Sunspot regions Help
On this page you'll find an overview of all the visible sunspot regions on the Sun together with their properties, images and the chances on solar flares or proton events. This page is updated daily and the sunspot images every hour.
Today's Sun
| Sunspot number | 72 | 6 |
| New regions | 0 | |
| 10.7cm Solar Radio Flux | 111 | |
| Carrington Rotation | 2308 | |
Regions due to return
| Region | Lat. |
|---|---|
| 4386 | N16 |
Region 4391 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 | BXO | N07W56 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 5% | 1% | 1% | 1% | |
Region 4392 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 13 -3 | 170 -30 | CAI | S17W08 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 55% | 15% | 5% | 5% | |
Solar flares from today | ||||
| C3.9 C2.7 M2.7 C2.8 C3.6 | ||||
Region 4393 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 4 -1 | 30 | CRO | N14W40 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 15% | 1% | 1% | 1% | |
Solar flares from today | ||||
| C1.0 | ||||
Region 4395 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 7 -3 | 10 -20 | BXO | S06E04 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 10% | 1% | 1% | 1% | |
Region 4397 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 3 | 40 | BXO | N16E72 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 0% | 0% | 0% | 0% | |
Solar flares from today | ||||
| C1.1 C1.2 | ||||
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Latest forum messages
AR4392 (including CMEs) 91Incoming & Unnumbered Active Regions 224Current Farside Activity 418AR4397 1Comet C/2026 A1 (MAPS) for the southern hemisphere 18
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/03/18 | M2.7 |
| Last geomagnetic storm | 2026/03/14 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2026 | 78.2 -34.3 |
| March 2026 | 82.4 +4.2 |
| Last 30 days | 61.1 -58.1 |