Viewing archive of Sunday, 3 October 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 |
|---|---|---|---|---|
| 117 70 | 5 4 | B4.86 | C4.83 | 5 |
Sunspot regions
Region 8710 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 10 | AXX | N21E00 | |
Region 8713 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 20 10 | HRX | S12E19 | |
Region 8714 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 20 | HSX | N14E30 | |
Region 8716 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 160 | CSO | N21E70 | |
Solar flares on this day | ||||
| C4.37 | ||||
All times in UTC
Latest news
Tuesday, 17 March 2026
M2.7 solar flare, CME arrival possible
Sunday, 1 February 2026
Complex sunspot region 4366
Monday, 19 January 2026
CME impact! S4 solar radiation storm
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CMes from ar 4392 (19-21st of march) 5AR4392 (including CMEs) 114CH 31 HSS 18Growth of Cycle 25 987Incoming & Unnumbered Active Regions 224
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Space weather facts
| Last X-flare | 2026/02/04 | X4.21 |
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| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (4%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
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