural modifications in external field and under high pressure. ... Methods developed in the laboratory enable to determine in free standing films of different types liquid crystals values of polarization, two-dimensional constants of orientational elasticity. ...

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With this knowledge of orbits, we are ready to plan a trip to Mars. ... The spacecraft will already have the 107,000 kilometers per hour (66,500 miles per hour) speed of Earth, whereas Mars moves at only 86,900 kilometers per hour (53,900 miles per hour). ... A speed of about 42,000 kilometers per hour will be enough to escape the Earth's gravity and, when added to the Earth's orbital speed around the Sun, put the spacecraft on a Hohmann transfer orbit to the Red Planet. ... 1,570,000 . ... Earth . ...

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• ASP: Using Multicultural Dimensions to Teach Astronomy
• ASP: What If the Moon Didn't Exist?
• ASP: To Every Season There is a Reason