Open Access
Table 5.
Distribution and quality of spectral type classification: field (i).
| Spectral type | Teff (K) | Σ | PC2 | PC1 | PC0 |
|---|---|---|---|---|---|
| O | >30 000 | 38 | 9 | 2 | 27 |
| B | 10 282 … 30 000 | 32 | 9 | 15 | 8 |
| A | 7715 … 9703 | 39 | 24 | 14 | 1 |
| F | 5688 … 7715 | 30 | 14 | 11 | 5 |
| G | 4709 … 5680 | 12 | 6 | 4 | 2 |
| K | 3895 … 4696 | 164 | 65 | 64 | 35 |
| M | <3810 | 179 | 115 | 50 | 14 |
| C | <3000 | 23 | 23 | 0 | 0 |
| 517 | 265 | 160 | 92 | ||
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