Search
Relevé H-Alpha du 2025-04-28 09:10 UTC
H-Alpha — April 28, 2025 at 09:10 AM · by astrololo31 · Wolf 72
H-Alpha solar observation made on April 28, 2025 by astrololo31 and published on Wolf.Solar. Wolf number 72 (6 groups, 12 spots). Carrington rotation 2297.
Counts
| Groups | 6 |
|---|
| Spots | 12 |
|---|
| Hα active | 1 |
|---|
| Hα quiescent | 7 |
|---|
| Filaments | 9 |
|---|
| Flares | 0 |
|---|
| Plages | 8 |
|---|
Conditions
| Seeing | 2 / 5 |
|---|
| Transparency | 2 / 4 |
|---|
| Cloud cover (octas) | 1 |
|---|
Ephemerides
| Carrington rotation | 2297 |
|---|
| L₀ | 329.66° |
|---|
| B₀ | -4.43° |
|---|
| P | -24.52° |
|---|
| Declination | 14.29° |
|---|
| Julian day | 2460793.88194 |
|---|
View on Wolf.Solar ↗
Grande protubérance en arche au limbe Nord-Ouest