Table 1
Distances inferred for the NGC sample.
| PNG | Name | A v | distance [pc] | |||||||
| Stras. | Cahn | Stas. | this paper | Others | dC | dVst | dMa | this paper | ||
|
|
||||||||||
| 033.8-02.6 | NGC 6741 | 1.96 | 1.96 | 1.93 | 1.73 | 2047 | 2260 | 1700 | 2680 ± 110 | |
| 041.8-02.9 | NGC 6781 | 2.09 | 1.96 | 2.16 ± 0.11 | 1.78 | 699 | 840 | 900 | <1000 | |
| 045.7-04.5 | NGC 6804 | 1.85 | 1.85 ± 0.11 | 1.58 | 1709 | 1660 | 1600 | <800 | ||
| 046.4-04.1 | NGC 6803 | 0.96 | 1.62 | 1.60 | 1.14 | 2987 | 3190 | 2500 | 950 ± 130 | |
| 060.8-03.6 | NGC 6853 | 0.36 | 0.55 | 262 | 400 | 400 | <800 | |||
| 065.9+00.5 | NGC 6842 | 0.96 | 2.04 | 2.08 ± 0.15 | 1366 | 1700 | 2700 ± 950† | |||
| 069.4-02.6 | NGC 6894 | 1.80 | 1.85 ± 0.11 | 1.44 | 1653 | 2000 | 1500 | 1000 ± 100 | ||
| 074.5+02.1 | NGC 6881 | 3.27 | 3.62 | 4.12 | 2473 | 3950 | 1700 | n.d. | ||
| 084.9-03.4 | NGC 7027 | 2.53 | 2.97 ± 0.46 | 273 | 630 | 700 | n.d. | |||
| 088.7-01.6 | NGC 7048 | 0.65 | 1.53 | 1.20 ± 0.13 | 1.27 | 1598 | 2220 | 1200 | 1000–2000† | |
| 089.0+00.3 | NGC 7026 | 1.40 | 1.34 | 2.10 ± 0.11 | 1.69 | 1902 | 1940 | 900 | <1500 | |
| 107.8+02.3 | NGC 7354 | 2.94 | 3.62 | 3.99 ± 0.08 | 3.23 | 1271 | 1230 | 800 | 1000 ± 150 | |
Notes. Columns labelled as “Stras”, “Cahn”, and “Stas” correspond to the Strasbourg catalog, Cahn et al. (1992), and Stasińska et al. (1992), as well as “dC” and “dVst” are taken from Cahn et al. (1992) and van de Steene & Zijlstra (1994), respectively, while “dMa” from Maciel (1984). “Other” references are given in the text. When significantly different extinction estimates are available, the values reported for the distances are obtained using the absorption values in bold face. Errors are statistical originating in the linear fit to the distance extinction curve, except for NGC 6842 and NGC 7048, where we have also included the errors in the extinction measurement.
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