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2841. http://www.armaghplanet.com/pdf/BT_PDF/Stars_Poster.pdf
EDE71610 stars poster:stars poster 1 AW 5/1/09 17:02 Page 1 a guide to THE STARS A STAR CAN HAVE T WO TYPES OF LIFE CYCLE.. SOLAR STAR (EG-THE SUN) WHAT IS A STAR? ... Stars are categorised based on their temperature. ... When the gas blows away, the core of the old star is left as a white dwarf, an enormously dense star (around the size of the Earth but with the mass of the Sun). ... 2009 SPACE ODYSSEY STELLAR NEBULA MASSIVE STAR RED SUPERGIANT NEUTRON STAR SUPERNOVA BLACK HOLE LIGHT YEARS AWAY.. ...
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Ссылки http://www.armaghplanet.com/pdf/BT_PDF/Stars_Poster.pdf -- 2042.0 Кб -- 20.09.2011
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2842. http://www.armaghplanet.com/pdf/BT_PDF/Planets_Poster.pdf
EDE71610 planets poster inside:planets poster changed AW 9/1/09 15:12 Page 1 a guide to the PLANETS MERCURY Discovered: Known since 3,000 years BC. Mercury is the closest planet to the Sun and the smallest in our Solar System. ... As well as the planets that orbit the Sun, many other bodies inhabit the Solar System. ... Slightly smaller than Mars, Mercury is the innermost planet in the solar system, orbiting the Sun every 88 days. ... Mars' orbit is closest to the Earth every 26 months. ...
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Ссылки http://www.armaghplanet.com/pdf/BT_PDF/Planets_Poster.pdf -- 1814.2 Кб -- 20.09.2011
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2843. http://www.armaghplanet.com/pdf/BT_PDF/Moon%20Poster.pdf
moon poster new AW 11/6/09 13:37 Page 1 a guide to the MOON THE MOON'S VITAL STATISTICS Diameter: 2,160 miles. ... MEN ON THE MOON Although Russia had successfully landed an unmanned spacecraft (Luna 9) on the Moon in 1966, the crew of Apollo 8 in December 1968, were the first humans to leave Earth orbit and circle the Moon. ... THE PHASES OF THE MOON LUNAR TIDES Tides are created because the Earth and the Moon are attracted to each other, just like magnets are attracted to each other. ...
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Ссылки http://www.armaghplanet.com/pdf/BT_PDF/Moon%20Poster.pdf -- 2174.2 Кб -- 20.09.2011
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2844. http://www.armaghplanet.com/pdf/AstroTopics/Stars%20and%20Constellations/The%20size%20of%20Space.pdf
... For more distant stars we must use other techniques. ... Hence if we see a distant galaxy and can pick out any cepheids lying within it, we can calculate its distance. ... Here then is another method to gauge the size of the Universe and there are yet more. volume at high enough temperature a nuclear fusion reaction sweeps across the white dwarf's surface and eventually we will see a spectacularly bright new star (hence nova) in our skies. ... Why is this relevant to the size of the Universe? ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Stars%20and%20Constellations/The%20size%20of%20Space.pdf -- 75.1 Кб -- 20.09.2011
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2845. http://www.armaghplanet.com/pdf/AstroTopics/Stars%20and%20Constellations/sirius.pdf
February 2007 Astronotes 1 Bluffer's Guide to Sirius by Colin Johnston, Science Communicator Which is the brightest star in the sky? ... Today Sirius is what proper astronomers call a `main sequence star', meaning it is happily shining away generating energy from hydrogen. ... This odd little star is Sirius B (sometimes Sirius `proper' is called Sirius A) or the Pup (since its bigger partner is the Dog Star) and is classed as a white dwarf. ... This is Procyon, the eighth brightest star in our sky. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Stars%20and%20Constellations/sirius.pdf -- 208.1 Кб -- 20.09.2011
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2846. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/The%20stars%20our%20destination.pdf
December 2007 Astronotes 1 The stars our destination? ... Most space enthusiasts expected bases on the Moon and flights to Mars to be achieved in the next twenty years (sadly, decades later on these goals are still twenty years away). ... The date when travelling to the stars (interstellar travel) becomes feasible has stretched into the future, but it is still a living dream. How could people travel to the stars? ... The answer is 63 000 years to reach the closest star to our Sun. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/The%20stars%20our%20destination.pdf -- 516.5 Кб -- 20.09.2011
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2847. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/sunshine.pdf
