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Using the video catalogues of the Perseids, Ursids, and Lyrids meteor showers having genetic connections with comets, the Geminids, Alpha Capricorni, and Taurids having genetic connections with asteroids, and the Kappa Cygnids and Delta Cancrids of unknown origin, the objects with magnitude higher than +3 were studied. The analysis of coordinates of the meteor showers’ radiant distribution in relation to their magnitudes showed that the Lyrids has the smallest ellipse of the spread of the radiant positions, with 4° by 8°; for the k-Cygnids the deviation is the greatest, with 28° by 28°; for the other showers, it is between 7° and 10°. The main attention is paid to the determination of structural parameters of the Lyrids meteor shower.

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