Viewing archive of Tuesday, 28 September 1999 - 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 |
|---|---|---|---|---|
| 52 3 | 1 1 | B4 | C6.2 | 2 |
Sunspot regions
Region 8704 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 100 -10 | HSX | S19W67 | |
Region 8706 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 2 | 80 | CAO | N21W27 | |
Region 8708 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 3 | 0 | BXO | S11W09 | |
Region 8710 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 40 10 | HSX | N19E64 | |
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 765X8 CME 19Space Weather Memes 78650 mhz F2 83Do the high-resolution sunspot counts point to more complex sunspots? 48
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| Spotless days | |
|---|---|
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|---|---|
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