juliensimon/silso-sunspot-number
SILSO Daily Sunspot Number Credit: NASA/SDO Part of a dataset collection on Hugging Face. Dataset description Daily total sunspot numbers from the World Data Center SILSO at the Royal Observatory of Belgium. This is the longest continuous scientific observation in history, with systematic daily records since 1818 and international coordination since 1981. The International Sunspot Number is the primary index of solar activity, tracking the number of… See the full description on the dataset page: https://huggingface.co/datasets/juliensimon/silso-sunspot-number.
| Author / organization | juliensimon |
|---|---|
| License (as declared) | cc-by-nc-4.0 |
| Downloads | 186 (as reported by Hugging Face) |
| Likes | 0 |
| Created | 24 March 2026 |
| Last updated at source | 1 October 2026 |
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