... 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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• Planetary alignment

... Kepler s Suns and Planets . ... Credit Copyright: Jason Rowe , Kepler Mission Explanation: Using the prolific planet hunting Kepler spacecraft, astronomers have discovered 1,235 candidate planets orbiting other suns since the Kepler mission's search for Earth-like worlds began in 2009 . ... NASA Official: Jay Norris. ... Publications with keywords: extrasolar planet - kepler - transit . Publications with words: extrasolar planet - kepler - transit . ... Kepler 78b: Earth Sized Planet Discovered . ...

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• Earth size Kepler 186f
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• Extrasolar Super Earth Gliese 1214b Might Hold Water

... Exoplanets . ... Artists impression of the blue exoplanet. ... This exoplanet is located in the constellation of Vulpecula, the fox, a faint pattern inside the Summer Triangle.ТљТљ This planet is a not too distant 63 light years away so has been studied by space-based telescopes.Тљ Data collected from Hubbleт??s Imaging Spectrograph (STIS) when this planet moved behind its star showed that in the shadow of the star the light reflected from HD 189733b reduced into the blue part of the spectrum. ...

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• Kepler-10b: world of lava oceans? | Astronotes
• Kepler-10c: the First Mega-Earth | Astronotes
• Kepler-11: a strange and crowded planetary system | Astronotes

... 2011 March 29 . Kepler's Suns and Planets . ... Explanation: Using the prolific planet hunting Kepler spacecraft, astronomers have discovered 1,235 candidate planets orbiting other suns since the Kepler mission's search for Earth-like worlds began in 2009 . ... In this remarkable illustration , all of Kepler's planet candidates are shown in transit with their parent stars ordered by size from top left to bottom right. ... About APOD | ... NASA Official: Phillip Newman Specific rights apply . ...

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• APOD: 2008 September 3 - 31 Million Miles from Planet Earth
• APOD: 2013 September 10 - Extrasolar Super Earth Gliese 1214b Might Hold Water
• APOD: 2016 March 11 - Lunar Shadow Transit

... Historical Data . Orbital Data . Physical Data . ... Sun . ... Jupiter . ... Saturn . ... William Herschel . ... William Cranch Bond . ... William Henry Pickering . Uranus . ... 1986 . Voyager 2 . ... William Lassell . ... J. Christy Key: Name Name of the planet or satellite. Orbits Sun or planet about which it orbits. ...

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• Near Earth Asteroid Rendezvous (NEAR)
• Asteroid Introduction
• Mariner 4

T he Siding Spring Survey (SSS) is a Near-Earth Object search program that utilises the 0.5-m Uppsala Schmidt Telescope at Siding Spring Observatory, N.S.W., Australia. ... The mission of the Siding Spring Survey is to contribute to the inventory of near-earth objects (NEOs), or more specifically, the potentially hazardous asteroids (PHAs) and comets (PHOs) that may pose a threat of impact and thus harm to civilization. ... Based on the CSS Mission page . ... Siding Spring Survey Main Page . ...

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• Michele Bannister - Research
• Scorched earth
• Mars with south polar ice cap at top

... Star Atlas . ... stars . ... Earth-like planets are right next door . Astronomers have found that 6 percent of red dwarf stars have habitable Earth-sized planets. ... Since red dwarf stars are so common, then statistically the closest Earth-like planet should be only 13 light-years away. ... Since red dwarfs are the most common stars in our galaxy, the closest Earth-like planet could be just 13 light-years away. т??We thought we would have to search vast distances to find an Earth-like planet. ...

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• New super-Earth in six-planet system may be just right to support life |
• Astronomy Magazine - Interactive Star Charts, Planets, Meteors, Comets,
• Do other planets have meteor showers like Earth has? Can we see them through

... 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: Bad TV
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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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• ASP: Mercury Spring 2011
• ASP: Black Holes to Blackboards: Getting a Global Sense
• ASP: The Universe At Your Fingertips Activities TOC

These include satellites which monitor the weather, such as the GOES series (one of which is shown on the right) of the US National Oceanic and Atmospheric Administration (NOAA). ... To this class also belong "spy satellites" which observe the ground from low circular orbits. ... The Canadian satellite Alouette in 1962 bounced radio signals off the top of the ionosphere, and UARS (Upper Atmosphere Research Satellite) is currently studying the Earth atmosphere. ...

