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Relevé H-Alpha du 2025-08-13 07:37 UTC
H-Alpha — August 13, 2025 at 07:37 AM · by solarium · Wolf 99
H-Alpha solar observation made on August 13, 2025 by solarium and published on Wolf.Solar. Wolf number 99 (8 groups, 19 spots). Carrington rotation 2301.
Counts
| Groups | 8 |
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| Spots | 19 |
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| Hα active | 0 |
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| Hα quiescent | 6 |
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| Filaments | 16 |
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| Flares | 0 |
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| Plages | 7 |
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Conditions
| Seeing | 2 / 5 |
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| Transparency | 1 / 4 |
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| Cloud cover (octas) | -1 |
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Ephemerides
| Carrington rotation | 2301 |
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| L₀ | 354.92° |
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| B₀ | 6.55° |
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| P | 15.46° |
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| Declination | 14.55° |
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| Julian day | 2460900.81736 |
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