We demonstrate the newly developed resource for exoplanet researchers - TheExoplanet Transit Database. This database is designed to be a web applicationand it is open for any exoplanet observer. It came on-line in September 2008.The ETD consists of three individual sections. One serves for predictions ofthe transits, the second one for processing and uploading new data from theobservers. We use a simple analytical model of the transit to calculate thecentral time of transit, its duration and the depth of the transit. Thesevalues are then plotted into the observed - computed diagrams (O-C), thatrepresent the last part of the application.
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