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N | S | N+S | |
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k | R |
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Note: |
Observer: |
No. | Sunspot number | longitude | latitude | type | a | a' | radius | Sunspot number |
1 | 306 | 0.5 | 31 | CRI | 1.2 | 1.1 | 45 | 4 |
2 | 308 | 7 | -41 | DAI | 18.7 | 8 | 58 | 31 |
3 | 309 | 8.5 | -53 | CSI | 2.7 | 2.6 | 70 | 6 |