... The simple pair of formulas derived in problem (8) . ... around the z axis, , giving the above result and producing (x',y'), while z remains the same, so that in the new system z' = z. Then we rotate (x',y',z') by an angle ? around the x' axis, using the same formulas but with (y',z', ?) in place of (x,y, ?) ... Knowing its semi-major axis a, eccentricity e and mean anomaly M, one can derive its true anomaly f (using appropriate formulas, not given in #12a) and from it the radial distance r . ...

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• The Exploration of the Earth's Magnetosphere"
• The Dynamo Process
• The Space Tether Experiment

Proceedings of the Particle Physics and Early Universe Conference (PPEUC). For this paper: postscript PPEUC CMB index 1 Introduction .. ... A new statistic is discussed, designed to detect isolated coherent step-like discontinuities produced by cosmic strings present at late times. ... The statistical variable considered is the Sample Mean Difference (SMD) between large neighbouring sectors of CMB maps, separated by straight lines in two dimensional maps and points in one dimensional maps. ...

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• NVSS Image ftp service Documentation Help for NVSS Image ftp service
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... It includes level converters and a optional radio modem designed to decode the radio timecode signals transmitted by the Canadian time and frequency station CHU. A complete set of schematics, PCB artwork, drill templates is in the pub/ntp/gadget.tar.Z file on ftp.udel.edu. ... One of these converts a TTL positive edge into a fixed- width pulse at EIA levels and is for use with a timecode receiver or oscillator including a TTL PPS output. ... See the schematic diagram gadget.s01 for reference. ...

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• GIMP Tip: Giving images a canvas texture
• APOD: 2000 June 8 - Active Regions, CMEs, and X Class Flares
• APOD: 2005 July 7 - Fire Glow and Star Trails at Sunset Crater

... For us to see them from such great distances, quasars must be producing enormous energy -- they are about 1000 times brighter than an average galaxy! ... One of their choices for the energy source of quasars was a black hole. ... On the one hand, it may seem difficult to think that mere friction between bits of matter could account for the energy of a quasar, but, on the other hand, gravity is unimaginably strong near a black hole. ... How does matter actually rush towards the black hole? ...

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• ASP: National Astronomy Education Projects
• ASP: An Ancient Universe - The Age of the Oldest Stars
• ASP: Black Holes

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Follow-up observations with the University of Washington 0.76 m telescope at Manastash Ridge Observatory (MRO) of the Sloan Digital Sky Survey (SDSS) cataclysmic variable (CV) SDSS J170053+400358 are presented. ... They estimate that the dimming amounted to about 0.028 mag (using two comparison stars that were each about 4 mag fainter than HD 209458). only UW affiliated authors have been listed, student researchers are marked with an ``*'' . ... XTE J1859+226" UW affiliated authors: *Kevin Krisciunas. ...

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• Untitled Document
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• Tilt and Sag Coefficients: 14 Apr 2000

... This page will contain a form to pass parameter values for a on-line working code producing figures illustrating the dependence of optical properties of different scatterers on their parameters. Specify the parameters and press start calculation button to produce a figure. ... Independent variable: x v a/b alpha Re(m)? another? ... Number of curves: 1 2 3 . ... Curve #1: . Particle shape: sphere spheroid another? TE/TM mode: TE TM . Other parameters: x= Re(m)= Im(m)= a/b= alpha= . ...

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• Amorphous magnesium silicate
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• Database of Optical Properties -- Level: subsubpage

... Aurora - June 23, 2015 . Sunspot, Active Region AR2371, produced an M2 class flare and sent a coronal mass ejection toward the Earth on June 21st. ... A meteor trail, airplane and clouds are also in the image. 30-second image with dark slide, Samyang 14mm, f/2.8 lens imaged at f/5.6, Unmodified Canon T1i on a Tripod, No filter, ISO 800, processed with Adobe Photoshop. 00: 17 hrs EDT, 23 June 2015, Harvard, MA. ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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• Sky Maps

... 8, ``Celestial Mechanics'', 2002 The ephemerides server of the Institut de m'ecanique c'eleste et de calcul des 'eph'em'erides N. Baron, J. E. Arlot Institut de m'ecanique c'eleste et de calcul des 'eph'em'erides, Paris, France The Institut de m'ecanique c'eleste et de calcul des 'eph'em'erides (IMCCE), formerly known as Bureau des longitudes, produces, since its creation (1795), the French ephemerides for most of the bodies of the solar system. ... The code of several theoretical models is provided...

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• Keywords_211
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... The Digitized Sky Survey is now available on CD-ROMs and will be on the ST ScI archive. ... ST ScI has digitized Schmidt plates of the entire Sky. ... The software then accesses the data, decompresses the scans and returns the data in a form of a photographic intensity as a function of x and y plate pixel coordinates. ... accesses the Digitized Sky Survey (DSS) CD ROMs and decompressed the data returning a photographic intensity as a function of x and y pixel coordinates. ...

