Viewing archive of Wednesday, 17 December 2014 - 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 | X |
|---|---|---|---|---|---|---|
| 154 -15 | 0 | C1.71 | X1.25 | 2 | 6 | 1 |
Sunspot regions
Region 12230 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -5 | 80 -70 | HAX | S14W74 | |
|
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Region 12234 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 90 20 | HSX | N05W71 | |
|
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Region 12235 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 1 | 160 | CAO | S07W17 | |
|
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Region 12236 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 120 -50 | CAO | N29E08 | |
|
||||
Region 12237 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 80 40 | HSX | S13W02 | |
|
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Region 12239 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 13 3 | 80 20 | DAI | N13W02 | |
|
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Region 12240 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 2 | 70 10 | CAO | N10E33 | |
|
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Region 12241 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 24 17 | 220 70 | EAC | S10E30 | |
|
||||
Solar flares on this day | ||||
| M1.61 C9.6 M2.11 M1.24 | ||||
Region 12242 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 25 10 | 630 270 | DKC | S19E11 | |
|
||||
Solar flares on this day | ||||
| M2.16 X1.25 M1.42 M1.01 C4.66 | ||||
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| Last M-flare | 2025/12/06 | M8.1 |
| Last geomagnetic storm | 2025/12/04 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2025 | 91.8 -22.8 |
| December 2025 | 167.7 +75.9 |
| Last 30 days | 107.1 +13.7 |