Viewing archive of Thursday, 28 January 1999 - Sunspot regions
It appears that the image of the visible solar disk for this day in history is missing.
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 37 -27 | 0 -1 | C1.06 | C1.66 | 2 |
Sunspot regions
Region 8443 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 10 | BXO | S16W43 | |
Region 8444 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 60 -10 | CSO | N19W77 | |
Region 8448 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 | AXX | S17W18 | |
Region 8449 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 2 | 0 -10 | BXO | N27W35 | |
Region 8450 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 0 | BXO | N21W19 | |
All times in UTC
Latest news
Monday, 19 January 2026
CME impact! S4 solar radiation storm
Sunday, 18 January 2026
X1.9 solar flare with earth-directed CME
Wednesday, 31 December 2025
Happy New Year! Celebrate with an M7.1 solar flare!
Latest forum messages
AR4366 52Incoming & Unnumbered Active Regions 139X1.9 CME 1342Broad-spectrum aurora pillars 47CH 17 14
More topicsSupport SpaceWeatherLive.com!
A lot of people come to SpaceWeatherLive to follow the Solar activity or if there is a chance to see the aurora, but with more traffic comes higher costs to keep the servers online. If you like SpaceWeatherLive and want to support the project you can choose a subscription for an ad-free site or consider a donation. With your help we can keep SpaceWeatherLive online!
Space weather facts
| Last X-flare | 2026/01/18 | X1.9 |
| Last M-flare | 2026/01/21 | M3.4 |
| Last geomagnetic storm | 2026/01/28 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| December 2025 | 124 +32.2 |
| Last 30 days | 119.2 +2.7 |