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    81. Far-out Pathways to Space: Solar Sails
    ... the Sun--not only when the comet approaches the Sun and its tail trails behind it, but also after it has passed the Sun and ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Solsail.htm -- 9.2 Кб -- 03.03.2006
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    82. Solar system [Oulu]
    ... stellar-planetary unit consisting of the Sun ; the nine planets and their satellites ... of the mean distance from the Earth to the Sun, called the astronomical unit (AU ... The most distant known planet, Pluto, has an orbit at 39.44 AU from the Sun. ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/SPPHTEXT/solarsys.html -- 2.9 Кб -- 21.12.2007
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    83. The Solar Wind--History
    ... The polar regions of the Sun also have such outwards-directed field lines, as evidenced by the "polar plumes" seen in the corona during a total eclipse of the Sun. ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/Education/whsolwi.html -- 9.4 Кб -- 21.12.2007
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    84. Solar Energetic Particles
    ... Sun's surface two bright pin-point sources of x-rays, appearing at the beginning of an acceleration event, it was widely assumed that they marked the impact of beams of electrons accelerated at the top of an "arch" and guided by its field lines down to ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/Education/wsolpart.html -- 12.1 Кб -- 21.12.2007
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    85. (S-7a) The Black Hole at the Center of our Galaxy
    ... Site Map . Our Sun is part of a huge wheel-shaped collection of stars. ... mass, estimated at 3.7 million times the mass of our Sun (give or take 1.5 million ... tremendous, but like the gravity pull of Sun, Earth or any other object, it obeys ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Iblkhole.htm -- 9.5 Кб -- 21.12.2007
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    86. May Earth be Revolving around the Sun?--lesson plan #16
    ... Sun--to an observation by the Greek astronomer Aristarchus, which convinced him that ... the Sun, he showed, was much larger than the Earth, making it likely that the Sun ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Larist.htm -- 14.2 Кб -- 12.04.2005
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    87. The Motion of Comets
    ... the Sun and a planet, or the Sun and a comet -- the smaller body appears to follow an elliptical path or orbit about the Sun ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/solar/eng/comet/motion.htm -- 8.0 Кб -- 15.10.1997
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    88. Earth [Oulu]
    ... In our Solar System , planet Earth is the third in distance from the Sun and the fifth largest in diameter. ... The mean distance of the Earth from the Sun is 149,503,000 km, and radius varies from 6378 km in the equator to 6356 km in ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/SPPHTEXT/earth.html -- 3.5 Кб -- 13.05.2001
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    89. Transits of Venus
    ... dark Venus disk touches the edge of the Sun's disk (marked by numbers on Figure 3 ... First contact - Venus disk touches the Sun from the outside , on entry . ... Second contact - Venus disk touches the Sun from the inside , on entry . ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/mirrors/stern/stargaze/Svenus2.htm -- 13.1 Кб -- 05.06.2006
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    90. The Solar Wind--History
    ... The polar regions of the Sun also have such outwards-directed field lines, as evidenced by the "polar plumes" seen in the corona during a total eclipse of the Sun. ...
    [ Сохраненная копия ]  Ссылки http://www.iki.rssi.ru/magbase/REFMAN/EAMAGSPH/whsolwi.html -- 5.7 Кб -- 21.12.2007
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