The transit method is a photometric method that aims to indirectly detect the presence of one or more exoplanets in orbit around a star. One example of the use of this method, is to detect M51-ULS-1b. This method is related to the brightness of the stars, this is because when this brightness decreases, it is significant because there is an exoplanet between the earth and this star. And through this formula, we can detect the radius of this exoplanet and more information. Advantages; transit photometry is currently the most effective and sensitive method for detecting extrasolar planets. It is a particularly advantageous method for space-based observatories that can stare continuously at stars for weeks or months.
