Solar Flare WatchSolar flares in 2009
C28
M0
X0
LargestC7.62009-12-18
M/X flares by month
Nearby years (M + X)
134
121
14
10
1
0
23
119
130
111
221
Top 20 flares
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 2009-12-18 | 18:48 | 18:55 | 10 | C7.6 | – | 11035 |
| 2009-12-22 | 04:50 | 04:56 | 10 | C7.2 | S26W46 | 11036 |
| 2009-12-23 | 10:09 | 10:17 | 11 | C6.4 | S28W61 | 11036 |
| 2009-12-16 | 01:02 | 01:24 | 33 | C5.3 | N30W06 | 11035 |
| 2009-12-16 | 12:36 | 13:02 | 44 | C3.7 | – | 11035 |
| 2009-12-10 | 10:56 | 10:57 | 3 | C3.4 | – | – |
| 2009-12-19 | 00:10 | 00:14 | 7 | C2.9 | N30W46 | 11035 |
| 2009-07-05 | 07:07 | 07:13 | 11 | C2.7 | S27W02 | 11024 |
| 2009-12-21 | 07:09 | 07:17 | 13 | C2.5 | – | – |
| 2009-10-28 | 00:45 | 00:53 | 11 | C2.2 | N19W47 | 11029 |
| 2009-09-25 | 00:47 | 01:02 | 29 | C2.0 | – | 11026 |
| 2009-10-27 | 08:57 | 09:24 | 37 | C1.7 | – | – |
| 2009-10-25 | 02:10 | 02:26 | 27 | C1.5 | – | 11029 |
| 2009-10-27 | 10:12 | 10:21 | 22 | C1.4 | – | – |
| 2009-12-16 | 21:35 | 21:49 | 50 | C1.4 | N29W17 | 11035 |
| 2009-10-26 | 22:35 | 22:50 | 18 | C1.3 | N16W30 | 11029 |
| 2009-12-22 | 20:23 | 20:27 | 9 | C1.3 | – | – |
| 2009-10-26 | 18:38 | 19:06 | 33 | C1.2 | N16W29 | 11029 |
| 2009-10-27 | 04:49 | 05:00 | 21 | C1.2 | – | – |
| 2009-10-27 | 07:05 | 07:24 | 25 | C1.2 | N15W34 | 11029 |
All times UTC. Until June 2017 classes are NOAA's reports of the time (GOES-15 and earlier included a 0.7 scaling factor); later classes come from calibrated GOES-16/18 data, so the same flare reads about 1.4× larger. Do not compare the two periods directly.
About this page
28 flares of class C+ in 2009: 0 M-class and 0 X-class.