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The Sun in STEREOK. Murawski www.kmur.pl

Department of Astrophysics, UMCS

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InInside side the Sunthe Sun

• The Core– nuclear fusion

• Radiative Zone– ubiquity of photons

• Convective Zone:– hot plasma rises

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Temperature on the Sun

As The Sun TurnsAs The Sun Turns

A A ddifferentifferential rotationial rotation

Rotation Inside The SunRotation Inside The Sun

The Sun’s Magnetic PersonalityThe Sun’s Magnetic Personality

Magnetic Fields And SunspotsMagnetic Fields And Sunspots

Flash In The SunFlash In The Sun

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Magnetic LoopsMagnetic Loops

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The Stormy The Stormy SunSun

Launched on October 25, 2006

STEREO in space

Solar EclipseSolar Eclipse

The Sun in ultraviolet light shows prominences, sliding plasma and tiny spikes darting up just above the Sun’ssurface, seen best along its edge

The erupting prominence seen in UV light

The Sun in just one wavelength of UV light

A 3D composite of the Sun in UV light: the brighter areas are active regions; darker areas are coronal holes

The Sun in one wavelength of UV light:the brighter loops above an active region

D:\DATA\Talks\3D Sun\174597main_Active171.mov

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Solar magnetic fieldSolar magnetic field

A 3D composite of the Sun in UV light:the brighter areas are active regions: darker

areas are coronal holes

A 3D composite of the Sun in UV light:the active region with curved magnetic field lines

The Sun in one wavelength of UV light:the eruptive prominence on the upper right

The Sun in one wavelength of UV light:the bright loops above an active region.

• Consists of different layers (onion-like structure)– hot core – nuclear fusion– radiative zone – many photons– convective zone - hot plasma rising– atmosphere (photosphere, chromosphere,

corona)• The Sun’s peculiar rotation• Magnetic seasons of the Sun

The SunThe Sun is mistic is mistic