Sun Flashcards
What is the structure of the Sun’s layers?
Core Radiative zone Convective zone Photosphere Chromosphere Corona
How does the Sun shine?
Nuclear Fusion
Core
The Sun’s core is extremely dense and is the source of all of its energy. Inside the core, nuclear energy is being released
Radiation Zone
Calmer region where energy is transported by photons
Extends 2/3 of the Sun’s volume above core
Intense X-ray emission
Photosphere
is the layer where the Sun becomes opaque and marks the boundary past which we cannot see
granulation structure
Chromosphere
The region of the Sun’s atmosphere that lies immediately above the photosphere
Convection Zone
Turbulent region where energy is transported through rising and falling of gas
Corona
The outermost part of the Sun’s atmosphere
What is the sun made of?
Ball of ionized gas = plasma
73% Hydrogen, 25% Helium, 2% Metals (C,N,O)
Hydrostatic equilibrium
Gravitate pushing in Sun, And the pressure pushing out is equal. Making it stable (+) + (-) =0
why is the sun stable source of light?
Hydrostatic equilibrium
Nuclear Fusion
Small nuclei stick together to make a bigger one.