Viewing archive of Saturday, 31 October 2015 - 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 |
|---|---|---|---|---|---|
| 73 -15 | 0 | C1.19 | M1.56 | 13 | 2 |
Sunspot regions
Region 12436 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 60 | CAO | N09W0* | |
Region 12440 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -1 | 10 -20 | BXO | N19W57 | |
|
||||
Region 12441 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -3 | 20 -10 | CRO | N14E08 | |
|
||||
Region 12442 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -1 | 20 -10 | CRO | N16W17 | |
|
||||
Region 12444 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S04E46 | |
|
||||
All times in UTC
Latest news
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Latest forum messages
AR4366 234Do the high-resolution sunspot counts point to more complex sunspots? 39Incoming & Unnumbered Active Regions 141Space Weather Memes 780Current Farside Activity 350
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| Last X-flare | 2026/02/01 | X1.0 |
| Last M-flare | 2026/02/01 | M1.9 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| Last 30 days | 119.2 +2.7 |