Solunar theory holds that feeding times for fish and wildlife correlate well with the relative positions of the sun and moon to the animal. Using solar, lunar and tidal information, you can determine major and minor periods, which appear on solar charts by location. Fisherman and hunters use these tables to determine the best times to catch fish and hunt. A number of website services generate the table information specific to an area based upon a user's location.
The basic information in solunar tables — solar, lunar and tidal — is the same as that found in any other type of table, regardless of its utility. Solunar theory leverages this information to generate major and minor periods of time throughout the day and throughout year when these forces are most conducive to fish feeding or wildlife moving and feeding.
John Alden Knight first proposed solunar theory in 1936, taking information long known by fisherman about the activities of fish, and listing the factors that might be involved. Starting with 33 factors, Knight systematically investigated and narrowed to three the number of factors most predictive for deciding best times to catch fish. Although originally limited to fisherman, Knight found that solar and lunar forces were also helpful in determining the best times to hunt.