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Table 1
Summary of the spectral types of CSPN compiled in our catalogue, grouped by their atmospheric hydrogen abundance.
| H-rich | H-poor | ||||
| Sp.Type | Sample | Sp. Type | Sample | Sp. type | Sample |
|
|
|||||
| O3-9+Bearly | 64 | sdB | 1 | [WC4-11] | 57 |
| Of | 20 | Hybrid | 3 | [WO1-4] | 33 |
| Later that B5 | 38 | Symbiotic star? | 7 | [WR] | 11 |
| B[e] | 6 | Blue | 50 | [WN] | 5 |
| DA+WD | 12 | Emission-line | 25 | PG 1159 | 15 |
| DAO | 14 | [WC]-PG1159 | 2 | ||
| sdO | 3 | O(He) | 3 | ||
| hgO(H) | 16 | O(c)+Of(c) | 2 | ||
| Cont. | 16 | H-poor | 1 | ||
| H-rich | 3 | DO | 4 | ||
| wels | 72 | ||||
| Total | 192 | Total | 86 | Total | 205 |
Notes. Here, we have discarded 9 objects without any specific spectral type.
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