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Relevé H-Alpha du 2026-04-17 14:57 UTC
H-Alpha — April 17, 2026 at 02:57 PM · by solarium · Wolf 40
H-Alpha solar observation made on April 17, 2026 by solarium and published on Wolf.Solar. Wolf number 40 (3 groups, 10 spots). Carrington rotation 2310.
Counts
| Groups | 3 |
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| Spots | 10 |
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| Hα active | 3 |
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| Hα quiescent | 1 |
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| Filaments | 4 |
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| Flares | 0 |
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| Plages | 2 |
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Conditions
| Seeing | 3 / 5 |
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| Transparency | 2 / 4 |
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| Cloud cover (octas) | -1 |
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Ephemerides
| Carrington rotation | 2310 |
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| L₀ | 334.23° |
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| B₀ | -5.42° |
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| P | -25.83° |
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| Declination | 10.62° |
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| Julian day | 2461148.12292 |
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