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• Orbital Properties of the Solar System
• Formation of the Earth's Moon
• Historical Cosmologies

Subject of Astronomy. ... Celestial Sphere. ... Spherical Frames of Reference: Horisontal and Equatorial Coordinates, Ecliptical System. ... Transformation of Celestial Coordinates. ... Change of Object Coordinates as a Result of Diurnal Rotation of Celestial Sphere. Phenomenons, Which Lead to Celestial Coordinates Change. ... Motion of Equator, Ecliptic, and Their Poles. ... Diurnal Solar Motion on Different Latitudes. ... Time Equation. ... Apparent Motions and Configuration of Planets. ...

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• Spherical and Practical Astronomy
• Space Geodesy

EXCERPT from BIENNIAL REVIEW REPORT 1997ґ1998 Agris J. Kalnajs June 17, 1999 1 1 Research conducted and proposed 1.1 Star Streaming The Hipparcos data was released in 1997. The top panel of Figure 1 shows a plot of the tangential velocity components along the Galactic plane in the direction pointed to by the Galactic longitude l. These stars, with distance errors less than 10%, are within 100 parsecs of the Sun and have a B - V < 0.8 . ... Such streaming will occur naturally in a barred galaxy. ...

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• http://www.mso.anu.edu.au/pfrancis/phys1101/Lectures/L16/Lecture16.pdf
• http://www.mso.anu.edu.au/pfrancis/roleplay/MysteryPlanet/Orbits.doc
• http://www.mso.anu.edu.au/pfrancis/roleplay/MysteryPlanet/Orbits.PDF

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2011 February 23 . The Solar System from MESSENGER . ... Nearly such a view was taken recently from the MESSENGER spacecraft currently orbiting the Sun from the distance of Mercury . ... MESSENGER, which has flown by Mercury three times now, is on schedule to enter orbit around the Solar System's innermost planet next month. ... About APOD | ...

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• APOD: 2011 March 14 - Spacecrafts Streak Over Colorado
• APOD: 2000 July 25 - Why Stars Twinkle
• APOD: 2009 October 20 - A Solar Prominence Erupts in STEREO

Stellarium 0.12.3 . ... StelCircleArcRenderer Class Reference . Provides functions to draw circle arcs using StelRenderer . ... drawGreatCircleArc (const Vec3d &start, const Vec3d &stop, const SphericalCap *clippingCap=NULL, void(*viewportEdgeIntersectCallback)(const Vec3d &screenPos, const Vec3d &direction, void *userData)=NULL, void *userData=NULL) . ... Create a circle arc renderer to draw multiple circle arcs . ... void(*)(const Vec3d &screenPos, const Vec3d &direction, void *userData)  . ...

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• Stellarium: SphericalRegionP Class Reference

In this method the fields outside and inside a particle are represented by expansions in term of proper basis functions (practically always the vector spherical harmonics). Since the particle surface does not coincide with the coordinate surface, it is impossible to satisfy the boundary conditions exactly, and the expansions are limited by a finite number of terms, and the boundary conditions are considered in a finite set of points (matching points). ...

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... Posts tagged ?Point Process? ... Unusually, this week finds an astro-ph paper written by a statistics professor addressing the K-function to explore the mystery of the universe. [astro-ph:0804.3044] J.M. Loh . ... Algorithms arXiv Astro Bad AstroStat Bayesian CHASC Cross-Cultural Data Processing Fitting Frequentist Galaxies gamma-ray High-Energy Imaging Jargon Job Languages MC MCMC Meta Methods Misc News Nuggets Objects Optical Physics Quotes Spectral Stars Stat Timing Uncertainty X-ray . ...

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• The AstroStat Slog Blog Archive [ArXiv] Ripley?s K-function
• The AstroStat Slog break points
• Vertical Structure of the Secondary: Hydrostatic Model

University Satellites and . Space Science Education . ... Two micro-spacecraft constellation with solar sails partially compensating the solar gravity allow their placement in the points along the Sun-Earth line behind the standard L1 point, i.e. further out from the Earth and closer to the Sun. The distances of the placement from the Earth and the base distances between such satellites depend on the ratios of their mass to the sail area. ...

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• Space Scientific and Education project of Lomonosov Moscow State University
• University Satellites and Space Science Education '2006 I

... This is usually defined as the direction pointing toward the center of the primary body. ... NODE: The place where the plane of one orbit crosses the plane of another. ... ORBITAL PLANE: The flat surface that would result if every point on the orbit of a body was connected to the center of its primary. ... PENUMBRA: The edge of the primary body's shadow. ... PERIOD : The time required for one body to orbit the primary body. ... PROBE: A vessel designed to pass and observe an astronomical object. ...

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• RAS Glossary A to C
• Astronomical Glossary - J thru M
• Astronomical Glossary - D - F

... The timetable for the Huygens landing/splashdown (quoting Jacquie Milligan) is: The following events take place from 09:00 GMT on Friday 14th January 2005 but times are approximate: 09:07 - Huygens ' final journey will begin when it enters Titan's atmosphere 09:11 - Pilot, then main, parachute deployed 09:12 - Huygens begins transmitting data back to Cassini 09:26 - Main parachute separates and the stabiliser parachute deployed 09:42 - ... Terry Moseley . ...

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• Armagh Astropark
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... S.P. KOROLEV ROCKET AND SPACE CORPORATION ENERGIA . ... OAO RSC "Energia" . ... Company's History . ... ISS Russian Segment . ... News . ... On Monday, December 21, RSC Energia specialists for the first time in the history of operation of the cargo and crew transportation spacecraft of Progress and Soyuz type ran a communications session with the new-series spacecraft Progress MS via a relay satellite. ... RSC Energia: Progress MS-02 docked with the ISS.' ... 2015 JSC "S.P. Korolev RSC "Energia" . ...

