Viewing archive of Sunday, 23 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 |
|---|---|---|---|
| 43 14 | 0 | B1.41 | B5.41 |
Sunspot regions
Region 12651 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 | 140 10 | CAO | N11E17 | |
|
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Solar flares on this day | ||||
| B2.66 B4.91 | ||||
Region 12653 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 100 60 | HAX | S09E57 | |
|
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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
Do the high-resolution sunspot counts point to more complex sunspots? 56Incoming & Unnumbered Active Regions 154Feb 8-9 CMEs 21AR4366 999AR4362 19
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| Spotless days | |
|---|---|
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|---|---|
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