Viewing archive of Saturday, 4 December 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 |
|---|---|---|---|---|
| 78 -29 | 0 | C1.01 | C6.16 | 3 |
Sunspot regions
Region 8781 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 13 -7 | 190 -90 | DAO | S12W42 | |
Region 8782 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 1 | 310 -90 | FAI | N10W83 | |
Region 8785 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 100 -60 | HSX | N13E43 | |
Region 8786 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 -2 | 0 -10 | BXO | N22W23 | |
Region 8787 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 0 | AXX | N11E30 | |
Region 8788 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 270 90 | HKX | N10E66 | |
Solar flares on this day | ||||
| C6.16 | ||||
Region 8789 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 10 | BXO | N29W23 | |
Latest news
Friday, 10 May 2024
Coronal mass ejection impact, Severe G4 geomagnetic storm possible!
Friday, 10 May 2024
CME impact imminent, Two more earth-directed CMEs
Thursday, 9 May 2024
Severe G4 geomagnetic storm watch
Latest forum messages
Geomagnetic storming, CMEs from AR 13664, 2024-05-09/10 448AR3664 711Tell me if this is a record level of traffic or not 4Is there any truth to this "Internet/Electrical Grid Apocalypse"? 115Space Weather Memes 351
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 | 2024/05/10 | X3.8 |
| Last M-flare | 2024/05/10 | M5.8 |
| Last geomagnetic storm | 2024/05/06 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| April 2024 | 136.5 +31.6 |
| May 2024 | 138 +1.5 |
| Last 30 days | 167.9 +77.8 |