Laboratory of Solar Astronomy

RUS

Solar flares High activity 13 flares in 24 hours | C — 10 | M — 3 | X — 0 |

class time, UTC region

C6.6 21 Jul 00:51 —

C2.4 21 Jul 00:20 —

C7.6 20 Jul 23:24 4493

M3.4 20 Jul 22:25 —

C2.9 20 Jul 21:41 4493

Magnetic storms Quiet conditions Max Kp 1+ in 24 h

Aurora Northern Hemisphere now Russia · Europe · North America

Solar corona — SDO 171 Å

Sun · 171 Å Solar corona now 11 min. ago · 02:05 UTC

Solar disk — SDO HMI

Solar corona — SDO 171 Å

Sun · HMI The Sun now 37 min. ago · 01:40 UTC

Solar wind 295 km/s Sunspots 4 regions

Storm forecast Kp 3+ Max in 24 h

storm probabilities, %

Solar wind forecast WSA-Enlil Model · 3–5 day forecast

Project diary Weak magnetic storms are expected starting Wednesday 20 Jul 2026

Projects Aurora The world’s first solar telescope on a 16U cubesat