Viewing archive of Saturday, 28 April 2001 - 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 |
|---|---|---|---|---|---|
| 173 -8 | 2 1 | C1.26 | M1.01 | 5 | 1 |
Sunspot regions
Region 9431 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 -10 | AXX | S10W85 | |
Region 9433 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 45 -19 | 910 20 | FKI | N17W38 | |
Solar flares on this day | ||||
| C4.45 M1.01 | ||||
Region 9435 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 -1 | 160 -20 | CAO | S20W80 | |
Region 9436 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 160 | HSX | S10W06 | |
Region 9437 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 -4 | 30 -10 | CAO | N09W05 | |
Region 9439 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 -1 | 20 | HRX | S20W55 | |
Region 9440 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 30 20 | DRO | N08E05 | |
Region 9441 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 15 11 | 150 120 | DAO | N08E38 | |
Region 9442 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 60 20 | HSX | N28E47 | |
Region 9443 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S10E21 | |
All times in UTC
Current data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Yellowknife, NTLatest news
Friday, 28 March 2025
X1.1 solar flare
Monday, 24 March 2025
Coronal hole faces Earth
Saturday, 22 March 2025
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
AR4048 57Similar AR 3664 vs AR 4048 ??? 6Temporary Topic - Ongoing Solar Proton Events 5Unspecified geomagnetic activity 2176NOAA space weather enthusiasts darhboard 4
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!
Latest alerts
02:15 UTC - Solar protons
Moderate S2 Solar Radiation Storm - Infrequent effects on HF radio through polar regions and satellite operations
Monday, 31 March 2025
11:15 UTC - Solar protons
Minor S1 Solar Radiation Storm - Minor impacts on HF radio through polar regions
10:45 UTC - Solar flare
Moderate M1.26 flare
10:27 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.22)
00:09 UTC - Solar flare
Moderate M1.03 flare
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/03/31 | M1.2 |
| Last geomagnetic storm | 2025/03/27 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| February 2025 | 154.6 +17.6 |
| Last 30 days | 128.5 -22.7 |