**Table 1:** ISO spectrum of NGC 6886.
Ident.	$\lambda$ ( $\mu$ m)	Intensity	Comparison
H I 5-4	4.052	0.173
	4.486	2.80
	4.529	1.87
	5.609	4.50
	7.652	0.96
	8.992	1.40
	10.510	23.4	25.
	12.812	1.89
	14.320	24.3
	15.554	38.8	50.
	18.714	39.3	40.
	24.315	21.2
	25.888	62.3
	36.010	3.37
	51.817	17.5	14.6
	57.328	6.4:	2.7:
	88.401	3.30	2.97

Column 3 gives our measured values. The last column gives the IRAS measurements (Pottasch et al. 1986) below 20 $\mu$ m, the [S IV] measurement of Roche & Aitken (1986) and the values of Liu et al. (2001) above 50 $\mu$ m. All intensities are in units of 10^-12 erg cm^-2 s^-1. The ":'' on the [N III] line intensity indicates that the line is weak and difficult to measure.

Source LaTeX | All tables | In the text

	1 Introduction
	2 The spectrum of NGC 6886
	3 Radius and luminosity of the central star
	4 Chemical composition of NGC 6886 from the simplified analysis
	5 Model
	6 Discussion
	7 Nebular abundances
	8 Evolutionary state
	9 Conclusion
	References