Posts by 

Raúl Cortés

Sun

Sun news September 27: New sunspot region fires every flare

Sun news for September 27, 2024. A newcomer active region in the southeast was the only flare producer of the day, firing 2 M flares to keep sun activity at moderate.
Sun

Sun activity archive for September 2024

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

Sun activity archive for August 2024

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

Sun activity archive for July 2024

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

Sun activity archive for June 2024

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

Sun activity archive for May 2024

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

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

Sun activity archive for April 2024

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