Viewing archive of Wednesday, 27 December 2023 - Sunspot regions
Courtesy of SDO, SOHO (NASA) and the [MDI, AIA, EVE, and/or HMI] consortium.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 78 -16 | 1 1 | B7.62 | C1.98 | 4 |
Sunspot regions
Region 13521 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 20 -10 | HSX | N11W91 | |
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Region 13526 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | N13W64 | |
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Region 13528 |
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|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 30 | HSX | N09W0* | |
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Region 13529 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 -2 | 270 -30 | DHO | S20W64 | |
|
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Solar flares on this day | ||||
| C1.6 C1.2 | ||||
Region 13530 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 3 | 50 -10 | CAO | N08W48 | |
|
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Region 13531 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -5 | 150 -50 | CSO | S19W23 | |
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Region 13533 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -3 | 10 | AXX | N15W25 | |
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Region 13534 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 20 | CRO | S12E60 | |
|
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Solar flares on this day | ||||
| C1.2 C1.9 | ||||
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
Incoming & Unnumbered Active Regions 199Guess who’s back? AR4366! 2Do the high-resolution sunspot counts point to more complex sunspots? 74Solar cycle 25, solar maximum, is it over? 48Forum alert bar hidden at the bottom 5
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
| Last M-flare | 2026/02/16 | M2.4 |
| Last geomagnetic storm | 2026/02/22 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (5%) |
| Current stretch | 4 days |
| Monthly mean Sunspot Number | |
|---|---|
| January 2026 | 112.6 -11.4 |
| February 2026 | 78.9 -33.7 |
| Last 30 days | 86.6 -35.9 |