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 | 283 | |
| New regions | 1 | -4 |
| 10.7cm Solar Radio Flux | 227 | 10 |
| Carrington Rotation | 2283 | |
Regions due to return
| Region | Lat. |
|---|---|
| None | |
Region 3638 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 10 1 | 10 | BXO | S18W61 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 25% | 1% | 1% | 1% | |
Solar flares from today | ||||
| C5.4 C4.6 | ||||
Region 3639 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 9 -3 | 160 -40 | EAI | N28W55 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 60% | 20% | 5% | 5% | |
Region 3643 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 6 -1 | 10 -10 | BXO | S13W42 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 20% | 1% | 1% | 1% | |
Region 3644 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 6 3 | 80 -70 | DAO | N13W12 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 30% | 5% | 1% | 1% | |
Region 3645 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 17 -1 | 250 -10 | DKC | S08W58 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 75% | 25% | 5% | 5% | |
Solar flares from today | ||||
| C4.4 | ||||
Region 3646 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 18 4 | 200 100 | DAI | N21W10 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 50% | 10% | 1% | 1% | |
Region 3647 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 20 3 | 190 -10 | DAC | S13W53 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 70% | 20% | 5% | 5% | |
Region 3648 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 5 | 10 | BXO | N18W27 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 15% | 1% | 1% | 1% | |
Region 3649 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 3 | 20 | CSO | N17W72 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 15% | 1% | 1% | 1% | |
Region 3650 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 12 4 | 110 10 | CAI | S11W31 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 50% | 5% | 1% | 1% | |
Region 3652 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 5 -1 | 120 | DSO | N15E06 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 25% | 5% | 1% | 1% | |
Region 3654 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 13 11 | 160 140 | DAI | S09E37 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 60% | 20% | 1% | 1% | |
Solar flares from today | ||||
| M3.5 M3.0 | ||||
Region 3655 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 4 -2 | 130 100 | DAO | S27E39 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 30% | 5% | 1% | 1% | |
Region 3656 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 3 1 | 10 | CRO | S12E49 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 15% | 5% | 1% | 1% | |
Region 3657 | ||||
|---|---|---|---|---|
| Number of sunspots | Size | Class Magn. | Class Spot | Location |
| 1 -1 | 10 | BXO | S11E20 | |
  | ||||
Flare probabilities | ||||
| C | M | X | Proton | |
| 10% | 1% | 1% | 1% | |
Latest news
Monday, 22 April 2024
Lot's of sunspots! Big chance for major flare activity?
Saturday, 23 March 2024
X1.1 solar flare with earth-directed CME
Wednesday, 20 March 2024
Sunspot region 3615, G1 watch
Latest forum messages
Unproven theories 340AR 3637, 3638, 3643 67Filaments and prominences 55Space Weather Memes 336Growth of Cycle 25 433
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Space weather facts
| Last X-flare | 2024/03/28 | X1.1 |
| Last M-flare | 2024/04/23 | M3.0 |
| Last geomagnetic storm | 2024/04/19 | Kp7 (G3) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| March 2024 | 104.9 -19.8 |
| Last 30 days | 125.4 +21.1 |