Posts by 

Raúl Cortés

Sun

Sun news May 16, 2024: More auroras and exciting new sunspot

Sun news for May 16, 2024. A geomagnetic storm due to a CME glancing blow is underway. More auroras tonight? Plus, a new active region released an X3 flare.

Get a sneak preview of Baily’s beads on the waning moon

Look at these photos for a sneak peak of Baily's Beads, which will be visible during the total solar eclipse on April 8.
Sun

It’s aurora season. Why more auroras at equinoxes?

An aurora season occurs in March and October each year, 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 March 2024

Sun activity archive for March 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for February 2024

Sun activity archive for February 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for January 2024

Sun activity archive for January 2024. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for December 2023

Sun activity archive for December 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for November 2023

Sun activity archive for November 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for October 2023

Sun activity archive for October 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.
Sun

Sun activity archive for September 2023

Sun activity archive for September 2023. A daily record of flaring, big filaments and prominences, and other sorts of activity, on our local star.