Viewing archive of Tuesday, 28 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 | M |
|---|---|---|---|---|---|
| 77 -32 | 0 | C1.09 | M6.5 | 7 | 1 |
Sunspot regions
Region 8804 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -2 | 190 -70 | HSX | S18W64 | |
Region 8806 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 48 9 | 810 -90 | FHC | N20W54 | |
Solar flares on this day | ||||
| M6.5 C1.59 C1.47 C4.4 C2.44 | ||||
Region 8809 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 7 | 40 10 | DAO | N22E27 | |
Region 8810 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 3 | 410 60 | FKO | N38E44 | |
Solar flares on this day | ||||
| C1.38 | ||||
All times in UTC
Latest news
Friday, 17 May 2024
Let's compare! Halloween 2003 VS May 2024 Solar Storms!
Friday, 17 May 2024
Coronal mass ejection impact, New website feature!
Wednesday, 15 May 2024
More X-flares!
Latest forum messages
May 2024 Geomagnetic Storms from AR 13664 (2) 320"It Was Fake, It Was HAARP" - What? 9suggestion for app additional feature 10What makes AR3684 magnetically distinct from AR3685? 3Unproven theories 482
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 | 2024/05/15 | X2.9 |
| Last M-flare | 2024/05/17 | M7.1 |
| 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 |
| May 2024 | 157.2 +20.7 |
| Last 30 days | 174.3 +64.2 |