Viewing archive of Monday, 4 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 |
|---|---|---|---|---|
| 148 31 | 2 -3 | B6 | C7.17 | 4 |
Sunspot regions
Region 8710 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 -10 | AXX | N22W13 | |
Region 8713 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 -20 | AXX | S12E06 | |
Region 8714 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 20 | HSX | N14E17 | |
Region 8716 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 200 40 | CSO | N20E60 | |
Region 8717 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | S26W59 | |
Region 8718 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S27E02 | |
Region 8719 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 60 | CSO | S20E50 | |
Region 8720 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 20 | BXO | N14E65 | |
Solar flares on this day | ||||
| C7.17 C1.08 | ||||
Region 8721 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 50 | CSO | S17E56 | |
All times in UTC
Latest news
Wednesday, 29 May 2024
X1.4 solar flare from sunspot region 3697
Monday, 27 May 2024
X2.9 solar flare, Welcome back 3664?
Friday, 17 May 2024
Let's compare! Halloween 2003 VS May 2024 Solar Storms!
Latest forum messages
Filaments and prominences 163AR 3679- AR 3683 4AR 3697 188Incoming Active Regions 461Unproven theories 555
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Sun's activity or if there is aurora to be seen, but with more traffic comes higher server costs. Consider a donation if you enjoy SpaceWeatherLive so we can keep the website online!
Space weather facts
| Last X-flare | 2024/05/31 | X1.1 |
| Last M-flare | 2024/05/31 | M1.0 |
| Last geomagnetic storm | 2024/05/17 | Kp6 (G2) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| Last 30 days | 147.7 +4.8 |