Table 6: Diffused light model parameters. We considered an exponential model $\Delta m_\lambda = a\ {\rm e}^{b \theta } + c$, where $\Delta m_\lambda $ is the surface magnitude per arcsec2 of the sky background at an angular distance $\theta $ of a zero magnitude source, and (a,b,c) are the adjusted model parameters.
$\lambda$ J ( $\theta \ge 3''$) H ( $\theta \ge 3''$) $K_{\rm s}$ ( $\theta \ge 3''$) $K_{\rm s}$ ( $\theta \le 3''$)
a -7.281 -7.969 -8.035 -9.068
b -0.163 -0.194 -0.228 -0.638
c 13.226 13.247 13.018 10.305


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