Search
Relevé H-Alpha du 2025-04-20 09:00 UTC
H-Alpha — April 20, 2025 at 09:00 AM · by astrololo31 · Wolf 88
H-Alpha solar observation made on April 20, 2025 by astrololo31 and published on Wolf.Solar. Wolf number 88 (7 groups, 18 spots). Carrington rotation 2296.
Counts
| Groups | 7 |
|---|
| Spots | 18 |
|---|
| Hα active | 2 |
|---|
| Hα quiescent | 11 |
|---|
| Filaments | 15 |
|---|
| Flares | 0 |
|---|
| Plages | 7 |
|---|
Conditions
| Seeing | 2 / 5 |
|---|
| Transparency | 2 / 4 |
|---|
| Cloud cover (octas) | 3 |
|---|
Ephemerides
| Carrington rotation | 2296 |
|---|
| L₀ | 75.44° |
|---|
| B₀ | -5.17° |
|---|
| P | -25.56° |
|---|
| Declination | 11.66° |
|---|
| Julian day | 2460785.87500 |
|---|
View on Wolf.Solar ↗