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Relevé H-Alpha du 2023-02-18 09:50 UTC
H-Alpha — February 18, 2023 at 09:50 AM · by astrololo31 · Wolf 81
H-Alpha solar observation made on February 18, 2023 by astrololo31 and published on Wolf.Solar. Wolf number 81 (7 groups, 11 spots). Carrington rotation 2267.
Counts
| Groups | 7 |
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| Spots | 11 |
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| Hα active | 2 |
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| Hα quiescent | 5 |
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| Filaments | 17 |
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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 | 2 / 4 |
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| Cloud cover (octas) | 0 |
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Ephemerides
| Carrington rotation | 2267 |
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| L₀ | 87.59° |
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| B₀ | -6.95° |
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| P | -18.39° |
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| Declination | -11.66° |
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| Julian day | 2459993.90972 |
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