hello I was recently imaging the sky looking for exoplanets and one of the stars showed this dip in brightness, I used AstroImageJ to prosses the data I took. I used a 200mm diameter SCT and a CCD camera. I have attached the images of my light curves. the flat lightcurve is the same star the following night showing no signs of transits(I hope this means that the transit of the previous night wasn't a malfunction). I also put an image of lightcurves of HAT-p-30b taken with similar sized equipment(not by me) and they are very similar to what I have detected. I have checked NASA's exoplanet archive and have not found this planet. AstroImageJ said that from the transit depth it has calculated the planet's size to be from 3.22 to 5.22 Jupiter radii (it varies because the type of the host star is not know, I assumed that it is a G type or F type because hot Jupiters are most common around them). the transit duration is 28 minutes.
could this be a false detection caused by some sort issue with the processing?