Solar Flare WatchHome › Flare history › 1999
M5.3 solar flare on 1999-12-22
ClassM5.3NOAA report
Peak19:041999-12-22 UTC
Duration16 min
Peak flux5.3e-05W/m²
| Comparison | Value |
|---|---|
| Rank in year | 19 / 2025 |
| Other M/X flares that day | 1 |
| M/X flares that month | 9 |
| Solar cycle | Cycle 23 |
| Position on disk | N24E19 |
| Active region | AR 8806 (40 flares) |
Compared with the strongest flares of 1999
X1.8
X1.4
X1.4
X1.1
M9.8
M8.0
M7.6
M7.4
M6.6
M6.2
M6.0
M6.0
Other M/X flares that day
| Date | Begin | Peak | Min | Class | Location | Region |
|---|---|---|---|---|---|---|
| 01:50 | 02:16 | 42 | M1.8 | N10E30 | 8807 |
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.
← X1.4 1999-11-27X1.2 2000-02-05 →
About this page
A M5.3 flare that began 1999-12-22 18:52 UTC; No. 19 of 2,025 C-class-or-larger flares in 1999.