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পৃথিবী থেকে মোটামুটি হাজার আলোকবর্ষ দূরের কোনো তারার গ্রহ প্রাণধারনের উপযোগি কিনা তা পৃথিবীতে বসে কীভাবে বুঝবো?

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asked Jul 18, 2013 in Astronomy by Abdullah Al Mahmud (2,187 points)
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1 Answer

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answered Jul 19, 2013 by Saiful Islam Tushar (377 points)
selected Sep 12, 2013 by Abdullah Al Mahmud
 
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if we take  spectrum  of radiation of our desired planet  .................... we  can get a minimum idea of this planet..............to  analysing the spectrum............... we  can get information about its sorroundings &  and  its  atmosphere..................

as for example , we can easily tell that a vigorous  nuclear fusion reaction is occured in the sun ,  by    learning its radiation  ............  ..............   is not it true for other cosmic body.......................

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