I use methods of systems analysis to build a model of the traditional world-view among present-day Belarusians. Ethnographic observations and interviews served mostly as sources for my research on Belarusian traditional astronomical knowledge. I corroborate the assertion that today’s informants’ knowledge is traditional by a comparison with records from earlier periods.

Traditional astronomical conceptions are common among present-day Belarusians. They influence not only people’s orientation in space and management of nature, but also social relations, including the way in which calendrical, family, medical and other rituals are conducted. Traditional astronomical conceptions form part of a hierarchically arranged traditional worldview. Since these archaic myths and rituals are on the brink of extinction, it is urgent that we record them as soon as possible and take special steps to protect them.