R scale
R0
Radio
Space Weather
What the Sun is doing now.
Live geomagnetic conditions and official NOAA space-weather scales. This page refreshes from NOAA data rather than relying on manually written updates.
0.0
Quiet geomagnetic conditions
Kp is a global measure of geomagnetic activity. Higher values indicate a more disturbed magnetosphere and can increase the chance of aurora at lower latitudes, although cloud cover and darkness still matter for visibility.
S scale
S0
Solar radiation
G scale
G0
Geomagnetic
Forecast day 1
R
R0
S
S0
G
G0
Forecast day 2
R
R0
S
S0
G
G1
Forecast day 3
R
R0
S
S0
G
G0
Why this matters
Space weather can affect aurora visibility, radio communications, satellite operations, and other technologies. StarStation uses NOAA measurements and official scale data rather than trying to infer solar conditions from social media or unverified reports.
Source: NOAA Space Weather Prediction Center. Data refreshes every few minutes when available.