What is distance between two stars

The force of gravity between two stars is N Newtons. If the distance between the stars could be quartered, the mass of star 1 be doubled and the mass of star 2 be tripled, what would happen to the force of gravity between them?
Suppose that two stars in a binary star system are separated by a distance of 50 million kilometers and are located at a distance of 120 light-years from Earth. What is the angular separation of the two stars? Give your answer in degrees. What is the angular separation of the two stars? Give your answer in arcseconds. Express your answer using two significant figures.
Two equal-mass stars maintain a constant distance apart of 7.3×1011 mm and rotate about a point midway between them at a rate of one revolution every 13.0 yr. 1) Why don't the two stars crash into one another due to the gravitational force between them? 2) What must be the mass of each star?
Two equal-mass stars maintain a constant distance apart of 1.7×1011 m and rotate about a point midway between them at a rate of one revolution every 21.6 yr . A) Why don't the two stars crash into one another due to the gravitational force between them? B) What must be the mass of each star? (Express your answer using two significant figures.)
6) Suppose that two stars in a binary system are separated by a distance of 1 billion kilometers and are located at a distance of 2000 light-years from Earth. Would a space based telescope with a diameter of 10-meters be able to resolve the two stars at a wavelength of 6000 Angstroms?
In the binary system of two neutron stars discovered by Hulse & Taylor, one of the neutron stars is a pulsar. The distance between them varies from 1.1R⊙ and 4.8R⊙. The time interval between pulses is not constant: It is greatest when the two stars are closer to each other and least when they are farthest apart. Assuming that the distance between the neutron stars decreases by 3mm after every orbit, how long will it take for the neutron stars...
Two equal-mass stars maintain a constant distance apart of 1.1×1011 m and rotate about a point midway between them at a rate of one revolution every 16.6 yr . PART A: Why don't the two stars crash into one another due to the gravitational force between them? PART B:What must be the mass of each star?
4. Two stars are imaged by the same telescope/CCD system. If both stars are known to be at the same distance from the Earth and the measured flux arriving at Earth from star B is 10x that from star A... A)What is the magnitude difference between these two stars? (ie., we want Am- m-m) B)Letting LJ be the luminosity of star A and Lg be that of star B, whet is the ratio of their luminosities: .A
Two stars z and p, are exactly in the opposite directions from the Earth. The distance to 'z' from earth is 80 light-years. The distance to 'p' is 90 light-years. Zerah takes off in the direction of z, at a speed of 0.8 c, while Perez takes off in the direction of p at the speed 0.9c. (distance between two stars in earth frame = 170c*y) (time to each star in earth frame = 100 years, simultaneous events in earth's...
The average distance between two neighboring stars in our galaxy is about 5 light-years. (a) How many years would it take the Voyager 1 Space Probe to travel 5 light-years? (b) If an alien civilization built a spaceship that can travel 5 light-years in 1000 years. How many kilometers does this spaceship travel in 1 second? (hint: Google “how far is 1 light-year”)