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Table 5

Coefficients of analytical fits of the photonic passbands of the Strömgren photometric system filters uvby Eqs. (11)and (12).

a 1 a 2 a 3 a 4 a 5 a 6 d c σ c

u 21.3 –14.3 3590 8.85 448 –1430 3475 103
v 94.4 –652 2000 55.2 305 0 4100 103
b 76.7 –268 0 111 –896 2790 4675 103
y 24.8 465 0 47.1 578 0 5475 103

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