Top 25 sunspot regions of 2018
On this page you will find an overview of the largest sunspot regions of the year 2018. This page is updated daily. Sunspot information comes from the NOAA SWPC.
| Region | Size | Number of sunspots | Class Magn. | Class Spot | ||
|---|---|---|---|---|---|---|
| 1 | 2018/02/11 | 2699 | 240 | 25 | DAI | |
| 2 | 2018/06/22 | 2715 | 160 | 13 | DAO | |
| 3 | 2018/04/23 | 2706 | 130 | 10 | DAO | |
| 4 | 2018/08/26 | 2720 | 100 | 7 | DAO | |
| 5 | 2018/05/29 | 2712 | 80 | 10 | CSI | |
| 6 | 2018/06/22 | 2713 | 70 | 8 | DSO | |
| 7 | 2018/05/25 | 2711 | 60 | 6 | CAI | |
| 8 | 2018/11/18 | 2727 | 60 | 3 | CAO | |
| 9 | 2018/12/07 | 2729 | 50 | 7 | CRO | |
| 10 | 2018/06/20 | 2714 | 40 | 5 | CAO | |
| 11 | 2018/08/24 | 2719 | 40 | 5 | CRO | |
| 12 | 2018/04/13 | 2704 | 30 | 3 | BXO | |
| 13 | 2018/10/01 | 2723 | 30 | 4 | DRO | |
| 14 | 2018/05/05 | 2708 | 30 | 3 | CRO | |
| 15 | 2018/01/17 | 2696 | 30 | 3 | CRO | |
| 16 | 2018/02/27 | 2700 | 30 | 6 | CRO | |
| 17 | 2018/10/13 | 2724 | 20 | 1 | HRX | |
| 18 | 2018/01/05 | 2693 | 20 | 3 | CRO | |
| 19 | 2018/05/22 | 2710 | 20 | 2 | CRO | |
| 20 | 2018/11/25 | 2728 | 20 | 4 | BXO | |
| 21 | 2018/08/18 | 2718 | 20 | 1 | HRX | |
| 22 | 2018/03/31 | 2703 | 10 | 1 | AXX | |
| 23 | 2018/09/09 | 2721 | 10 | 6 | BXO | |
| 24 | 2018/09/12 | 2722 | 10 | 4 | BXO | |
| 25 | 2018/04/22 | 2707 | 10 | 1 | AXX |
Latest news
Wednesday, 8 May 2024
Sunspot region 3664, major flares and CMEs!
Monday, 6 May 2024
X4.5 solar flare
Saturday, 4 May 2024
Sunspot region 3663, X1 solar flare
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AR3664 397[CME] AR 13664, X1.04, 2024-05-08 76Sporadic E and Flare activity 23all these X- and M- flares CME 08.05-09.05 2Unproven theories 387
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Space weather facts
| Last X-flare | 2024/05/09 | X2.2 |
| Last M-flare | 2024/05/09 | M2.0 |
| Last geomagnetic storm | 2024/05/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 163.9 +73.1 |