A binary star has a time period `3` yeas (time period of earth is one year) while distance between the earth and the sun. Mass of one star is equal to mass of the sun and mass of other is `20n` times mass of the sun then calculate `n`.

A binary star has a time period 3 years (time period of earth is one year) while distance between the two stars is 9 times distance between earth and the sun. Mass of one star is equal to mass of the sun and mass of other is 20n times mass of the sun then calculate n .

The distance of a planet from the sun is 5 times the distance between the earth and the sun. The time period of the planet is

A trinary star system which is a system of three orbiting around centre of mass of system has time peroid of 3 years, while the distance between any two stars of the system is 2 astronomical unit. All the three stars are identical and mass of the sun is M and total mass of this multiple star system is (a)/(b)xxM . Then find (b)/(3) ? (a and b are lowest possible integers (I astronomical unit is equal to distance between sun and earth, time period of rotation of earth around sun is 1year)

A trinary star system which is a system of three orbiting around centre of mass of system has time peroid of 3 years, while the distance between any two stars of the system is 2 astronomical unit. All the three stars are identical and mass of the sun is M and total mass of this multiple star system is (a)/(b)xxM . Then find (b)/(3) ? (a and b are lowest possible integers (I astronomical unit is equal to distance between sun and earth, time period of rotation of earth around sun is 1year)

A trinary star system which is a system of three orbiting around centre of mass of system has time peroid of 3 years, while the distance between any two stars of the system is 2 astronomical unit. All the three stars are identical and mass of the sun is M and total mass of this multiple star system is (a)/(b)xxM . Then find (b)/(3) ? (a and b are lowest possible integers (I astronomical unit is equal to distance between sun and earth, time period of rotation of earth around sun is 1year)

Answer the following : Explain end stages of stars having mass larger than 25 times mass of the sun .