There exist billions of stars in the sky. Among them, the Sun is the closest to the earth. The sun lies in the middle of the solar system. It makes one rotation every 27 days. Formed about 4.5 billion years ago, it is assumed to be in its midlife. It is expected to continue shining for about five billion more years.
The surface of the sun is called photosphere. The temperature of the photosphere is 5,778 K. It is, be that as it may, much more sweltering at the center of the sun, being 15.7 million K. The vitality is delivered by means of a procedure known as atomic combination. This includes 2 hydrogen cores joining to frame 1 helium core, discharging vitality.
The sun is 149.6 million kilometers from the earth. Its diameter is 1.392 million kilometers, which reflects an equatorial circumference of 4.379 million kilometers. Compared to the corresponding measurements of the earth, these are 109 times more. The surface area of the sun is 6.0887 trillion kilometer square, about 11,990 times the earth. Its volume exceeds that of earth by 1.3 million.
Energy from the sun, known as solar energy, reaches the earth via radiation. The sun can only absorb a small fraction of solar energy; hence plenty of the radiated energy is reverberated back to space. Life on earth is dependent of the absorbed energy. More of its effects include tides, weather patterns and the earth's water cycle.
Plants make their own food through photosynthesis, a process that is dependent on solar energy. Take note that all living organisms get their food directly or indirectly from plants. In addition, the sun is the cause of energy available in fossils. Examples of such energy sources are petroleum and coal.
The sun is earth's basic source of energy. This energy reaches us in two main forms, light and heat. Solar energy is also applied in promoting plant growth in green houses, solar lighting and powering electronic devices. There cannot be life on earth without the sun.
The surface of the sun is called photosphere. The temperature of the photosphere is 5,778 K. It is, be that as it may, much more sweltering at the center of the sun, being 15.7 million K. The vitality is delivered by means of a procedure known as atomic combination. This includes 2 hydrogen cores joining to frame 1 helium core, discharging vitality.
The sun is 149.6 million kilometers from the earth. Its diameter is 1.392 million kilometers, which reflects an equatorial circumference of 4.379 million kilometers. Compared to the corresponding measurements of the earth, these are 109 times more. The surface area of the sun is 6.0887 trillion kilometer square, about 11,990 times the earth. Its volume exceeds that of earth by 1.3 million.
Energy from the sun, known as solar energy, reaches the earth via radiation. The sun can only absorb a small fraction of solar energy; hence plenty of the radiated energy is reverberated back to space. Life on earth is dependent of the absorbed energy. More of its effects include tides, weather patterns and the earth's water cycle.
Plants make their own food through photosynthesis, a process that is dependent on solar energy. Take note that all living organisms get their food directly or indirectly from plants. In addition, the sun is the cause of energy available in fossils. Examples of such energy sources are petroleum and coal.
The sun is earth's basic source of energy. This energy reaches us in two main forms, light and heat. Solar energy is also applied in promoting plant growth in green houses, solar lighting and powering electronic devices. There cannot be life on earth without the sun.
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