![]() The Photospheric Composition of the Sun (by mass) is: Mentioning The Photospheric Composition of the Sun: The age of the Sun is 4.6 billion years (4.6 x 10^9 years). The Sun’s temperature in the Center is almost 1.57 x 10^7 K, Photosphere is almost 5,772 K and Corona is approximately 5 x 10^6 K The equatorial surface gravity of the Sun is 274 m/s2 or 28 times the earth’s equatorial surface gravity. The center density of the Sun is 162.2 g/cm3 or 12.4 times the Earth’s center density. The average density of the Sun is 1.408 g/cm3 or 0.255 times the Earth’s average density. The mass of the Sun is 1.9885 x 10^30 kg or 332,950 times of the Earth’s mass. The volume of the Sun is 6.09 x 10^12 km or 1,300,000 times of the earth’s volume. The surface area of the Sun is around 6.09 x 10^12 km or 12,000 times of the Earth’s surface area. ![]() The flattening surface area of the Sun is around 9 x 10^-6 The equatorial circumference of the Sun is measured as 4.379 x 10^6 km or 109 times of the Earth’s equatorial circumference. The equatorial radius of the Sun is measured as 695,700 km, 696,342 km, or 109 times the Earth’s equatorial radius. The angular size of the Sun is measured as 31.6 – 32.7 minutes of arc or 0.527 – 0.545 degrees.įollowing mentioned are the physical characteristics of the Sun: The metallicity angular size of the Sun (z) is 0.0122 G2V is the spectral classification (G) of the Sun. The visual brightness (V) of the Sun is around -26.74 When measuring in terms of light speed, the mean distance is 8 min 19 sec The mean distance of the Sun from the Earth is 1 au (approximately 1.496 x 10^8 km). When discussing the Characteristics of the Sun, these are mainly classified into two categories: Orbital Characteristics:įollowing mentioned are the orbital characteristics of the Sun: Now that the layer has low density it is impossible to observe it without narrowband filters.Ĭorona: It is recorded as the biggest structure of the Sun and has a very low density. Photosphere: It is the deepest part of the Sun and can be directly observed with visible light.Ĭhromosphere: It is the layer present above the photosphere and is much thicker compared to the same. This becomes the primary means of transferring heat outwards. This is how it travels from the Sun’s center to its outer regions and is hence named “radiative zone”.Ĭonvective Zone: It is between 70% of the radius of the Sun and a point nearby to the visible surface, where the Sun is cool and thus, enough is diffused for the convection to take place. Radiative Zone: It is the transferring of radiation that allows the transport of energy from the core of the Sun to the regions surrounding it. It is in the core of the Sun, where nuclear reactions take place. The core has a very high temperature and due to high pressure, the material it is composed of is very dense. When it comes to the structure of the Sun, it contains the following mentioned layers:Ĭore: It is the innermost 20% to 25% radius of the Sun and acts as the source of all its energy. When it comes to its size, the diameter of the Sun is about 109 times of the Earth or 139 million kilometers. It is by far the most important source that radiates energy, mainly ultraviolet light, visible light and infrared radiation on the Earth. ![]() The Sun is about 70% hydrogen, 28% helium, and everything else amounts to less than 2%. It is the largest ball of hot plasma in the solar system that contains more than 99.8% of the total solar system’s mass. The Sun is a star that is located at the center of the solar system and all planets revolve around this star.
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