Novosti
za 14 oktyabrya 2016.
Kalendar' nablyudatelya na noyabr' 2016 goda Ocherednoi vypusk ezhemesyachnika Kalendar' nablyudatelya rasskazhet ob osnovnyh yavleniyah mesyaca, dostupnyh dlya nablyudenii nevooruzhennym glazom i lyubitel'skimi opticheskimi sredstvami.... |
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