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Table 2

Measured magnification M and the kinematical ages of the sample PNe.

PN Filter Δt Feature M − 1 Estim. Comment Kin. age
[yr] error [yr]
BD +30°3639 F502N 13.99 Cavity rim 0.0120 25% Thick outer edge 1165 ± 290
F658N 13.99 Cavity rim 0.0120 25% Thick outer edge 1165 ± 290
IC 418 F502N 7.99 Cavity rim 0.0035 20% M(rim) <M(shell) 2280 ± 460
7.99 Shell edge 0.0070 10% [O iii] interior to [N ii] 1140 ± 110
F658N 7.99 Shell edge 0.0065 8% [O iii] interior to [N ii] 1230 ± 100
IC 2448 F502N 8.25 Cavity rim 0.0055 9% 1500 ± 135
8.25 Shell edge 0.0055 36% Faint edge 1500 ± 540
F658N 8.25 Cavity rim 0.0050 9% 1650 ± 150
8.25 Shell edge 0.0050 36% Faint edge 1650 ± 590
IC 4593 F656N 7.78 Shell edge 0.0025 40% Complex shell edge 3110 ± 1240
7.78 Cavity rim 0.0025 >50% Complex rim structure
F658N 7.78 Cavity rim 0.0010 >50% Complex rim structure
NGC 2392 F502N 7.70 Cavity rim 0.0050 10% 1540 ± 150
7.70 Shell edge 0.0050 20% 1540 ± 300
F658N 7.70 Cavity rim 0.0060 8% 1280 ± 100
7.70 Shell edge 0.0060 25% Diffuse edge 1280 ± 320
7.70 Knot network 0.0025 20% M(knot pattern) <M(shell) 3080 ± 620
NGC 3132 F502N 12.61 Cavity rim 0.0050 15% [O iii] interior to [N ii] 2520 ± 380
F658N 12.61 Cavity rim 0.0035 15% [O iii] interior to [N ii] 3600 ± 540
NGC 3242 F502N 11.71 Cavity rim 0.0063 6% 1860 ± 110
4.96 Shell edge 0.0063 30% Shell at edge of camera 790 ± 240
F658N 11.71 Cavity rim 0.0065 15% 1800 ± 270
4.96 Shell edge 0.0065 40% Shell at edge of camera 760 ± 300
11.71 FLIERs 0.0040 25% M(FLIERs) <M(shell) 2930 ± 730
NGC 3918 F502N 7.60 Cavity rim 0.0070 15% Rim > shell on major axis 1090 ± 160
7.60 Shell edge 0.0050 20% Irregular edge 1520 ± 300
F658N 7.60 Cavity rim 0.0040 100% Knots confuse rim shape
7.60 Shell edge 0.0040 20% Irregular edge 1900 ± 380
NGC 5882 F502N 7.78 Cavity rim 0.0070 15% 1100 ± 170
7.78 Shell edge Complex & faint shell edge
F658N 7.78 Cavity rim 0.0070 50% Faint rim in [N ii] 1110 ± 560
7.78 Knot network 0.0045 10% M(knot pattern) <M(shell) 1730 ± 170
NGC 6210 F502N 10.45 Cavity rim 0.0085 6% Two possible rims 1230 ±   70
10.45 Shell edge Faint edge with no sharp features
F658N 11.55 Cavity rim 0.0090 11% Two possible rims 1280 ± 140
11.55 Knot network 0.0055 9% M(knots) <M(shell) 2050 ± 180
NGC 6543 F502N 13.44 Cavity rim 0.0100 5% 1340 ±   70
13.44 Shell edge 0.0085 7% Equatorial pinches 1580 ± 110
F658N 13.44 Cavity rim 0.0100 5% 1340 ±   70
13.44 Shell edge 0.0085 7% Equatorial pinches 1580 ± 110
13.44 E105 0.0130 4% Knotty ellipse 1030 ±   40
NGC 6565 F502N 9.90 Cavity rim 0.0045 11% [O iii] interior to [N ii] 2200 ± 240
F658N 9.90 Cavity rim 0.0085 30% [O iii] interior to [N ii] 1160 ± 350
NGC 6578 F502N 8.35 Cavity rim 0.0065 23% 1280 ± 300
8.35 Shell edge 0.0020 100%
F658N 8.35 Cavity rim 0.0060 17% 1390 ± 240
8.35 Knot network 0.0050 40% Knots dominate ratio 1670 ± 670
NGC 6826 F502N 11.85 Cavity rim 0.0055 9% 2150 ± 190
11.85 Shell edge 0.0055 9% 2150 ± 190
F658N 11.85 Cavity rim 0.0055 9% 2150 ± 190
11.85 Shell edge 0.0055 36% 2150 ± 770
11.85 FLIERs 0.0035 30% M(FLIERs) <M(shell), 3390 ± 1020
messy residuals within FLIERs
NGC 6886 F502N 9.73 Cavity rim 0.0065 15% [O iii] interior to [N ii] 1500 ± 220
F658N 9.73 Cavity rim 0.0070 15% [O iii] interior to [N ii] 1390 ± 210
NGC 6891 F502N 8.48 Cavity rim 0.0070 25% 1999 image not sharp 1210 ± 300
8.48 Shell edge 0.0070 50% Shell very weak 1210 ± 600
NGC 7009 F502N 11.94 Cavity rim 0.0070 30% WF, not PC, image 1710 ± 510
11.94 Shell WF, not PC, image
F658N 11.94 Cavity rim 0.0085 20% WF, not PC, image 1400 ± 280
11.94 Shell WF, not PC, image
11.94 Ansae 0.0045 20% Ansae span 2 WF cameras 2650 ± 530
NGC 7027 F555W 12.98 Cavity rim 0.008–0.012 [O iii] interior to [N ii] 1620 − 1080
NGC 7662 F502N 12.59 Cavity rim 0.0070 7% Thick rim with sharp outer edge 1800 ± 130
12.59 Shell edge 0.0050 20% 2500 ± 500
F658N 12.59 Cavity rim 0.0065 8% Thick rim with sharp outer edge 1940 ± 150
12.59 Shell edge 0.0055 17% Knotty edge 2290 ± 390

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