Page 35 - Ultimate Visual Dictionary (DK)

THE SUN

EXTERNAL FEATURES AND
INTERNAL STRUCTURE OF THE SUN Radiative zone 230,000
miles (380,000 km) thick
Convective zone 90,000
Chromosphere miles (140,000 km) thick Chromosphere
(inner atmosphere)
temperature
up to 6,000 miles 18,000°F (10,000°C) Photosphere
(2,000 km) thick temperature 9,900°F
Corona (5,500°C)
(outer atmosphere)
Corona temperature 3.6
million °F (2 million °C)
Photosphere
(visible surface)
Core temperature 27
million °F (15 million °C)

Supergranule
Filament (convection cell)
(prominence visible
against photosphere)

Granulated
Prominence surface
(jet of gas at edge of
Sun’s disk up to hundreds of
thousands of miles high) Macrospicule: vertical jet
of gas 25,000 miles
(40,000 km) high
Spicule: vertical jet of gas
6,000 miles (10,000 km) high
Gas loop
Sunspot Solar flare (looped prominence)
(cool region) (sudden release
of energy associated
with sunspots)

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