Viewing archive of Thursday, 4 March 1999 - Sunspot regions
| Sunspot number | New regions | Background flux | Maximum flux | C |
|---|---|---|---|---|
| 144 -4 | 0 -1 | B6.14 | C2 | 5 |
Sunspot regions
Region 8471 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 11 -8 | 170 10 | CAO | N29W53 | |
Region 8475 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 17 2 | 140 -10 | EAO | N31W11 | |
Region 8476 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 21 6 | 150 80 | DSI | N18W23 | |
Region 8477 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 110 | DSO | S26E40 | |
Solar flares on this day | ||||
| C1.49 | ||||
Region 8478 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 2 | 20 | CRO | S15W40 | |
Region 8479 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 2 | 20 | CSO | S14W32 | |
Region 8480 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 10 10 | BXO | N25E51 | |
Region 8481 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | S18W15 | |
All times in UTC
Current data suggests there is a moderate possibility for aurora to appear at the following high latitude regions in the near future
Gillam, MB, Yellowknife, NTCurrent data suggests there is a slight possibility for aurora to appear at the following high latitude regions in the near future
Edmonton, AB, Iqaluit, NU, Saskatoon, SKNuuk
Latest news
X1.1 solar flare
Coronal hole faces Earth
Strong G3 geomagnetic storm watch for 23 March
Latest forum messages
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
04:03 UTC - Hemispheric Power Index
The OVATION model predicts the Hemispheric Power Index to reach 50GW at 04:56 UTC
01:45 UTC - Geomagnetic activity
Active geomagnetic conditions (Kp4) Threshold Reached: 01:32 UTC
Tuesday, 1 April 2025
22:51 UTC - Solar flare
Moderate M2.5 flare
22:30 UTC - Radio Blackout
Minor R1 radio blackout in progress (≥M1 - current: M1.45)
07:15 UTC - 10cm Radio Burst
Begin Time: 01/04/2025 06:45 UTC Maximum Time: 01/04/2025 06:45 UTC Duration: 1 minutes. Peak flux: 190 sfu
Space weather facts
| Last X-flare | 2025/03/28 | X1.1 |
| Last M-flare | 2025/04/01 | M2.4 |
| 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 |
| April 2025 | 147 -7.6 |
| Last 30 days | 128.8 -21.8 |