The photometric observations of SX Phe type star XX Cyg (V=12m. A5) were made in five nights using 48 cm reflector at the Astronomical Observatory of Odessa National University. The CCD photometer and the V filter of the UBV system was used. The variable and comparison stars monitored in the frame simultaneously. https://www.roamingfreesims.com/product-category/uv-lamps/