✅Topic 10 - Solar Astronomy Flashcards
How to safely observe the sun
2 Points
Using H-Alpha Flter or Telescopic Projection
H-Alpha Filter
Transmits narrow bandwith of light allowing safe observation of the sun.
Sunspots
Magnetic loops preventing heat transfer to the surface
Proton-Proton Cycle
Protons fuse to form Helium-4 releasing energy
Layers of Sun (Temperatures)
Core: 15,000,000 Kelvin
Radiative Zone: 4,000,000 Kelvin
Convective Zone: 2,000,000 Kelvin
Photosphere: 5500 Kelvin
Chromosphere: 5000 Kelvin
Corona: 2,000,000 Kelvin
Corona emits…
X-Rays & UV Rays
Penumbra & Umbra
Penumbra: Outer Region of Sunspot
Umbra: Inner Region of Sunspot
Chromosphere emitts…
UV Rays, IR & Microwaves
Photosphere emitts…
Visible Light
Solar Wind
Flow of charged particles from the sun
How is the earth protected from solar wind?
By a region of the magnetic field called the magnetosphere
Van Allen Belts
Region of magnetosphere where charged particles are trapped