... On average, photons of energy may take about 40 000 years to travel from the centre of the Sun to its surface, that is equivalent to about 2cm per hour which is much, much slower than a snail's pace. ... As a by-product, the fusion reactions in the Sun's core also generate a multitude of particles called neutrinos. ... Meanwhile the neutrinos created in the core leave the photons standing as they zip through the Sun's outer layers in just over a couple of seconds and escape into space. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/sunshine.pdf -- 888.7 Кб -- 20.09.2011
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2848. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/Starwars.pdf
March 2007 Astronotes 1 The real Star Wars By Colin Johnston, Science Communicator On 11 January, FY-1C, a derelict Chinese weather satellite, was quietly circling the Earth when a sudden and brutal assault smashed it into at least 900 pieces. Its attacker was a projectile launched by a ballistic missile as China's military tested its latest toy, an anti-satellite weapon or ASAT and converted one large piece of space junk into nearly a thousand little ones. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/Starwars.pdf -- 85.7 Кб -- 20.09.2011
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2849. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/Phoenix.pdf
August 2007 Astronotes 1 Phoenix takes flight By Wendy McCorry, Science Communicator All being well, as you read this, NASA's latest mission to Mars ґ the Phoenix probe- should be heading towards the Red Planet to continue the search for alien life. ... It will then carry out a 90 day mission on the planet, digging beneath the soil and gathering ice samples to uncover the history of water on Mars and to explore the planet's potential for life. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/Phoenix.pdf -- 89.6 Кб -- 20.09.2011
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2850. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/envisat.pdf
... Envisat contributes greatly to scientific research with its ability to monitor environmental and climatic changes on a global scale. ... Envisat has captured many environmental is- "Satellite images can determine whether fires in certain locations need monitoring" Figure 2 shows Portugal and Northern Spain; the white wisps moving across the Atlantic are smoke from fires that devastated this loca- Image Credit: ESA 2 Astronotes November 2007 tion in August 2006. ... Image Credit: ESA Figure 2. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/envisat.pdf -- 262.9 Кб -- 20.09.2011
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2851. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/China%20heads%20for%20the%20moon.pdf
February 2008 Astronotes 1 China Heads for the Moon This month we will be celebrating Chinese New Year, as February 2008 marks the beginning of the Year of the Rat. This will be a significant year for the Chinese space programme, as it sees the continuation of China's ambitious Lunar Exploration Programme (CLEP), which successfully got under way at the end of last year. ... Phase two of the Chinese programme is intended to be the `landing' phase. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/China%20heads%20for%20the%20moon.pdf -- 409.2 Кб -- 20.09.2011
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2852. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/2007%20from%20ENVISAT.pdf
December 2007 Astronotes 1 2007 in pictures from ENVISAT By Wendy McCorry, Science Communicator These images were taken by ENVISAT, the European Space Agency's Earth Observation spacecraft ґ the largest of its kind ever built. ... Clockwise from top left: ENVISAT's Medium Resolution Imaging Spectrometer (MERIS) captured this image of tropical cyclone Gamede sweeping across the Indian Ocean on 23 February 2007. ... ENVISAT captured this image of the wildfires in Southern California on 22 October. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/2007%20from%20ENVISAT.pdf -- 112.7 Кб -- 20.09.2011
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2853. http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/A%20life%20for%20the%20stars.pdf
... Using even the most advanced plausible rocket designs, such as the British Interplanetary Society's Daedalus concept, we seem resigned to one-way journey times of decades or centuries to reach even the nearest stars. ... Bussard Ramjet Starship 1 An artist's impression of the concept. ... Space is not quite a vacuum. ... A ramjet could travel the fifty light years to the sun-like star 51 Bussard Ramjet Starship 2 Another artist's impression by the very talented Adrian Pegasi (home of at Mann. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Spacecraft/A%20life%20for%20the%20stars.pdf -- 411.1 Кб -- 20.09.2011
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2854. http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/life%20in%20hostile%20places.pdf
