| Observer | Line Angelsen |
|---|---|
| Location | Horten, Norway Middle latitude |
| Coordinates | 59° 26' 17" N / 10° 26' 36" E |
| Time | Tuesday, 21 April 2026 at 00:00 UTC |
| Duration | 1 hours |
| Aurora visibility | Quiet aurora band |
| Aurora brightness | Faint aurora |
| Aurora forms | Arc Band Rays |
| Aurora Colors | Green Purple |
| Aurora conditions | Kp4+ Hp30: 4o Dst -53nT |
Green glow captured by phone camera by chance, after 15 minutes it started getting visible to the naked eye, after 30 minutes it was clear, green and purple, and moving slowly on over the sky, eventually fading after about 40 minutes, and gone after 1 hour. Picture is taken with Samsung Zflip 3 with pro settings. No filters or enhancements added to photo
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| Last X-flare | 2026/06/03 | X1.0 |
| Last M-flare | 2026/06/06 | M1.8 |
| Last geomagnetic storm | 2026/06/11 | Kp5 (G1) |
| Spotless days | |
|---|---|
| Last 365 days | 3 days |
| 2026 | 3 days (2%) |
| Last spotless day | 2026/02/24 |
| Monthly mean Sunspot Number | |
|---|---|
| May 2026 | 101.4 +22.1 |
| June 2026 | 111.8 +10.3 |
| Last 30 days | 110.1 +14.9 |