Sunspot region AR8156
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1998/02/11 | 3 | 20 | BXO | S24E71 | |
| 1998/02/12 | 6 | 40 | CSO | S24E57 | |
| 1998/02/13 | 11 | 210 | DSO | S25E43 | |
| 1998/02/14 | 16 | 300 | EAI | S25E30 | |
| 1998/02/15 | 29 | 360 | EKI | S24E16 | |
| 1998/02/16 | 26 | 380 | ESI | S25E04 | |
| 1998/02/17 | 24 | 520 | EKI | S25W09 | |
| 1998/02/18 | 24 | 480 | EKI | S25W21 | |
| 1998/02/19 | 16 | 370 | EHI | S25W34 | |
| 1998/02/20 | 10 | 380 | EHI | S25W47 | |
| 1998/02/21 | 9 | 360 | EKO | S25W60 | |
| 1998/02/22 | 5 | 350 | DKO | S25W72 | |
| 1998/02/23 | 2 | 200 | HSX | S25W89 |
| B | C |
|---|---|
| 14 | 11 |
The top 10 solar flares from sunspot region 8156
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C6.9 | 1998/02/18 | 11:38 | 11:47 | 11:53 | |
| 2 | C3.94 | 1998/02/17 | 09:48 | 09:53 | 09:56 | |
| 3 | C2.29 | 1998/02/15 | 11:37 | 11:48 | 11:59 | |
| 4 | C1.97 | 1998/02/18 | 09:17 | 09:27 | 09:31 | |
| 5 | C1.8 | 1998/02/15 | 04:20 | 04:24 | 04:29 | |
| 6 | C1.54 | 1998/02/19 | 05:22 | 05:28 | 05:32 | |
| 7 | C1.41 | 1998/02/20 | 10:01 | 10:11 | 10:21 | |
| 8 | C1.4 | 1998/02/15 | 07:07 | 07:16 | 07:22 | |
| 9 | C1.14 | 1998/02/19 | 14:51 | 14:57 | 15:03 | |
| 10 | C1.12 | 1998/02/14 | 09:32 | 09:52 | 10:08 |
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