Viewing archive of Friday, 23 April 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 |
|---|---|---|---|
| 71 9 | 1 1 | B2.29 | B9.06 |
Sunspot regions
Region 8516 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 3 | 40 -10 | CSO | S20W36 | |
Region 8518 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 18 1 | 170 10 | EAO | S15E04 | |
Region 8521 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 8 4 | 30 | CAO | N34W46 | |
All times in UTC
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| Spotless days | |
|---|---|
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