Viewing archive of Friday, 28 May 2021 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 28 -6 | 0 | B1.37 | C9.47 | 2 |
Sunspot regions
Region 12824 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -1 | 250 | DHO | N18W67 | |
|
||||
Solar flares on this day | ||||
| B2.1 B2.7 B2.7 B4.8 C9.5 | ||||
Region 12826 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -5 | 280 | DKO | N22W86 | |
|
||||
Solar flares on this day | ||||
| B3.1 B1.8 B1.7 B5.0 B2.2 C3.0 B1.9 B3.0 B2.9 B2.1 | ||||
All times in UTC
Latest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
Filaments and prominences 2CME 16Filaments and prominences (old topic) 756Unspecified geomagnetic activity 2239AR 4055 34
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/11 | M1.0 |
| Last geomagnetic storm | 2025/04/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2025 | 134.2 -20.4 |
| April 2025 | 139.5 +5.3 |
| Last 30 days | 136.6 -3.5 |