Comparison between the class in the sample set and the J-PLUS “CLASS_STAR” parameter. The panel on the left-hand side shows the normalized distributions of CLASS_STAR. The panel on the right-hand side shows the relation between the average magnitudes in the g band corresponding to each bin (the left panel) of CLASS_STAR. The white box and black line denote denotes the stellar objects, blue stands for the galaxies, and yellow is for the QSOs.