X-ray image of the Sun showing a pre-CME sigmoid (left inset) evolving into a post-CME arc (right inset). The main image shows the sun in X-rays, highlighting regions where solar explosions originate, specifically S-shaped regions where magnetic fields interact. The images illustrate the process of a Coronal Mass Ejection (CME).

Astronomy Picture from 16/03/1999

Sigmoids Predict Solar Eruptions

Source: https://apod.nasa.gov/apod/ap990316.html


#SolarExplosion #CME #Sigmoid #SpaceWeather #SolarPhysics #Sunspots #XraySun #Astrophysics #Astronomy

False-color X-ray image of the Sun, taken by the Yohkoh solar observatory. The image shows the sun's corona in brilliant red, highlighting active regions of millions of degrees Celsius, contrasting with the darker photosphere. Captured shortly before the Winter Solstice in the Northern Hemisphere.

Astronomy Picture from 21/12/1998

Solstice Sun In Soft X-rays

Source: https://apod.nasa.gov/apod/ap981221.html


#WinterSolstice #Sun #SolarCorona #SpaceWeather #Yohkoh #XraySun #Astronomy #SpaceScience #MillionsOfDegrees #SolarObservatory