Solar flares — Jan 21, 2000
The strongest solar flare in the day
      
      Flare of M1.4 level (strong) — in 06:48
    
      Solar activity index
Value for Jan 21, 2000 24:00 (end on the day). The maximum value is 10.0

Solar flares in 2 days
Chart of solar activity from Jan 20, 2000 to Jan 21, 2000
Time zone — UTC+00 (London)

          This chart in PNG format — high resolution
      API data: JSON or TXT
        
  List of solar flares for Jan 21, 2000
Total number of flares of class C and higher — 6 flares
C type — 5 | M type — 1 | X type — 0
| start | maximum | end | region | |
|---|---|---|---|---|
| 
             
              
              C2.8
             
           | 
          18:20 | 18:25 | 18:32 | — | 
| 
             
              
              C5.1
             
           | 
          11:33 | 11:42 | 11:52 | 8837 | 
| 
             
              
              C3.5
             
           | 
          08:11 | 08:45 | 08:54 | — | 
| 
             
              
              M1.4
             
           | 
          06:34 | 06:48 | 06:58 | — | 
| 
             
              
              C6.7
             
           | 
          05:02 | 05:10 | 05:15 | — | 
| 
             
              
              C5.8
             
           | 
          01:37 | 01:41 | 01:45 | — | 
