Identification of the C2 Phillips system in the solar spectrum

A probable identification of the (1,0) band of the C2 Phillips (1948) system in the solar photospheric spectrum is reported. The band oscillator strength derived from an analysis of the equivalent widths is compared with available laboratory and theoretical estimates. An independent search for the (2,0), (3,0), (4,1), and (5,2) bands recently reported by Sinha (1973) is also discussed.