It has also been associated with extreme ultraviolet and radio sources , believed to be from coronal activity in the secondary star .
Delta Capricorni was recognised as a metallic - line star in 1957 and included in a 1958 catalog of magnetic stars .
Delta Capricorni has also been associated with extreme ultraviolet and radio sources , believed to be from coronal activity in the secondary star .
Delta Capricorni was recognised as a metallic - line star in 1957 and included in a 1958 catalog of magnetic stars .