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• Earth [Oulu]
• Views of the Solar System
• Comet Shoemaker-Levy 9

... 29a. Satellite looking up . 29c. Satellites probing around . ... The US Air Force furthermore sponsors polar satellites of the DMSP series, scanning the cloud cover of the polar region and also studying ions and electrons of the magnetosphere. ... The Canadian satellite Alouette in 1962 bounced radio signals off the top of the ionosphere, and UARS (Upper Atmosphere Research Satellite) has studied the Earth atmosphere. ... Next Satellite Class: #29c Those observing local conditions . ...

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• Flight to Mars: the Return Trip
• Space physics cordinate systems
• The Exploration of the Earth's Magnetosphere

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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• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/m/ministry/quick.fix
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• http://crydee.sai.msu.ru/ftproot/pub/rec/music/lyrics/cs-uwp/h/helmet/meantime

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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. Aristarchus was extremely clever and also figured out a way to determine the ratio of distances between the earth and the moon and the earth and the sun. While wrong, at least he reasoned that the sun was much farther from the earth than the moon. Just Try and Follow this! . Summary of Greek Science .

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• Formation of the Earth
• Intelligent Life On Earth?
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... Shevchenko Vladislav Vladimirovich . ... Position: Head of Department of Lunar and Planetary Research, Sternberg State Astronomical Institute, Moscow University, Doctor of Physics and Mathematics. ... L. Johnson Space Center - Lunar and Planetary Institute. ... Sternberg State Astronomical Institute, Moscow University, Universitetsky 13, Moscow, 119899 , Russia, . ... V.I.Chikmachev, S.G.Pugacheva and V.V.Shevchenko, Sternberg State Astronomical Institute, Moscow University, Moscow, chik@sai.msu.ru ...

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• My trip to the conference “Near-Earth Astronomy -2003”, Terskol
• Yurii Naumovich Lipsky
• Ekaterina A. Kozlova

In ancient times the solar system was thought to be the whole Universe, so the study of planetary motions was cosmology. ... The planets other than the Moon and Sun generally move West to East through the stars, but occasionally stop and move in the opposite direction ( retrograde motion). In order to explain the retrograde motion of the planets, the geocentric model of the Solar System shown above puts the planets on small circles called epicycles . ...

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... Kepler is a mission designed to detect and characterize Earth-sized planets around solar-like stars. The sizes of the planets are determined from the decrease in light from a star that occurs during planetary transits, and the orbital period is determined from the repeatability of the transits. ... These goals are accomplished by continuously and simultaneously monitoring a single field of 140,000 stars for evidence of brightness changes caused by transits of Earth-sized or larger planets. ...

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• http://www.stsci.edu/stsci/meetings/planets/abs/prog43.html
• Planet Finder Options I: Linear Nulling Arrays for Studying Earth-Like Planets
• Detection of Earth-like Planets with the COROT Space Mission

... Р?С?С?С?Р?Р?Р?Р?РеС?Р?С?Р?РеР? ... Launched on February 17, 1996, the Near Earth Asteroid Rendezvous (NEAR) mission is to be the first of NASA's Discovery missions, a series of small-scale spacecraft designed to proceed from development to flight in under three years for a cost of less than $150 million. ... The ultimate goal of the mission is to rendezvous with and achieve orbit around the near Earth asteroid 433 Eros in February, 1999, and study the asteroid for approximately one year. ...

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Class 1 Introduction, Background History of Modern Astronomy The Night Sky, Eclipses and the Seasons Kepler's Laws Newtonian Gravity General Relativity Matter and Light Telescopes Class 2 Solar System Characteristics Formation Exosolar Planets Class 3 Stars The Sun Stellar Evolution of Low and High Mass Stars Deaths of Stars Exotic Stars Class 4 Galaxies Galaxy Classification Formation of Galaxies Galactic Evolution ... So far, one planet has been studied by this method. ...

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• Lecture Series 2010-2011 ? ?Greening the Earth Using Space Resources? by Greg

... Not so long ago, Space Scoop explained that right this moment you re hurtling through space at hundreds of thousands of kilometres per hour! ... We call the time it takes Earth to complete one full rotation a day . ... But the length of one rotation and one orbit can be different on other planets. For example, one orbit (or year ) on Mercury takes just 87 Earth days. ... The length of day is also different on other planets. For example, one day on Jupiter lasts just 10 Earth hours. ...

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• The Earth-like Planet Gliese 581 c (artist's impression) | ESO
• Los Cielos de Am , The darkest sky and the two galactic hemispheres
• The Earth-like Planet Gliese 581 c (artist's impression)