... 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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... Bad Astronomy . ... Mad Science . ... Area of science: Astronomy . ... The answer depends on the shape of the path the Earth takes around the Sun. ... But really the Earth goes around the Sun, and the path it takes is called its orbit . After people figured out the Earth went around the Sun, they thought the Earth's orbit was a big circle. ... But the temperature does not depend much on how far we are from the Sun, but instead how the Earth is tilted as it goes around the Sun. ... 2008 Phil Plait. ...

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• Phil Plait's Bad Astronomy: Misconceptions
• Phil Plait's Bad Astronomy: Bitesize Astronomy
• Phil Plait's Bad Astronomy: Bad News

... Comet Schwassmann-Wachmann 3 Passes the Earth . ... Explanation: Rarely does a comet pass this close to Earth. Last week, dedicated astrofilmographers were able to take advantage of the close approach of crumbling 73P / Comet Schwassmann-Wachmann 3 to make time-lapse movies of the fast-moving comet. ... Fragment B of Comet Schwassmann-Wachmann 3 became just barely visible to the unaided eye two weeks ago but now is appearing to fade as the comet has moved past the Earth and nears the Sun. ...

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• APOD: 2013 September 10 - Extrasolar Super Earth Gliese 1214b Might Hold Water
• APOD: 2001 December 24 - Asteroid 1998 WT24 Passes Near Earth
• APOD: 2004 October 1 - Earth Nears Asteroid Toutatis

... Planets . ... Earth Satellites . ... The newly discovered ?mega-Earth? ... Its sibling, the lava world Kepler-10b, is in the background (the two planets? proximity is grossly exaggerated) .?а Kepler-10c has a diameter of about 29 000 km, 2.3 times as large as Earth, and weighs 17 times as much. ... The first mega-earth to be discovered is Kepler-10c which orbits a star lying about 560 light years from the Sun in the constellation Draco. ... Astronomers Find a New Type of Planet: The ?Mega-Earth? ...

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• Earth | Astronotes
• The Blue Planet | Astronotes
• Exoplanets | Astronotes

... SUN MOON MERCURY VENUS MARS, JUPITER SATURN . ... Mars . ... An artificial comet holds secrets to Earths life . ... Asteroid DayУ?т??т??s Don Yeomans: Will asteroid 2013 TX68 strike Earth? ... What would happen if a comet came as close to Earth as siding spring (C/2013 A1) did to Mars, and what would it look like? ... Longtime comet fans will recall Comet Hyakutake (C/1996 B2), which passed close to Earth in 1996 but still 100 times farther away than Siding Spring buzzed Mars. ...

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• As Earth was molten early during its formation, dense metals should have sunk
• Asteroid to safely pass close to Earth on Sunday | Astronomy.com
• Rosetta closes in on Earth | Astronomy.com

... Comet Schwassmann Wachmann 3 Passes the Earth . ... 23.05.2006 . ... Last week, dedicated astrofilmographers were able to take advantage of the close approach of crumbling 73P / Comet Schwassmann-Wachmann 3 to make time-lapse movies of the fast-moving comet. ... Fragment B of Comet Schwassmann-Wachmann 3 became just barely visible to the unaided eye two weeks ago but now is appearing to fade as the comet has moved past the Earth and nears the Sun. ... May 2006 . ... Publications with keywords: comet...

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• Астронет > Comet Schwassmann Wachmann 3 Passes the Earth
• Extrasolar Super Earth Gliese 1214b Might Hold Water
• Asteroid 2012 DA14 Passes the Earth

... Spacecraft . 29a. Satellite looking up . ... 29e. Explorers of distant space . Space Index . ... Many "down-looking" satellites also carry out local observations, among them Polar, Viking, Freja and satellites of the GOES and DMSP series. ... Other explorers of the distant magnetosphere have included the three ISEE spacecraft (International Sun-Earth Explorers), Polar in an elliptical polar orbit with cameras observing the polar aurora, and Image observing energetic neutral atoms. ...

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• FAQ: "The Great Magnet, the Earth"
• Early Warning of Interplanetary Disturbances
• The Exploration of the Earth's Magnetosphere"

КОСМИЧЕСКИЙ КАЛЕНДАРЬ ЯНВАРЯ 2000 ГОДА . ... Jan 01 - Year 2000 . Jan ?? ... Jan 01 - Asteroid 1996 AX1 Closest Approach To Earth (0.702 AU) . ... Jan 03 - Asteroid 3745 Petaev Closest Approach To Earth (1.862 AU) . ... Jan 05 - Asteroid 1999 VO11 Near-Earth Flyby (0.218 AU) . ... Jan 08 - Comet P/1998 VS24 (LINEAR) Closest Approach To Earth (2.915 AU) . ... Jan 12 -[Image][Dec 02] Asteroid 1999 WA2 Closest Approach To Earth (1.100 AU) . ... Jan 14 - Mercury Occults 53 Sgr (6.9 Magnitude Star) . ...

