- photovisual magnitude of a star
- фотовизуальная звездная величина
English-russian astronautics dictionary. - M.: Military Publishing house. Compiled by F. P. Suprun, K. V. Shirokov. 1964.
photovisual magnitude of a star
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photovisual — adjective relating to the magnitude of a star as measured by the size of its image on an isochromatic photographic emulsion … Wiktionary