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• INTERNATIONAL SPACE STATION
• S.P.Korolev RSC Energia - LAUNCHERS
• RSC "Energia" - Land Launch

RESEARCH OF EQUILIBRIUM STATE OF SPACE TETHER SSTEM CONSIDERING ATMOSPHERIC D RAG D , L A, Cq N P U The equilibrium equations of tether and subsatellite will be given with the consideration of tether mass, tether deformation and atmospheric drag. Space tether system equilibrium state will be obtained through solving the equilibrium equations of tether and subsatellite. ... Space tether system equilibrium state is obtained by calculating Tether and payload equilibrium state equations. ...

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• Spacecraft 'Aist-2D' can be 'seen' through the earth
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• System of zero gravity state on the spacecraft 'Photon M4'

... Contents . ... Sidereal time . ... Mean longitude of the Moon, mean elements of the Moon's orbit and equator . ... Ephemeris for physical observations of the Sun . ... Ephemeris for physical observations of the Moon . ... Matrix elements for conversion to CIRS . ... Conversion of mean time to sidereal time (with accuracy 0.01 s ) . ... Conversion of sidereal time to mean time (with accuracy 0.01 s ) . ... Conversion of mean time to sidereal time (with accuracy 0.001 s and 0.0001 s ) . ...

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• AY2015 (contents)
• AY2012 (contents)
• AY2014 (contents)

... Search . ... Astrophysics Group . Research . ... Research and Instrumentation . ... While this seems an extraordinary endeavour, in light of what we have learnt about Solar System planets, only a handful of key ingredients are required to start characterising an exoplanet. ... The NGTS project is a partnership between the University of Cambridge, Queen?s University Belfast, University of Warwick, University of Leicester, Observatoire de Geneve, DLR (Berlin) and Universidad Catolica de Chile. ...

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• G332.4-0.4
• G327.6+14.6

... Moon Phase below . ... ARTICLE: Why the moon always shows us the same face . ... Before you continue reading, you should know that this was not always the case, i.e. the Moon once was rotating with respect to the Earth, so that on every night a terrestrial observer (if there was one, because this was long, long before mankind appeared on our planet, and even before any major animals had appeared) saw another face of the Moon. ... Figure 1 (not to scale) shows how we can imagine the system Earth-Moon...

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LIPSKIY-RODIONOVA' LUNAR ANTIPODES AS PRECURSORS OF A REGULAR WAVE PLANETOLOGY G.G.Kochemasov IGEM of the Russian Academy of Sciences, Moscow, Russia kochem@igem.ru / Fax: (009)(095)230 21 79 The first observations of the lunar far side allowed to compare it with the near side and draw very important conclusions in the very beginning of planetary studies based on spacecrafts. ... Celestial bodies are dichotomic. ... The concept of celestial bodies includes Sun (a star) as one of them. ...

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• http://selena.sai.msu.ru/Symposium/lipskiy.pdf
• http://selena.sai.msu.ru/Shev/Publications/ms38/ms083.pdf
• http://selena.sai.msu.ru/Rod/Publications/ms40/21_Dolitsky_etal.pdf

Giant Jupiter. Jupiter . ... Jupiter has no solid surface that is why speaking about its dimensious point the radius of the upper border line of the clouds, where the presseru is about 10 KPa; radius of Jupiter on the equator is 71400 km. ... The Jupiter satellites. ... Nowadays 16 satellites of the Jupiter are known: Adrastea, Mitis, Amaltea , Phina,then 4 Galilei satellites: Io , Europe , Hanimed , Callisto , Leda, Aimalia, Zicitea, Elara, Ananke, Carme, Pasipe and Sinope. ... Jupiter's ring. ...

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• urane
• yeare
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THE STUDY OF THE PIONEER ANOMALY THE STUDY OF THE PIONEER ANOMALY The Pioneer Anomaly : Effect, New Data and New Investigation Slava G. Turyshev Jet Propulsion Laboratory, California Institute of Technology Seminar at the Sternberg Astronomical Institute Moscow State University, Moscow, 6 February 2007 1 THE STUDY OF THE PIONEER ANOMALY THE STUDY OF THE PIONEER ... Are they relevant to the Pioneer anomaly? ...

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• IDL programs
• GMATCH project
• Jupiter Outer Satellite Orbit Ephemerides.

... Code of participant Assess the color of the stars and mark accordingly it with a "X": White UMi And Ari Cyg Tau Answer: Blue Yellow Red 10. ... Specify direction to the points of intersection of the ecliptic and the equator. ... Observations with telescope 12. Point your telescope to the M45. ... Classify the object as one of the following: open cluster (OC), a globular cluster (GC), an emission nebula (EN) and planetary nebula (PN). ... Estimate the distance between the stars in arc minutes. ...

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• III International Astronomy Olympiad, Problems to solve
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• Laboratory of Nonequilbrium Electron Processes (LNEP)

... This section describes the remaining GnomeCanvasItem methods, including event , point , bounds , realize , unrealize , map , and unmap . ... Here is the point method for GnomeCanvasRect : . static double gnome_ canvas _rect_ point ( GnomeCanvasItem * item , double x, double y, int cx, int cy, GnomeCanvasItem **actual_ item ) { GnomeCanvasRE *re; double x1, y1, x2, y2; double hwidth ; double dx, dy; double tmp; re = GNOME_ CANVAS _RE ( item ); *actual_ item = ...

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• Cosmology FAQ: How can the Universe be infinite if it was all concentrated into
• Entry points
• Doubly Linked Lists