Optical variability of NGC 4151
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The UBV observations of performed between 1972 and 1998 are presented. The aperture is 27.5".
本文呈现了1972年至1998年间开展的UBV观测。观测孔径为27.5角秒。

The UBV observations of performed between 1972 and 1998 are presented. The aperture is 27.5".
本文呈现了1972年至1998年间开展的UBV观测。观测孔径为27.5角秒。