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    41. Planetary Systems Research at Armagh
    ... The solar system probably formed about 4.5 billion years ago from a giant disk of gas, dust and ice in space. ... Planet formation began with the grains of dust and ice colliding and sticking together to form larger objects. ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~aac/res-planets.html -- 5.9 Кб -- 19.12.2002
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    42. Planetary Systems Research at Armagh
    ... The solar system probably formed about 4.5 billion years ago from a giant disk of gas, dust and ice in space. ... Planet formation began with the grains of dust and ice colliding and sticking together to form larger objects. ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~jec/res-planets.html -- 5.9 Кб -- 01.10.2012
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    43. Armagh Observatory
    ... In this context "dust trail theory" refers to the fact that the set of meteoroids released from a parent comet during a single perihelion return stretch out into a dense, narrow dust trail during their early orbital evolution. ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~dja/209P/ -- 20.0 Кб -- 28.05.2014
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    44. Predicting a Fine Display of Leonid Meteors
    ... Sun in the opposite direction to the Earth, so when the Earth crosses the trail of debris, which is composed of a number of dense, discrete streams of dust particles, the dust grains enter the atmosphere at very high speeds, about 160,000 miles per hour ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/press/Leonids-99.html -- 3.6 Кб -- 09.11.1999
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    45. Leonid Meteors by Moonlight
    ... the Sun in the opposite direction to the Earth, so when the Earth crosses the trail of debris, which is composed of a number of dense, discrete streams of dust particles, the dust grains enter the atmosphere at very high speeds, about 45 miles per second ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/press/Leonids-2000.html -- 4.0 Кб -- 14.11.2000
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    46. Armagh Observatory
    ... The tiny dust particles are carried away from the ice-and-dust cometary nucleus during the cometтАЩs passage through the inner ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/press/2013/meteor-outburst.html -- 9.3 Кб -- 18.09.2013
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    47. Research
    ... dust), (ii) the Sun (the dynamic solar atmosphere, chromosphere and corona), (iii) Solar System Astronomy (including celestial mechanics, planetary science, and the dynamical evolution and interrelationships of comets, asteroids and interplanetary dust ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/annrep/annrep2003/node15.html -- 10.0 Кб -- 19.05.2004
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    48. R CORONAE BOREALIS STARS
    ... fading is caused by the formation of sooty dust clouds above the surface of the star ... all RCB stars pulsate, which may help to explain the dust formation episodes ... regarding their evolutionary origin and the physical mechanism of dust formation ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/~csj/research/rcb_review/ -- 5.8 Кб -- 25.01.2002
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    49. Leonid Meteors
    ... predictions involve the accurate modelling of dust trails within the Leonid stream ... are some 2009 Leonid results we calculated with dust trail theory, i.e. following ... 2002 . "Leonid dust trail structure and predictions for 2002" . ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/leonid/ -- 15.7 Кб -- 13.12.2010
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    50. Meteors from comet 209P/LINEAR
    ... In this context "dust trail theory" refers to the fact that the set of meteoroids released from a parent comet during a single perihelion return stretch out into a dense, narrow dust trail during their early orbital evolution. ...
    [ Сохраненная копия ]  Ссылки http://star.arm.ac.uk/press/2014/temp -- 15.8 Кб -- 22.05.2014
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