Sunspot region AR8737
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/20 | 8 | 50 | CAO | S15E14 | |
| 1999/10/21 | 17 | 70 | DAO | S16E01 | |
| 1999/10/22 | 28 | 170 | EAI | S15W12 | |
| 1999/10/23 | 22 | 310 | EAI | S15W26 | |
| 1999/10/24 | 17 | 270 | EKO | S14W40 | |
| 1999/10/25 | 13 | 330 | EKO | S13W54 | |
| 1999/10/26 | 5 | 370 | EAO | S13W67 | |
| 1999/10/27 | 5 | 360 | EAO | S15W78 | |
| 1999/10/28 | 1 | 140 | HSX | S13W89 |
| C | M |
|---|---|
| 4 | 1 |
The top 5 solar flares from sunspot region 8737
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | M2.59 | 1999/10/27 | 13:24 | 13:37 | 14:01 | |
| 2 | C6.89 | 1999/10/25 | 19:28 | 19:48 | 20:01 | |
| 3 | C4.43 | 1999/10/26 | 12:56 | 13:00 | 13:03 | |
| 4 | C2.84 | 1999/10/21 | 06:20 | 06:25 | 06:30 | |
| 5 | C1.59 | 1999/10/19 | 17:07 | 17:16 | 17:21 |
Latest news
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Friday, 1 November 2024
X2.0 solar flare
Latest forum messages
>500 meV 22AR 3906 7Suggestion - Can admins automatically generate "official" AR topic threads as the regions appear and are numbered? 2Comment limitation 6Incoming & Unnumbered Active Regions 1257
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!
Space weather facts
| Last X-flare | 2024/11/06 | X2.39 |
| Last M-flare | 2024/11/23 | M1.1 |
| Last geomagnetic storm | 2024/11/10 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| October 2024 | 166.4 +25 |
| November 2024 | 144.1 -22.3 |
| Last 30 days | 158.7 +10.9 |