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Relevé H-Alpha du 2023-02-12 10:30 UTC
H-Alpha — February 12, 2023 at 10:30 AM · by astrololo31 · Wolf 74
H-Alpha solar observation made on February 12, 2023 by astrololo31 and published on Wolf.Solar. Wolf number 74 (6 groups, 14 spots). Carrington rotation 2267.
Counts
| Groups | 6 |
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| Groups North | 4 |
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| Groups South | 2 |
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| Spots | 14 |
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| Spots North | 11 |
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| Spots South | 3 |
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| Hα active | 0 |
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| Hα quiescent | 12 |
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| Filaments | 13 |
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| Flares | 1 |
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| Plages | 9 |
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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 | 166.24° |
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| B₀ | -6.69° |
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| P | -16.40° |
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| Declination | -13.71° |
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| Julian day | 2459987.93750 |
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