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Table 1.
Number of PNe in each studied region in our M 31 survey.
| Region | NPN |  |
|---|---|---|
| Disc (10 < RGC ≤ 20 kpc) | 705 | 624 |
| Disc (20 < RGC ≤ 30 kpc) | 507 | 321 |
| Giant Stream | 151 | 113 |
| NE Shelf | 250 | 106 |
| G1 Clump | 65 | 48 |
| N Clump | 14 | 8 |
| W Shelf | 32 | 31 |
| Stream D | 78 | 36 |
Notes. NPN – Total number of PNe identified in each M 31 region; 
– Number of PNe identified within the magnitude range m5007 ≤ 26.16 mag in each M 31 region.
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