Novosti
za 19 sentyabrya 2015.
Kalendar' nablyudatelya na sentyabr' 2015 goda Ocherednoi vypusk ezhemesyachnika Kalendar' nablyudatelya rasskazhet ob osnovnyh yavleniyah mesyaca, dostupnyh dlya nablyudenii nevooruzhennym glazom i lyubitel'skimi opticheskimi sredstvami.... |
|