... 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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• Armagh Observatory
• Planet Earth: Our Place in Space | International Year of Astronomy in Ireland |
• Sun Earth Day

... NASA , NSF Explanation: Is our Earth unique? In continuing efforts to answer this question, astronomers have now discovered an Earth-like planet orbiting a distant normal star. ... Slight, fast, but regular wobbles of nearby small M - dwarf star Gliese 876 showed evidence for a planet with a likely mass slightly higher than a minimum six times the mass of Earth. ... Publications with keywords: planets - Earth - Gliese 876 . Publications with words: planets - Earth - Gliese 876 . ...

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• A Message From Earth
• Where People Live on Planet Earth
• A Message from Earth

... Each day a different image or photograph of our fascinating universe is featured, along with a brief explanation written by a professional astronomer. 2012 February 19 . A Message From Earth . ... Arecibo Observatory ( Cornell , NAIC ) . ... This attempt at extraterrestrial communication was mostly ceremonial - humanity regularly broadcasts radio and television signals out into space accidentally. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2001 February 4 - Welcome to Planet Earth
• APOD: 2005 June 14 - Gliese 876 System Includes Large Terrestrial Planet
• APOD: 2003 March 5 - Where People Live on Planet Earth

Astronotes Armagh Planetarium's Stellar Blog! ... Solar System . Sun . ... March . ... The extent of the solar eclipse of 3 November?а 2013 at 13:22 UTC as seen from Accra, Ghana. We will see a similar sight.?а (Image credit: Kwabena under Creative Commons Licence) . ... Your viewing location is not important as long as it offers an unobstructed view of the south eastern sky.. ... You can use ?eclipse glasses? to view the Sun, these are made from aluminized Mylar filter material. ...

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• Kepler-11: a strange and crowded planetary system | Astronotes
• Kepler-10c: the First Mega-Earth | Astronotes
• Earth Satellites | Astronotes

... Asteroid . ... In case you didn't hear about it, which you probably didn't: On Jan. 7, an asteroid 1,000 feet across -- nearly three times the current diameter of Marlon Brando -- barely missed the Earth, which is most likely your planet of residence. ... What if this asteroid had hit the Earth? ... As it happens, the American Astronomical Society was holding a conference in Washington AT THE VERY SAME TIME as the asteroid nearly hit the Earth. ...

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... For a timeline of the exploration of the magnetic environment of the Earth, Sun and Planets, see here . ... Galileo Galilei (1564-1642) builds the first astronomical telescope and observes for the first time craters on the Moon, satellites around Jupiter, and the way Venus goes through phases like the Moon (crescent, etc.) ... 17 December--First successful flight by the Wright brothers at Kitty Hawk, North Carolina. ... 16 March--Goddard launches his first liquid-fuel rocket. ...

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• FAQ: "The Great Magnet, the Earth"
• Satellites which look down and observe Earth
• The Earth's Magnetosphere

lsst.tcc   1.2.2-3-g89ecb63 . ... Files . ... include . ... earth.h . ... 5   #include <boost/tr1/array.hpp> // so array works with old and new compilers . ... 16   std::tr1::array<double, 3> startTAI ; // TAI date of start of UTC_day and the next two UTC days (MJD, sec) . 17   std::tr1::array<double, 2> ut1_taiIntercept ; // UT1-TAI intercept at TAI[i] (sec) . 18   std::tr1::array<double, 2> poleInterceptX ; // pole x offset intercept at TAI[i] (deg) . ... std::tr1::array< double, 3 > . ...

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• lsst.tcc: include/tcc/earth.h File Reference
• lsst.tcc: src/earth.cc Source File
• lsst.tcc: tcc::Earth Class Reference

... Planet Finder Options I: Linear Nulling Arrays for Studying Earth-Like Planets . ... Missions . ... Future Missions and . ... Missions Office . ... This paper shows options for configuring a symmetric linear nulling array as a Planet Finder. Of special interest are linked in-line pairs of identical sub-arrays with a quarter wave phase shift between them and staggered by half an element spacing. ...

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• Institute for Planets and Life
• Comparing Earth.html.document
• The Document Resources of Purple Mountain Observatory Library

... ATNF Home . ... About ATNF overview . ... Australia Telescope Steering Committee . ... Murchison Radio-astronomy Observatory . ... Parkes radio telescope . ... Parkes | ... Cosmic engine for senior students . ... The Sun . The Sun is vital for life on Earth. ... The Sun is a typical star, emitting electromagnetic radiation and particles that influence the Earth . ... In the meantime you can view material on the Sun and its influence on Earth written for the first version of the new syllabus here . ...

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• ASKAP News
• CASS Publications 2012
• CASS Publications 2013

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• Venus and Mars
• All about Jupiter
• Geothermal Energy

... Staff . ... Cosmic dust has been observed both in emission and extinction everywhere in our Galaxy as well as in many other galaxies. ... Dust grains are classically thought to form in the winds of Asymptotic Giant Branch (AGB) stars. However, nowadays there is increasing observational evidence for notable dust formation in Supernovae (SNe). ... Hence the observed dust mass of 0.7вИТ0.9M вКЩ in this source can be safely considered as indicative of the mass of freshly formed dust in SN ejecta. ...

