The CubeStar Gen 1 from CubeSpace Satellite Systems is a Star Tracker with an accuracy of 0.02° and a data update rate of 1 Hz. It requires a supply voltage of 3 V and a low power consumption of 0.142 W. The star tracker supports the UART interface with a qualified vibration value of 14g RMS and a radiation tolerance value of 24 kRad. It has a mass of 55 g and measures 50 x 35 x 55 mm. The CubeStar Gen 1 is ideal for Earth observation and communication applications.