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... 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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• Winer Observatory - Observations of Near Earth Asteroid 2008QT3

... Listed below are questions submitted by users of "The Great Magnet, the Earth" and the answers given to them. ... In "The Exploration of the Earth's magnetosphere" on the magnetic environment of the Earth in space (a few Q duplicated here) . ... 11) Magnetic Shielding . ... 51) Can electricity be generated from the Earth's magnetic field? ... 9) Measuring Earth's magnetic field . ... 6) Reversals of the Earth's field (4 queries) . ... 42) Could generated electricity affect Earth's magnetic field? ...

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• Spacecraft Observing Earth's Space Environment
• Lagrangian Points
• Earth [Oulu]

... Arecibo Observatory took radar images of asteroid 1998 QE2 and its moon as the space rock sailed safely past earth. ... Both the asteroid and its moon passed 6 million kilometers (3.8 million miles) from earth. ... Radar images of asteroid 1998 QE2 (bottom) and its satellite (top) on June 6. ... Radar images of asteroid 1998 QE2 (center) and its satellite (bottom left) on June 7. ... Radar image from June 7 showing the satellite moving past the primary. ...

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• asteroid 200YU55
• Arecibo Observatory observations of 2005 YU55
• Arecibo Radar Discovers Triple Near-Earth Asteroid

... 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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• Полосы полных солнечных затмений для Google Earth - Астрономия и компьютеры

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• Intelligent Life On Earth?
• The Radio Signature of the Earth
• Formation of the Earth

Asteroid 2055 YU55 passes close by Earth; how close did it get? ... As Elizabeth Flock reported: An asteroid the size of an aircraft carrier missed Earth by only 200,000 miles as it flew by Tuesday night the closest an asteroid has been to Earth in 200 years Asteroid 2005 YU55, as it has been dubbed, streaked by at about 30,000 mph, but some scientists and lucky amateur astronomers caught a glimpse in their telescopes, where they saw strange structures on the asteroid\u2019s dark-colored surface. ...

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• http://www.astro.louisville.edu/shared_skies/archive/select/asteroids/yu55/20111108/yu55_20111109_wp.pdf

... Launch Date: 1968-09-14 . ... Zond 5 was launched from a Tyazheliy Sputnik in Earth parking orbit to make scientific probes during a lunar flyby and to return to Earth. ... The closest distance was 1,950 kilometers (1,212 miles). High-quality photographs of the Earth were taken at a distance of 90,000 kilometers (56,000 miles). ... On September 21, 1968, the re-entry capsule entered the Earth's atmosphere, braked aerodynamically, and deployed parachutes at 7 kilometers (4.35 miles) . ...

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• Martian Clouds
• Asteroid Introduction
• Educator's Guide to Moon Phases

... HST Phase II Proposal Instructions for Cycle 20 > Chapter 4: Solar System Targets > 4.5 Ephemeris Center [Ephem_Center] . ... HST?s on-board software then computes a correction for the parallax induced by the telescope?s orbit. ... However, HST?s on-board parallax correction may be insufficient for a target closer than 3.8 million kilometers. ... An HST-centric target ephemeris is generated. ... An HST-centric ephemeris should be specified only for very close targets such as the Moon. ...

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• HRC Earth flats
• . Reaching, and Striding Beyond Earth .
• HST Primer for Cycle 22

NASA's Near-Earth Object Program Office . ... This paper briefly presents the history, interactions and current activities of NASA's Near-Earth Object Program Office. The Program Office utilizes near-Earth object (NEO) astrometric data from the international community, received from the Minor Planet Center, to refine orbits and provide predictions for coming Earth close approaches. ... Recent studies of some of the issues surrounding the deflection of an Earth threatening NEO are also described. ...

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• Keywords_272
• Keywords_115
• LAB Space Geodesy and Earth Rotation-OCCAM/GROSS

... Our restless globe and its companion. ... A Look at the Motions of the Earth in Space and How They Are Changing . ... Earth's rotation as viewed from above the north and south geographic poles. ... The Earth revolves around the Sun-also counterclockwise viewed from above the North Pole, clockwise viewed from the South Pole-to give us our years (see Figure 2 ). The plane of the Earth's orbit is called the ecliptic (where eclipses happen). ... Earth's orbit as viewed from the north ecliptic pole. ...

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• ASP: What If the Moon Didn't Exist?
• ASP: Contents, Winter 2007
• ASP: From Earth to the Universe

... Classes . ... Earth . ... tcc::Earth Class Reference . ... std::tr1::array < double, 3 >  . ... std::tr1::array <double, 2> tcc::Earth::poleInterceptX . ... std::tr1::array <double, 2> tcc::Earth::poleInterceptY . ... std::tr1::array <double, 2> tcc::Earth::poleSlopeX . ... std::tr1::array <double, 2> tcc::Earth::poleSlopeY . ... std::tr1::array <double, 3> tcc::Earth::startTAI . ... std::tr1::array <double, 2> tcc::Earth::ut1_taiIntercept . ... std::tr1::array <double, 2> tcc::Earth::ut1_taiSlope ....

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

... 4 November 1994 . orbit . ... 0.0128 . ... orbit period . ... satellite mass . 1950 kg . scientific payload mass . 550 kg . ... For more information send a mail to: info@sputnik.infospace.ru . 1997-2002 SMIS IKI RAN and SRC "PLANETA" Moscow, Russia. ...

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• PLANETA home page