Viewing archive of Sunday, 21 August 2011 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 66 7 | 1 | B2.86 | C2.19 | 2 |
Sunspot regions
Region 11271 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 22 10 | 260 20 | DHO | N16E10 | |
Region 11272 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 3 | 50 20 | CAO | S22E15 | |
Solar flares on this day | ||||
| B5.2 B8.57 B6.23 B8.31 C2.18 B8.92 B6.52 C1.76 | ||||
Region 11274 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 30 | HRX | N19E70 | |
Solar flares on this day | ||||
| B4.92 | ||||
All times in UTC
Latest news
Friday, 1 November 2024
X2.0 solar flare
Wednesday, 9 October 2024
X1.8 solar flare, severe geomagnetic storm watch
Tuesday, 8 October 2024
Double X-flares, glancing blow possible
Latest forum messages
AR13889 32Filaments and prominences 383Unspecified geomagnetic activity 1608DSCOVR data loss - is it due to CME impact or other reasons? 3Space Weather Memes 559
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 | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/10 | M4.2 |
| Last geomagnetic storm | 2024/10/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 187.3 +20.9 |
| Last 30 days | 162.6 +13.7 |