Viewing archive of Thursday, 31 August 2017 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 59 17 | 1 1 | B2.57 | C1.13 | 1 |
Sunspot regions
Region 12672 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 3 | 70 10 | DSO | N06W63 | |
|
||||
Solar flares on this day | ||||
| B3.28 C1.1 | ||||
Region 12673 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 70 | HSX | S08E48 | |
|
||||
Region 12674 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 4 | 490 230 | EKO | N14E64 | |
|
||||
Solar flares on this day | ||||
| B4.68 | ||||
All times in UTC
Latest news
Sunday, 7 December 2025
M8.1 solar flare with earth-directed CME
Monday, 1 December 2025
X1.9 solar flare, Coronal hole faces Earth
Friday, 14 November 2025
X4.0 solar flare
Latest forum messages
New near-realtime spacecraft auroral activity images 22AR4299 M8.1 CME 2025/12/06 505Incoming & Unnumbered Active Regions 24Coronal Hole 06 30AR 4299 155
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2025/12/08 | X1.1 |
| Last M-flare | 2025/12/12 | M1.1 |
| Last geomagnetic storm | 2025/12/12 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 144.3 +52.5 |
| Last 30 days | 107.5 +8.8 |