Sunspot region AR8728
| Number of sunspots |
Size | Class Magn. | Class Spot | Location | |
|---|---|---|---|---|---|
| 1999/10/09 | 1 | 30 | HSX | N22E74 | |
| 1999/10/10 | 10 | 150 | CAO | N21E62 | |
| 1999/10/11 | 13 | 340 | DHO | N22E50 | |
| 1999/10/12 | 22 | 560 | EKI | N22E38 | |
| 1999/10/13 | 19 | 560 | EKI | N22E25 | |
| 1999/10/14 | 26 | 520 | FKO | N23E15 | |
| 1999/10/15 | 21 | 330 | EKO | N22E00 | |
| 1999/10/16 | 20 | 310 | EAO | N22W13 | |
| 1999/10/17 | 29 | 290 | EAO | N23W26 | |
| 1999/10/18 | 10 | 220 | EAO | N23W40 | |
| 1999/10/19 | 2 | 170 | CSO | N22W59 | |
| 1999/10/20 | 3 | 130 | DAO | N24W70 | |
| 1999/10/21 | 3 | 110 | CAO | N24W83 | |
| 1999/10/22 | 1 | 80 | HAX | N22W94 |
| C |
|---|
| 2 |
The top 2 solar flares from sunspot region 8728
| Start | Maximum | End | ||||
|---|---|---|---|---|---|---|
| 1 | C3.31 | 1999/10/16 | 05:05 | 05:17 | 05:20 | |
| 2 | C2.24 | 1999/10/18 | 18:52 | 18:57 | 19:03 |
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
AR 13932 30Unspecified geomagnetic activity 1752Incoming & Unnumbered Active Regions 1364Ask your obscure/"stupid" space weather questions. 114Strong far side CME 340
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Space weather facts
| Last X-flare | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/23 | M8.9 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 106.6 -45.9 |
| Last 30 days | 116.1 -41.8 |