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• The STScI HST Astrometry Pipeline
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... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... History . Brief History of Rocket and Space Technology . ... Flights Chronology . ... ISS Russian Segment . ... History of flights . ... Behavior of mesenchymal truncal cells from bone marrow during space flight. ... Effects of space flight environment on the lactolen producer strain. ... Investigation of space flight factors effect on bacteriophages. ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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• INTERNATIONAL SPACE STATION
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Software Forum Message . Forums: . ... Astronomy Software Discussion | Post . ... NightCal Fix . ... Post Message | Back to Thread Topics | ... We've just had a look at the first external website to reproduce one our our calendars and realised that NightCal is missing . ... kB) from the Nightcal website at www.nightcal.co.uk. ... www.astronomy.net . ... Forum posts are Copyright their authors as specified in the heading above the post. "dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• String Cosmology Questions For Bruce - an Astronomy Net Bigbang Forum Message
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MICROSCOPES . ... In the last three to five years, LOMO has developed new lines of products, including new families of biological, fluorescent, and polarizing microscopes, night vision devices, consumer Maksutov telescopes, etc. ... 1939 Company introduces its first student and biological microscopes. as well as its first manual movie camera . ... 1956 LOMO produces its first wide-screen-format movie projector and introduces its first fluorescent microscope for chemical structure analysis. ...

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• Professional Telescopes
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... Moscow State University, Sternberg Astronomical Institute . ... Moscow State University, Sternberg Astronomical Institute, Cremian Laboratory . Dr. Vladimir Amirhanyan - Soft, Radioobservations, Interpretations . Sternberg Astronomical Institute . Aleksandr Belinskiy - mechanics, soft, observations, interpretation . ... Mikhaylo Kuznecov - mechanics, soft, observations, interpretation . ... Moscow State University, Physics Department . ... Gleb Antipov - observations, interpretation . ...

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• Images

... In the course of the BURAN orbiter development, suborbital and orbital launches of BOR-4 and BOR-5 flight vehicles have been produced for aerodynamic analysis and working capacity of thermal protection structures verification. ... The flights of the SPIRAL prototype and BOR-4 and BOR-5 flying vehicles have allowed not only to speed up the BURAN orbiter development, but also to justify the choice of the aerodynamic scheme of the orbital stage of the advanced MAKS aerospace system. ... Buran Orbiter ....

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• Molniya-1 Triplane Aircraft

... Research . ... Scientific instrumentation of main satellite APEX . ... electron accelerator . ... Russian Academy of Sciences,Troitsk,(IZMIRAN); . Electrical welding Institute named after E.O.Paton , National Academy of Sciences of Ukraine;Kiev . ... plasma gun . ... IZMIRAN . ... Measurement of temperature and distribution on energy of electrons of cold plasma with T =0.1- 10 eV and resolution 15 K o for 50 ms . Space Research Institute, Russian Academy of Sciences,Moscow, (IKI RAN) . ...

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• The Basille Day 2000 Event
• APEX/Intro
• Mandelshtam

... Solar flare activity is produced by the processes of accumulation and release of energy in an active region. ... In the framework of study of solar active regions, producing powerful flares the researchers from the RATAN-600 radio telescope have detected sources with features in the form of a sharp drop in the intensity of polarized radiation in various parts of the recorded frequency range (2-16GHz), sometimes changing the sign of polarization. ...

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• Solar system sector, archive 2010

... We address a question if globular clusters (GC) in a protogalaxy could for some time evolve chemically as isolated systems, enriching themselves with heavy elements produced in first supernova events that follow initial star formation. We determine both the critical mass of a protoglobular cluster that is needed to retain the ejecta of the very first supernova, and the critical energy (i.e., number of supernovae) that is needed to expel the residual gas from a cluster of a given mass. ...

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• Abstract
• Density Wave
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... The Science Operation Department is composed of Astronomers, Telescope Instruments Operators(TIOs) and Data Handling Administrators(DHAs). ... Astronomers have proposed several methods to quantitatively measure the amount of turbulence above the telescope, which the most common ones is Differential Image Motion Monitor (DIMM). In optical testing, the Hartmann test is the common method to test the quality of optical components. ... Hartmann mask consists of 48 lenses. ...

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Radio Interferometry Principles . Radio Interferometry Signal Processing . ... A radio interferometer consists of a pair of directional antennas that are tuned to receive radio emissions from a source in a desired RF band. ... The antennas are pointed at the radio source of interest and are set up to receive the signal and process it into a form suitable for transmission to the correlator. ... In connected element interferometry, the digital signal goes directly to the correlator. ...

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