Abstract: The authors attempt to reveal the internal interconnection of a traditional mythologem of space with the ideas of a modern astronomical reality in the music by E. Artemiev written for A. Tarkovsky’s movie “Solaris”. The mythologem of space gained its features back within the ancient worldview and formed a sort of a semiotic complex which can be considered as a combination of various symbols connected with basic natural forces, basic forms and numbers. This mythologem was embodied in various art forms, including the music of various historical epochs. Surprisingly, in contemporary culture, which has much wider knowledge of physical (astronomical) space, the ancient ideas of microcosm and macrocosm are still functioning, along with the medieval religious ideas of eternity, metaphysical searches for new spirituality, the divine-humanity of cosmism adherents, etc. Based on M.M. Bakhtin’s concept of chronotope, the authors develop the model of chronotope analysis represented in the form of a table (G. N. Dombruaskene) which allows considering the movie within a vector space, in which the main vectors - the two basic directions - are the chronometry and the chronotope. The table format demonstrates the semantic moments related to space which emerge at the crossing of the three key parameters of the movie: verbal, visual and musical. The full chronotropic, semiotic and computer-based analysis with the sonograms of music examples (D.N. Bolotin) helps to reveal in each space-related fragment of the movie the music and artistic means of expression of its philosophical and astronomical characteristics.