Photometric and spectroscopic images for TIC 245820477. The top two panels have similar contents to the top two panels (left and middle) of Fig. 15. The middle and bottom panels are the light curve of TIC 245820477 SECTOR 44 and the magnification of the blue area. From the magnified section of the light curve, several minor flares can be seen, which may be the cause of the slight blue shift in the Hα lines.