How can we see planets

1. Mercury, Venus, Mars, Jupiter and Saturn can be observed from earth with naked eyes.It is a bit hard to differentiate between the planets and stars.For this we take you back to your Kinder Garden...Recall the poem-"Twinkle twinkle little star".We are all familiar with this poem.This is a perfect solution that can help us differentiate between a planet and a star.
2. Whenever you find any celestial body twinkling,it's a star.Those which do not twinkle are planets.
3. This can be defined by the concept of Refraction.The difference in the refractive indices makes it all happen.
4.