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X2.1 solar flare on 2005-09-10
ClassX2.1NOAA report
Peak22:112005-09-10 UTC
Duration73 min
Peak flux2.1e-04W/m²
| Comparison | Value |
|---|---|
| Rank among X flares (1975 – Jun 2017) | 191 / 491 |
| Rank in year | 8 / 699 |
| Other M/X flares that day | 4 |
| M/X flares that month | 36 |
| Solar cycle | Cycle 23 |
| Position on disk | S13E47 |
| Active region | AR 10808 (77 flares) |
Compared with the strongest flares of 2005
X17.0
X7.1
X6.2
X5.4
X3.8
X3.6
X2.6
X2.1
X1.7
X1.7
X1.5
X1.3
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 06:06 | 06:14 | 11 | M3.7 | – | 10808 | |
| 08:59 | 09:07 | 32 | M1.9 | S12E51 | 10808 | |
| 16:34 | 16:43 | 17 | X1.1 | S11E47 | 10808 | |
| 19:10 | 19:36 | 40 | M4.1 | S12E45 | 10808 |
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.
← X1.1 2005-09-10M6.1 2005-09-12 →
About this page
A X2.1 flare that began 2005-09-10 21:30 UTC; No. 8 of 699 C-class-or-larger flares in 2005.