Viewing archive of Monday, 4 October 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 |
|---|---|---|---|---|
| 148 31 | 2 -3 | B6 | C7.17 | 4 |
Sunspot regions
Region 8710 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 -10 | AXX | N22W13 | |
Region 8713 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 1 | 0 -20 | AXX | S12E06 | |
Region 8714 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 1 | 20 | HSX | N14E17 | |
Region 8716 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 5 1 | 200 40 | CSO | N20E60 | |
Region 8717 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 2 | 10 | BXO | S26W59 | |
Region 8718 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 10 | BXO | S27E02 | |
Region 8719 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 3 | 60 | CSO | S20E50 | |
Region 8720 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 4 | 20 | BXO | N14E65 | |
Solar flares on this day | ||||
| C7.17 C1.08 | ||||
Region 8721 |
||||
|---|---|---|---|---|
| Number of sunspots |
Size | Class Magn. | Class Spot | Location |
| 6 | 50 | CSO | S17E56 | |
All times in UTC
Latest news
Sunday, 8 December 2024
X2.2 solar flare, SDO outage
Thursday, 21 November 2024
Major far side eruption, S1 radiation storm
Monday, 11 November 2024
Coronal hole faces Earth
Latest forum messages
Strong far side CME 337Incoming & Unnumbered Active Regions 135850 mhz F2 51AR 13932 13Power transmission for all of us. And why I believe we are better prepared than ever for major solar events 11
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 | 2024/12/08 | X2.2 |
| Last M-flare | 2024/12/23 | M1.0 |
| Last geomagnetic storm | 2024/12/17 | Kp5+ (G1) |
| Spotless days | |
|---|---|
| Last spotless day | 2022/06/08 |
| Monthly mean Sunspot Number | |
|---|---|
| November 2024 | 152.5 -13.9 |
| December 2024 | 106.6 -45.9 |
| Last 30 days | 116.1 -41.8 |