Explanation
Satrun only has ring around it.
As we move towards the centre of the sun, the density and pressure increases.
Length of milkway is 105 light years.
Mercury is the nearest planet to sun.
Meteors are burnt pieces of comet. When they reach earth’s atmosphere, they start burn due to friction.
The star which appears red is at less temperature, than the star which appears white. Therefore, temperature of Q is higher than that of P.
The albedo (reflection power) is maximum for Venus, because it reflects 85% of incident light. It’s value of albedo is 0.85
It is well known that if the mass of the star is more than that of mass of Sun, it explodes after it’s red giant stage and dies out giving rise to supernova and a black hole.
If a comet approaches the sun, the substances like water etc. on the comet, get vaporised due to the heat of Sun, and radiation pressure forces of these vapours move away from the Sun. Hence, it forms the tail of the comet.
The motion of planets in the solar system is based on the conservation of angular momentum.
Great bear is a constellation, which is a group of some stars.
Surface temperature of Sun is about 6000 K.
Because pluto is farthest from Sun.
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