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Table 2
Properties of the main overdensity in Fig. 3
| Properties | Value | |
| Significance | >7σ | |
| Size | Ellipse 1.7° × 2.2° | 2.94 °2 |
| Number of stars | 2345 | |
| Total mass | ~1200 M⊙ | |
| Surface density | 800 stars/ °2 | |
| for d = 380 pc | 18 stars/pc2 | |
| for d = 250 pc | 41 stars/pc2 | |
| Volume density | for d = 380 pc | 8 stars/pc3 |
| for d = 250 pc | 17 stars/pc3 | |
| Position of peaks | σ-Ori | 14σ |
| A | 205.5°, –17.5° | 11σ |
| B | 204.5°, –16.8° | 10σ |
| C | 204.5°, –17.5° | 9σ |
| D | 205.2°, –18.2° | 8.5σ |
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