Stirling Astronomical Society Gallery

Equinox Sunspots

21 Sep 2025

Equinox sunspots

Several groups of complex sunspots

© Alan Cayless all rights reserved.

Close to the autumnal equinox, the September Sun is crossed by two lines of sunspots, many of which have quite complex structures. This is a sign of continuing solar activity.

Previous image: Horsehead and Flame Nebulae Return to main Gallery Next image: Aurora in Alberta

All images on this website are © Stirling Astronomical Society and/or the individual contributors as specified.