Viewing archive of Sunday, 2 April 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 | M |
|---|---|---|---|---|---|
| 75 -4 | 0 -1 | C1.13 | M8.2 | 4 | 5 |
Sunspot regions
Region 12644 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 4 | 200 10 | EKC | N14W55 | |
|
||||
Solar flares on this day | ||||
| B7.14 C1.69 M7.73 M3.4 C4.39 M3.08 M8.22 C6.7 | ||||
Region 12645 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 25 -4 | 520 140 | EKC | S09W11 | |
|
||||
Solar flares on this day | ||||
| C1.47 M1.14 | ||||
Region 12647 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 2 | 10 | BXO | N11W13 | |
|
||||
Region 12648 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | S03E72 | |
|
||||
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
Space Weather Memes 767AR14317 & 14318 46Solar Transit, Artifacts, or Radiation 74Airbus issues re Solar radiation 15AR14324 7
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 | 2025/12/29 | M2.2 |
| Last geomagnetic storm | 2025/12/22 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 116.5 +24.7 |
| Last 30 days | 116.2 +30.6 |