Publikacii
za 16 dekabrya 2017.
Razdel: Lyubitel'skaya astronomiya
Kalendar' nablyudatelya na yanvar' 2018 goda Ocherednoi vypusk ezhemesyachnika, osveshayushego astronomicheskie yavleniya i nebesnye tela, dostupnye dlya nablyudenii nevooruzhennym glazom i lyubitel'skimi opticheskimi sredstvami.... |
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