Optical variability of QSOs

The SA94 variability sample is made up of 149 optically selected quasars listed in this table, observed in a rectangular area of the sky within the limits 2h 43m 51.2s < RA...SA94变源样本（SA94 variability sample）由本表格所列的149颗光学选类星体构成，其观测区域为赤经（Right Ascension，RA）范围满足2h 43m 51.2s < RA……的天空矩形区域。