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fuckyeahtattoos:

Tattoo by Jason Brown

The Blue Rose Tattoo

Huntsville, AL

Email- jason@thebluerosetattoo.com

Instagram- @jasoncbrown

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spaceplasma: Sunspots Our Sun is a main sequence star which...

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Hinode's high-resolution view of the Sun


Visualization from SOHO/MDI data of sunspot substructure.

spaceplasma:

Sunspots

Our Sun is a main sequence star which actively fuses hydrogen into helium in its core. In certain regions of the Sun, the energy created by the hydrogen “burning” is carried to its surface by convection. However, intense magnetic fields in sunspots strangle the normal up-flow of energy from the interior, so energy is unable to reach the surface in these areas leaving the sunspot cooler and therefore darker than its surroundings. The strong magnetic fields in these convection zones promote cooling, thus the hot gas near the Sun’s surface contracts and sinks at speeds of up to 4,000 kilometers per hour. This drives an inward flow, like a planet-sized whirlpool. Of course, seeing behind the scenes in sunspots is not easy; the Sun below the photosphere is opaque and hidden. The only way to investigate the morphology and the structure of sunspots is through helioseismology. Usingthe Helioseismic and Magnetic Imager (HMI) on SDO, we can explore the solar interior by detecting natural sound waves on the Sun’s surface.

For more information:

Image Credit: NASA/SOHO/MDI/Alexander Kosovichev/Tom Bridgman

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