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Table 3

List of [14.95]–[21.5] colour values for the PNe with the 16–18 μm feature.

Name [14.95]–[21.5]
(mag)
PN K 3-60 1.618 ± 0.005
SMP LMC 79
SMP LMC 78
SMP LMC 75 1.407 ± 0.009
SMP LMC 71 1.722 ± 0.018
SMP LMC 61 1.145 ± 0.009
SMP LMC 38 1.453 ± 0.015
SMP LMC 36 1.349 ± 0.008
SMP SMC 17 1.611 ± 0.009

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