May 2007 Astronotes 1 Life in Hostile Places by Tom Mason, Director When I was still working as a Geology professor in Africa, I spent a lot of time in Namibia researching ancient river and lake deposits, and finding fossil evidence of life in the Namib Desert when it was a more pleasant place to live, being much wetter than today. ... The critical combination of soil, water and sunlight allows lichens and algae to grow. ... But if there is water, there may be life. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/life%20in%20hostile%20places.pdf -- 294.5 Кб -- 20.09.2011
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2855. http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/love%20on%20the%20moon.pdf
July 2007 Astronotes 1 Can you find Love on the Moon? ... These are, in fact, the names of some of the craters found on the Moon's surface. ... Look at the Moon through a pair of binoculars and you may be able to see the prominent Copernicus Crater in the upper left quadrant. ... This is apparent from this image of the crater Copernicus photographed thirty five years ago during the final Apollo lunar mission. ... Image Credit: NOAO ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/love%20on%20the%20moon.pdf -- 176.4 Кб -- 20.09.2011
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2856. http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/It%20came%20from%20outer%20space.pdf
November 2007 Astronotes 1 It came from Outer Space? ... Coming up to date, reality seemed to be imitating fiction on 15 September 2007, when something fell from the sky near the hitherto little-known village of Carancas, Peru, leaving a huge crater- yet no meteorite was found. Noxious fumes from the impact site caused a range of unpleasant symptoms in about six hundred local people. ... By the end of September, Mike Farmer (owner of www.meteorhunter.com) had traveled to the scene. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/It%20came%20from%20outer%20space.pdf -- 608.9 Кб -- 20.09.2011
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2857. http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/Earth%20and%20Mars.pdf
A tale of two planets: the history of Earth and Mars compared 4.54 billion years ago 4.527 billion years ago 4.5-4 billion years ago Earth Forms in Sun's proto-planetary disc Collision with other planet; Formation of the Moon Mainly carbon dioxide atmosphere , surface water , molten core and magnetic field Mars Forms in Sun's proto-planetary dis c 4 billion years ... Atmosphere becoming rich in oxygen Earliest life in oceans? ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/Earth%20and%20Mars.pdf -- 62.4 Кб -- 20.09.2011
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2858. http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/Hotspots%20of%20Saturn.pdf
February 2008 Astronotes 1 Hot spots of Saturn pole of Saturn. ... But at the start of January 2008 another image was taken not of the planet's south pole, but of the north pole and a similar hot spot was discovered. "...for the past ten years it has been winter at Saturn's north pole " This warming came as a shock because for the past ten years it has been winter at the north Polar View This infra red composite of images from Cassini shows Saturn's mysterious polar hexagon. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/Hotspots%20of%20Saturn.pdf -- 266.6 Кб -- 20.09.2011
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2859. http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/doomsday.pdf
... There are many theories on what will destroy planet Earth, such as nuclear annihilation, global warming or the Sun becoming a red giant. ... It was founded by the board of directors of the magazine `Bulletin of the Atomic Scientists' to draw the public's attention to the nuclear threat, midnight being the time when Doomsday will occur. ... The board has said that climate change has now become the second biggest threat to the existence of the Earth after global nuclear war. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/doomsday.pdf -- 227.7 Кб -- 20.09.2011
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2860. http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/Deeptime.pdf
Deep Time: Earth's history and future By Colin Johnston, Armagh Planetarium Earth 4.54 billion years ago Forms in Sun's protoplanetary disc S un Elsewhere in Solar System Other planets form. ... Hot and airless Sun a subgiant, diameter 1.5 its current value, 2 6.4 billion years from no w ? ... Earth cools 20 million years later? ... Core temperature about 55 million°C, helium flash, followed by the Sun shrinking Sun is 10 times its current diameter, luminosity 20-50% current value. ...
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Ссылки http://www.armaghplanet.com/pdf/AstroTopics/Solar%20System/Deeptime.pdf -- 84.3 Кб -- 20.09.2011
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