... Armagh Observatory, College Hill, Armagh BT61 9DG, +44 (0)28 3752 2928 . ... Risks Comparable to NEOs . ... The Increasing Rate of Discovery of Asteroids . ... Comet and Asteroid Collision Probabilities . ... Extreme albedo comets and the impact hazard (PDF Format) . ... Asteroid Impact Animations . ... Workshop on Scientific Requirements for Mitigation of Hazardous Comets and Asteroids - 2002 . ... The Spaceguard Survey Report, 1992 (PDF) . Tsunami from Asteroid/Comet Impacts . ...

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Astronomy Picture of the Day . Welcome to Planet Earth . ... 31.01.1999 . ... Credit Copyright: Apollo 17 Crew , NASA Explanation: Welcome to Planet Earth, the third planet from a star named the Sun . The Earth is shaped like a sphere and composed mostly of rock . Over 70 percent of the Earth's surface is water . ... Please enjoy your stay on Planet Earth. ... Publications with keywords: Earth - planet . Publications with words: Earth - planet . ... All the Water on Planet Earth . ...

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Astronotes Armagh Planetarium's Stellar Blog! ... Planets . ... Space Flight . ... Posted on March 26, 2013 | 4 Comments Many of us may recall captivating images of an enormous glass and steel superstructure making the headlines in the 90тАЩs, along with the tale of eight human test subjects who [ ] . Continue Reading.. ... Posted on May 1, 2012 | ... Posted on February 24, 2012 | ... 10 Comments Where does space begin? ... Posted on January 17, 2012 | ... Part of [ ] . ...

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spaceweb@oulu.fi - last update: 12 March 1999, 0935 UT (RR) . ... In first order the magnetic field created by this magnet is that of a dipole whose axis is tilted with respect to the spin axis by about 11 degrees. ... The difference between the dipole axis and geographic axis is one of the reasons why there are so many different coordinate systems needed to describe locations in space around the Earth. The area around the Earth governed by its magnetic field is called the magnetosphere . ...

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... 2000 October 28 . Moonrise, Planet Earth . Credit: STS-35 Crew, NASA . ... In the foreground, towering clouds of condensing water vapor mark the extent of the troposphere, the lowest layer of the planet's life-sustaining atmosphere . ... Moon and clouds are strong visual elements of many well known portraits of planet Earth , including Ansel Adams' famous "Moonrise, Hernandez, New Mexico" , photographed in 1941. ... About APOD | ... NASA Technical Rep.: ... A service of: LHEA at NASA / GSFC . ...

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... Bad Astronomy . ... Bitesize Astronomy . ... Bad Astro Store . ... Slacker Astronomy . ... Keep Bad Astronomy close to your heart, and help make me filthy rich. ... Life Under the Moon . ... Seeing Jupiter's Moons . ... Time Zones and the Spherical Earth . A Companion to the Earth? ... December 19, 1999) . ... Big Moon, Little Moon . ... How Big is the Moon? ... 14, 2000) . ... 2008 Phil Plait. ... Subscribe to the Bad Astronomy Newsletter! Talk about Bad Astronomy on the BA Bulletin Board! ...

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... Planets and Brown Dwarfs . ... Mission Definition . Ask anyone on the street to give an example of a planet, and they'll consider you a bit dim. ... Finally, if you ask "What is the exact scientific definition of 'planet'?", it turns out that nobody can answer it, because there really isn't one. ... The word itself means "wanderer" in Greek, and other cultures generally have words for "planet" with a similar meaning. So why isn't that good enough for us today? ...

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... Tonight's Sky . ... The Magazine . ... Star Atlas . ... An artificial comet holds secrets to Earths life . ... Astronomy for Kids . ... Observing springtime deep-sky objects with a large telescope . ... The planet has extreme temperature swings and perhaps active lava flows. ... A digital supplement to Astronomy magazine. ... Join TravelQuest International with Astronomy and Discover magazines on one of three great tour options surrounding this celestial spectacle . ... Astronomy Magazine . ...

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• As Earth was molten early during its formation, dense metals should have sunk

.

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The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . This project was established in mid-1998 to help coordinate, and provide a focal point for, the study of those comets and asteroids that can approach the Earth's orbit. ... Web Site . ... Unless otherwise specified, web site content Copyright 1994-2016 John Huggins All Rights Reserved . dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . are trademarks of John Huggins ...

