Table 7: Optical line fluxes for NGC 6543. In Col. 8 the average fluxes from MP, M, AC and H-east are given (see Sect. 4.2 for details). All the fluxes from Cols. 3 to 8 have been corrected for extinction using $C_{{\rm H_{\beta }}}=0.2$ (as are given in the literature) and are relative to H $_{{\rm\beta }}$. In this paper a lower extinction is found. The last column lists the average fluxes corrected for extinction using $C_{{\rm H_{\beta }}}=0.1$ ( EB-V=0.07) and in units of 10-12 erg cm-2 s-1.
$\lambda$ Ident. Flux$^\dagger$   $\overline{Flux}$
(nm)   MP Midd AC H-East H-North Average    
372.6 [O II] 15.5b 23.9b 21.0b 8.292 23.53 8.292   24.35
372.9 [O II]       3.471 10.15 3.471   10.20
386.9 [Ne III] 60.42   51.0 48.35 38.67 53.26   157.4
396.8 [Ne III] 35.65   32.0 18.62 16.56 28.76   85.4
406.9 [S II]       0.540 2.108 0.54   1.61
407.6 [S II]       0.358 0.848 0.385   1.15
436.3 [O III] 1.49 1.80 2.2 2.051 1.581 1.89   5.71
447.2 He I 6.20 5.30 6.02 6.018 5.158 5.88   17.9
468.6 He II       0.050   0.05   0.15
471.1 [Ar IV]     1.3 0.935 0.284 1.12   3.45
474.0 [Ar IV]       0.910 0.360 0.91   2.81
486.1 H I (H $_{{\rm\beta }}$) 100 100 100 100 100 100   310.9
495.9 [O III] 264.1 227.3   218.8 172.2 236.7   740.4
500.7 [O III] 774.7 663.0 675.0 704.3 518.5 704.2   2209
519.2 [Ar III]       0.055 0.051 0.055   0.17
551.8 [Cl III]       0.380 0.478 0.380   1.22
553.8 [Cl III]       0.535 0.603 0.535   1.72
575.4 [N II]       0.242 0.905 0.242   0.81
587.6 He I 23.80 15.6 15.1 20.15 14.10 18.66   60.9
610.2 [K IV]       0.042 0.016 0.042   0.14
631.2 [S II]     0.74 0.912 1.309 0.826   2.74
654.8 [N II] 10.40 5.7   4.884 21.97 6.99   23.3
658.3 [N II] 17.30 16.8 16.2 17.27 59.29 16.89   56.4
671.6 [S II]     0.85 0.652 3.021 0.751   2.52
673.1 [S II]     1.40 1.502 5.722 1.451   4.86
713.6 [Ar III] 22.2   14.0 21.18 17.45 19.13   64.8
717.1 [Ar IV]       0.026 0.025 0.026   0.09
753.0 [Cl IV]       0.144 0.057 0.144   0.49
775.1 [Ar III]     3.0 4.674 4.589 3.837   16.10
804.6 [Cl IV]       0.300 0.110 0.300   1.05
857.9 [Cl II]       0.048 0.127 0.048   0.17
953.1 [S III]       19.10 46.46 19.10   68.4
$^\dagger$ References: MP: Manchado & Pottasch (1989), M: from Middlemass et al. (1989), AC: Aller & Czyzak (1979), H-east and H-north: Hyung et al. (2000).
b Blended with the line at 372.9 nm.

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