The sun radiates energy in all directions. The average radiations received on the earth surface from the sun is `1.4 "kilowatt"//m^2`. The average earth-sun distance is `1.5 xx 10^11` meters. The mass lost by the sun per day is.

Express the average distance of the earth from the sun in parsec.

The average distance between the Earth and the Sun is called an------

The average distance between the earth and the sun is called

The mean distance of sun from the earth is 1.5xx10^8km . The time taken by light to reach earth from the sun is

(a) Estimate the average orbital speed of the earth going around the sun. The average Earth-sun distance is 1.5xx10^(11)m. (b) An asteroid going around the sun has an average orbital speed of 15 km/s. Is the asteroid farther from the sun or closer to the sun as compared to the Earth? Explain your answer.

The angular diameter of the sun is 1920". If the distance of the sun from the earth is 1.5xx10^(11) m, what is the linear diameter of the sun ?

The angular diameter of the sun is 1920". If the distance of the sun from the earth is 1.5xx10^(11) m, what is the linear diameter of the sun ?

The surface temperature of the sun is T_(0) and it is at average distance d from a planet. The radius of the sun is R . The temperature at which planet radiates the energy is