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... comet nucleus. ... Very Long Baseline Interferometry (VLBI), Near Earth Objects (NEOs), cometary families , terrestrial type planets, collidings, transition of a comet nucleus , initial heliocentric parabolic orbit, heliocentric elliptical trajectory, a pairwise three dimensional two-body problem, the Sun - comet nucleus , terrestrial planet - comet nucleus , orbital parameters of a nucleus , sphere of influence of a ...

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... Научная панорама ? arxiv:0709.0752 Sky in Google Earth . ... arxiv:0709.0752 Sky in Google Earth (Sky in Google Earth: The Next Frontier in Astronomical Data Discovery and Visualization) . ... Описан проект <A HREF=" http://earth.google.com/sky/index.html ">Sky in Google Earth</A>. ... http://xray.sai.msu.ru/~polar/sci_rev/167.html#arxiv/0709.0752 . ... Еще они нам сказали, что image processing для DSS2 какие-то фонари в Гуггле делали 2 года!! ... А черт знает что там они делали два года. ...

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... Listed below are questions submitted by users of "The Exploration of the Earth's Magnetosphere" and the answers given to them. ... The ones included below are either of the sort that keeps coming up again and again--the danger of solar eruptions, the reversal of the Earth's magnetic field, etc.-- or else the answers make a special point, going into extra details which might interest other users. ... Radiation Belts and Manned Space Flight . ... Capturing the Energy of the Solar Wind . ...

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Planet Earth only came outside to watch the nightfall with the rain I heard you making patterns rhyme like some new romantic looking for the tv sound you'll see I'm right some other time look now, look all around , there's not sign of life voices, another sound , can you hear me now? this is planet earth , you're looking at planet earth bop bop bop bop bop ...

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... Rain, Rivers and the Icy Landscape of Titan . ... Thursday, Mar 14, 2013 at 8:00 PM . This month’s speaker will be Dr. Taylor Perron of the MIT Department of Earth, Atmospheric and Planetary Sciences whose research focuses on the physical processes that create landscapes, both on earth and on other planets and moons. ... Unlike rivers on Earth and Mars, Titan’s landscapes have been carved into water ice by liquid hydrocarbons. ... Mar . ... Copyright (c) Amateur Telescope Makers of Boston, Inc. ...

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... 3 ­ Sternberg State Astronomical Institute, Moscow, :jeanna@sai.msu.ru The graphic method of the analysis of an arrangement of linear structural elements on geographical and geological maps of continents (A.V.Dolitsky, [1]) has allowed to find out global stress fields of the past and among them one which directions (the main normal and maximal tangents) describe more than 80 % of all linear elements of a relief. ... The found poles share program way on density of an arrangement on 3-4 groups. ...

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... User Guide ] Task: planets Purpose: Print ephemerides of planets and the Sun. Categories: utility PLANETS is a MIRIAD task to report some parameters on solar system objects. ... Key: source This can be "sun" or the name of a major planet (excluding the Earth). ... No default. Key: epoch The time (UTC) for which information is required, in standard Miriad time format (yymmmdd.ddd or yymmmdd:hh:mm:ss.s). ... Key: telescop The name of an observatory used in computing rise and set times. ...

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Lectures . ... Home Lectures Lecture Series 2010-2011 Lecture Series 2010-2011 ? Greening the Earth Using Space Resources? by Greg Matloff . ... Lecture Series 2010-2011 . ... Beyond New York City . ... Observing Resources for Amateur Astronomers - Part 1: Beginning Observers . ... A History of the First Forty Years of the Amateur Astronomers Association . ... Amateur Astronomers Medal . ... 2016 Amateur Astronomers Association of New York Designed by Press Customizr Powered by . ...

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Internet Sites | Children's Books | ... Tilt of the Earth - Beautiful site explaning the tilt of the Earth. ... Nine Planets: Planet Data - It might be fun to discover how tilted the other planets are in the Solar System! ... Bill Nye the Science Guy-Episode: Climates - Learn a bit about the Earth's climates and make a model of a weather system. Weather Links for Teachers and Parents - Nick the Weather Dude's list of useful links about weather. ... Philomel Books, 1995. ... Tilt-A-World | ...

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Computer Ephemeris. Ephemeris for physical observations of the planets. Explanations. Each row of the table contains for date specified at 0h of Time Terrestrial Dynamical: . ... position angle of axis of planetary rotation (degrees) - 'P', . ... illumanated part of the disk - k, . ... position angle of disk point with minimal illumination (degrees), . longitude of central meridian of the disk (degrees) - 'merid1' - system I and so... phase correction (degrees). ...

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• Spherical and Practical Astronomy
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