Viewing archive of Friday, 18 February 2011 - 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 | M |
|---|---|---|---|---|---|
| 101 50 | 1 1 | C1.16 | M9.44 | 12 | 8 |
Sunspot regions
Region 11158 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 17 -2 | 290 -330 | EAC | S19W52 | |
Solar flares on this day | ||||
| C2.49 M1.22 M9.61 M2.15 C5.81 C7.21 C4.56 | ||||
Region 11161 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 14 5 | 140 20 | EAC | N12E13 | |
Solar flares on this day | ||||
| C2.9 C5.76 | ||||
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
New satellites - Proba-3, PUNCH, SWFO-L1, GOES-U/19 47Incoming & Unnumbered Active Regions 1673AR 4054 21AR4048 124Unspecified geomagnetic activity 2229
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!
Latest alerts
15:15 UTC - Geomagnetic activity
Minor G1 geomagnetic storm (Kp5) Threshold Reached: 14:59 UTC
06:30 UTC - Type II Radio Emission
Begin Time: 08/04/2025 05:53 UTC Estimated Velocity: 456km/sec.
05:15 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 06:02 UTC
00:55 UTC - Coronal hole
A southern hemisphere coronal hole is facing Earth. Enhanced solar wind could arrive in ~3 days
Monday, 7 April 2025
20:45 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 20:39 UTC
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/05 | 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 | 151.3 +17.1 |
| Last 30 days | 135.2 -4.5 |