Artist’s impression of star plagued by giant magnetic spot

Astronomers using ESO telescopes have discovered giant spots on the surface of extremely hot stars hidden in stellar clusters, called extreme horizontal branch stars. This image shows an artist’s impression of what one of these stars, and its giant whitish spot, might look like. The spot is bright, takes up a quarter of the star’s surface and is caused by magnetic fields. As the star rotates, the spot on its surface comes and goes, causing visible changes in brightness.

Mynd/Myndskeið:

ESO/L. Calçada, INAF-Padua/S. Zaggia

Um myndina

Auðkenni:eso2009a
Tegund:Uppdráttur
Útgáfudagur:Jún 1, 2020, 17:00 CEST
Tengdar fréttatilkynningar:eso2009
Stærð:5000 x 3000 px

Um fyrirbærið

Tegund:Unspecified : Star : Grouping : Cluster
Flokkur:Stars

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