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Relevé H-Alpha du 2025-07-20 09:10 UTC
H-Alpha — July 20, 2025 at 09:10 AM · by astrololo31 · Wolf 117
H-Alpha solar observation made on July 20, 2025 by astrololo31 and published on Wolf.Solar. Wolf number 117 (10 groups, 17 spots). Carrington rotation 2300.
Counts
| Groups | 10 |
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| Spots | 17 |
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| Hα active | 0 |
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| Hα quiescent | 7 |
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| Filaments | 6 |
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| Flares | 0 |
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| Plages | 8 |
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Conditions
| Seeing | 3 / 5 |
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| Transparency | 3 / 4 |
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| Cloud cover (octas) | 4 |
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Ephemerides
| Carrington rotation | 2300 |
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| L₀ | 311.48° |
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| B₀ | 4.83° |
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| P | 6.06° |
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| Declination | 20.58° |
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| Julian day | 2460876.88194 |
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