Posts by 

Raúl Cortés

Sun

Sun news: M flare erupts as solar activity ticks upward

Sun news for March 28, 2026: AR4405 fires an M1.3 flare. A coronal hole stream arrives March 29, with G1 storm and aurora chances possible.
Sun

Russell-McPherron effect gives us an aurora season: More auroras at equinoxes

There's an aurora season around the equinoxes, due to the way the magnetic fields of the sun and the Earth work in conjunction with sun-Earth geometry.
Sun

Sun activity archive for February 2026

Sun activity archive for February 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for January 2026

Sun activity archive for January 2026. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for December 2025

Sun activity archive for December 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for November 2025

Sun activity archive for November 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for October 2025

Sun activity archive for October 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for September 2025

Sun activity archive for September 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for August 2025

Sun activity archive for August 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for July 2025

Sun activity archive for July 2025. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.

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