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Relevé H-Alpha du 2025-06-18 08:30 UTC
H-Alpha — June 18, 2025 at 08:30 AM · by astrololo31 · Wolf 77
H-Alpha solar observation made on June 18, 2025 by astrololo31 and published on Wolf.Solar. Wolf number 77 (6 groups, 17 spots). Carrington rotation 2298.
Counts
| Groups | 6 |
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| Spots | 17 |
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| Hα active | 2 |
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| Hα quiescent | 13 |
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| Filaments | 8 |
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| Flares | 1 |
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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) | 0 |
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Ephemerides
| Carrington rotation | 2298 |
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| L₀ | 15.36° |
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| B₀ | 1.41° |
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| P | -8.25° |
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| Declination | 23.41° |
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| Julian day | 2460844.85417 |
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View on Wolf.Solar ↗
éruption groupe NOAA 4117 au limbe SE