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Observer: |
No. | Sunspot number | longitude | latitude | type | a | a' | radius | Sunspot number |
1 | 144 | 6 | -28.5 | DHI | 24.7 | 17.4 | 39 | 23 |
2 | 138 | -13 | 67 | FHC | 14.2 | 3.7 | 80 | 32 |
3 | 143 | -9 | 17 | BXO | 0.2 | 0.1 | 33 | 30 |