Raushan Kumar Raman

If one looks at the sky on the clear,moonless night,the brightest objects one sees are likely to be the planets venus,Mars,jupiter and saturn.There will also a very large numbers of stars,which are just like our own sun but much farther from us.some of fixed stars do in fact,appear to change very slightly their positions relative to each other as the earth orbits around the sun ; they are not relatively fixed at all ! This is because they are comparatively near to us.