For example, in the UBV photometric system we can write it for the B-V color::formula_2The passbands most optical astronomers use are the UBVRI filters, where the U, B, and V filters are as mentioned above, the R filter passes red light, and the I filter passes infrared light.
Samica zelene žabe je dolga med 5 in 9 cm, samec med 6 in 11 cm.