✅Topic 10 - Solar Astronomy

Question 1

How to safely observe the sun

2 Points

Answer 1

Using H-Alpha Flter or Telescopic Projection

Question 2

H-Alpha Filter

Answer 2

Transmits narrow bandwith of light allowing safe observation of the sun.

Question 3

Sunspots

Answer 3

Magnetic loops preventing heat transfer to the surface

Question 3

Proton-Proton Cycle

Answer 3

Protons fuse to form Helium-4 releasing energy

Question 4

Layers of Sun (Temperatures)

Answer 4

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

Question 4

Corona emits…

Answer 4

X-Rays & UV Rays

Question 4

Penumbra & Umbra

Answer 4

Penumbra: Outer Region of Sunspot
Umbra: Inner Region of Sunspot

Question 5

Chromosphere emitts…

Answer 5

UV Rays, IR & Microwaves

Question 6

Photosphere emitts…

Answer 6

Visible Light

Question 7

Solar Wind

Answer 7

Flow of charged particles from the sun

Question 8

How is the earth protected from solar wind?

Answer 8

By a region of the magnetic field called the magnetosphere

Question 9

Van Allen Belts

Answer 9

Region of magnetosphere where charged particles are trapped