Abstract
A solar white-light flare (WLF) was observed at the Beijing Astronomical Observatory in the AR6659 on June 6, 1991. The white light emission was accompanied by intense H α X-ray and microwave emissions. We studied this event and estimated the total power emitted by the WLF knots in the wavelength band of the observation (between 3590Å — 3610Å) to be P = 4.96 × 10 25 erg. s −1. The energy of the WLF on 3600 Åis estimated to be E(3600 A ̊ )= 7.54 × 10 28 erg . The estimated energy of WLF in the whole optical wavelength range (3590 Å-6391 Å) is E = 1.21 × 10 31erg.
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