STRUCTURE OF THE SUN 🌞
1.The Sun's atmosphere consists of three parts.
(a) The corona forms a circle of bluish-white light at the outermost layer.
(b) The chromosphere forms a bright red layer of gas below the corona.
(c) The photosphere forms a compact layer of gas seen to be shining with yellow light from the Earth.
2. The Sun's core consists of hydrogen and helium gases. A nuclear reaction occurs in the core to generate and release heat and light energy. During this reaction, hydrogen atoms fuse (nuclear fusion) to form helium atoms.
3. The convection zone consists of huge convection currents and large bubbles of hot plasma move up towards the surface of the Sun.
4. The radiation zone is the layer which is located above the Sun's core. Energy is carried outwards by radiation.
SUN'S PHENOMENA 🌞
1. Prominences, solar flares and sunspots that occur in the Sun's atmosphere radiate charged particles and electromagnetic rays such as ultraviolet rays, X-rays, gamma rays and cosmic rays. Solar wind that is formed affect weather and communications on the Earth.
2. The coronal mass ejection is the eruption of the magnetic particles out into the outer space at a high speed and appears to be a cloud that expands.
EARTH'S MAGNETOSPHERE 🌏
1. The Earth's magnetosphere is the region of the space surrounding Earth resulting from the interaction of the solar wind with the Earth's magnetic field.
2. The magnetosphere protects the life on the Earth from the dangerous particles from the Sun or other bodies in the Universe.
THE SPACE WEATHER
1. The space weather is phenomena that occur:
(a) on the surface of the Sun like solar flares, prominences, sunspots and coronal mass ejection.
(b) in outer space such as solar wind, solar radiation and geomagnetic storm.
2. The space weather affects the living things, health, disturb the telecommunication and the navigation system (GPS).
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