Solar Stormwatch

By Luke Barnard Coronal mass ejections (CMEs) are eruptions of coronal plasma and magnetic flux from the Sun’s corona, out into interplanetary space. CMEs are widely recognised as being a main driver of space weather and those CMEs that travel on a trajectory that intersects Earth’s orbit can be highly “geo-effective”, potentially generating geomagnetic storms … Continue reading “Solar Stormwatch”

Space weather – sunspot AR2192

By Simon Thomas Friday 24 October 2014 – updated 30 October 2014 Sunspots are areas on the Sun which appear dark in contrast to the solar disk. They are associated with complex magnetic fields which inhibit convection and are therefore not as hot as the surroundings (sunspots are typically 3000-4500 K compared to the surrounding … Continue reading “Space weather – sunspot AR2192”