Relevé H-Alpha du 2025-07-18 17:21 UTC
H-Alpha solar observation made on July 18, 2025 by solarium and published on Wolf.Solar. Wolf number 84 (7 groups, 14 spots). Carrington rotation 2300.
Counts
| Groups | 7 |
|---|---|
| Spots | 14 |
| Hα active | 1 |
| Hα quiescent | 3 |
| Filaments | 8 |
| Flares | 0 |
| Plages | 4 |
Conditions
| Seeing | 4 / 5 |
|---|---|
| Transparency | 1 / 4 |
| Cloud cover (octas) | -1 |
Ephemerides
| Carrington rotation | 2300 |
|---|---|
| L₀ | 333.43° |
| B₀ | 4.67° |
| P | 5.34° |
| Declination | 20.88° |
| Julian day | 2460875.22292 |
That day in the community
| Daily mean Wolf number | 153 |
|---|---|
| Observations | 5 |
| CR | 2300 |