Sun, Nov 1
The Sun right now
Storm on Earth: watch for the aurora
Gold loops are hot gas (about a million degrees) tracing magnetic fields. Bright knots are where flares start.
Biggest flare, 24 hours
B6.3
B: tiny flare, everyday Sun.
Geomagnetic storm
Kp 6
NOAA expects up to Kp 5 on 10/31, 11/1.
🌌 Tonight's aurora forecast →Sunspot number
24
More spots, more flares. The Sun is just past the peak of its 11-year cycle.
Flares this week
Sun, Oct 25now
The next 27 days
No storm days expected this month so far.
NOAA's 27-day outlook, highest Kp per day (UTC). The Sun turns once in 27 days, so a rough guide only: check again closer to the date.
From the Sun to your sky
1. Flare
A flash of X-rays reaches Earth in 8 minutes. It can't hurt you on the ground.
2. CME
A cloud of charged gas may follow, taking 1–3 days to cross to Earth.
3. Aurora
When it hits our magnetic field, Kp jumps and the aurora reaches lower latitudes.
Images: NASA/SDO and the AIA, EVE and HMI science teamsNOAA SWPCNOAA 27-day outlook