Relevé H-Alpha du 2025-07-21 08:09 UTC
H-Alpha solar observation made on July 21, 2025 by solarium and published on Wolf.Solar. Wolf number 79 (7 groups, 9 spots). Carrington rotation 2300.
Counts
| Groups | 7 |
|---|---|
| Spots | 9 |
| Hα active | 1 |
| Hα quiescent | 5 |
| Filaments | 3 |
| Flares | 0 |
| Plages | 2 |
Conditions
| Seeing | 2 / 5 |
|---|---|
| Transparency | 2 / 4 |
| Cloud cover (octas) | -1 |
Ephemerides
| Carrington rotation | 2300 |
|---|---|
| L₀ | 298.80° |
| B₀ | 4.91° |
| P | 6.47° |
| Declination | 20.39° |
| Julian day | 2460877.83958 |
That day in the community
| Daily mean Wolf number | 100 |
|---|---|
| Observations | 5 |
| CR | 2300 |