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Relevé H-Alpha du 2026-04-17 09:15 UTC
H-Alpha — April 17, 2026 at 09:15 AM · by astrololo31 · Wolf 45
H-Alpha solar observation made on April 17, 2026 by astrololo31 and published on Wolf.Solar. Wolf number 45 (3 groups, 15 spots). Carrington rotation 2310.
Counts
| Groups | 3 |
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| Spots | 15 |
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| Hα active | 3 |
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| Hα quiescent | 6 |
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| Filaments | 3 |
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| Flares | 0 |
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| Plages | 5 |
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Conditions
| Seeing | 2 / 5 |
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| Transparency | 2 / 4 |
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| Cloud cover (octas) | 2 |
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Ephemerides
| Carrington rotation | 2310 |
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| L₀ | 337.36° |
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| B₀ | -5.44° |
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| P | -25.85° |
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| Declination | 10.54° |
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| Julian day | 2461147.88542 |
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View on Wolf.Solar ↗
Protubérance en arche au limbe Sud-Est