ENG

About site
Projects
Project diary
Gallery
Astronomy news
Space weather today

Sun images
Geomagnetic storms online
Sun flares
Geomagnetic activity forecast
Active areas

April : 2017
su	mo	tu	we	th	fr	st
						1
2	3	4	5	6	7	8
9	10	11	12	13	14	15
16	17	18	19	20	21	22
23	24	25	26	27	28	29
30

Diary

Nov 4, 2025 VIDEO: A solar flare of the highest magnitude occurred on November 4th.
Nov 4, 2025 On this day 22 years ago, the most powerful solar flare of the 21st century occurred.
Nov 4, 2025 Solar activity continues to increase, but is still occurring at a safe distance from Earth.

Diary's archive

Geomagnetic activity forecast in Station Vostok — Apr 21, 2017

Apr 21, 2017 Station Vostok

Previous day Next day

No data

© Laboratory of Solar Astronomy, SRI RAS