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• Current Journals and online accesses
• APOD: 2000 October 28 - Moonrise, Planet Earth
• Dust evolution across the CO snowline in a protoplanetary disk

... Jay Apt (Ph.D.) . NASA Astronaut (Former) . ... PUBLICATIONS: Dr. Apt shared his images and knowledge in the publication Earth in Orbit : NASA Astronauts Photograph the Earth , written in conjunction with NASA scientists Michael Helfert and Justin Wilkinson and published by the National Geographic Society. ... From 1976 to 1980 he was a staff member of the Center for Earth & Planetary Physics, Harvard University, supporting NASA s Pioneer Venus Mission by making temperature maps of Venus from Mt. ...

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• Astronaut Bio: Bruce McCandless II
• Astronaut Bio: Dale A. Gardner
• Astronaut Bio: Peter J. K. Wisoff 11/2001

... 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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• FAQ: "The Great Magnet, the Earth"
• Satellites which look down and observe Earth
• Lagrangian Points

... Science . ... Science Users Information > Science Activities > Science in Garching . ... Observing with ESO Telescopes . ... Data Handling and Products . ... Understanding the diversity and consequences of star and planet formation is a key area of research for ESO. ... Read more and see who is involved in this research area.. Stellar structure and evolution includes the internal structureof stars, the structure and dynamics of stellar atmospheres,as well as stellar winds and mass-loss. ... ESO . ...

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• ESO - ALMA
• ESO - Science Announcements
• High Resolution HST Images of Pluto and Charon (ESO Press Release 09/94)

What is a pulsar? ALFA Pulsar Surveys . General AO observing site , which contains the remote and pulsar observing sites (Note: the latter is now outdated. It will soon be replaced by an updated version). ... Control Interface Module for Arecibo (CIMA) . ... time_ao.dat - Latest clock correction files for the Arecibo Observatory - updated to 2013 July 01 . ... NAIC] [Astro Home] [Staff] [Observing] [Receivers] [ALFA] [RFI] [Data] [Memos] [Publications] [Calendar] [Contacts] . ...

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• solar system exhibit
• VLBI at Arecibo Observatory
• Solar System Studies at AO

Michele Bannister . Other research . ... The mutual events of Haumea . The dwarf planet Haumea is the parent of a collisional family that includes its two moons, Hi'iaka and Namaka. ... The arid and windswept McMurdo Dry Valleys of Antarctica are carpeted with the polygons of patterned ground , a geological formation that is also seen on the northern plains of the planet Mars. ... I worked to understand the influence that buried masses of ice have on the development of patterned ground. ...

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• Siding Spring Survey
• Home Page of Raquel Salmeron
• Philip Lah's Research

... 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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• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Info
• Phil Plait's Bad Astronomy: Bad News

... Central Astronomical Observatory of the Russian Academy of Sciences at Pulkovo organizes All-Russian annual conference "Solar and Solar-Terrestrial Physics - 2008", which will take place in Pulkovo (Saint-Petersburg) from 7 to 12 July 2008. ... Subjects of the conference include a wide range of problems of solar activity and solar-terrestrial links. ... A joint Russian-Polish seminar on solar-terrestrial physics are also supposed to be held in the frame of the conference. ... For every report) 1. ...

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• Pulkovo NEO Page: General Information
• Pulkovo EOP and Reference Systems Analysis Center (PERSAC)
• Pulkovo Observatory, Laboratory of Radioastrometry and Geodynamics,...

The AstroGuide . ... AstroGuide | ... AstroGuide Listing . ... See many more Astronomy Listings by: Category or Alphabet . LONEOS is a system designed to find Earth-crossing asteroids (ECAs) and comets (ECCs), collectively known as near-Earth objects (NEOs). ... Listed Since July 15, 1998 . ... Web Site . http://www.lowell.edu/users/elgb/loneos_disc.html . ... Web . www.astronomy.net . About Astronomy Net | ... dbHTML," "AstroGuide," "ASTRONOMY.NET" & "VA.NET" . ...

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• U.S. Naval Observatory, AstroGuide Listing
• Astronomy articles, forums, listings, and other resources about Astronomy.
• Big Bear Solar Observatory, AstroGuide Listing

The basic problems of the Laboratory are connected with researches of dynamics of minor planets and comets. ... THE ORBIT IMPROVEMENT of minor planets from optical and radar observations, . the utilization of minor planet observations for THE DETERMINATION OF ORIENTATION OF STAR CATALOGUES and DETERMINATION OF MASSES OF MINOR PLANETS BY DYNAMICAL METHOD, . THE ESTIMATION OF COLLISION PROBABILITY of minor planets with other bodies and with each other, . ...

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• (Untitled)
• Keywords_115
• IAA EOP Service