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broadband photometry




Photometry carried out using filters with a bandwidth of 30 to 100 nanometers. Various systems have been developed including Johnson photometry, Krons-Cousins RI photometry, and RGU photometry. It is used instead of narrowband photometry or intermediate-band photometry in studies, such as star counts, in which it is important to observe fainter stars.


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   • OBSERVATIONAL ASTRONOMY