Vaastu Shastra

The last two were discovered by the famous astrologer Varaha Mihir , but they are not
real planets but imaginary ones.
The orbit of Earth and Moon cross at points and these points are called Rahu & Ketu .
Thereafter , Herschel ( Prajapati ) , Neptune ( Varun ) and Pluto were taken into
consideration by Western astrologers and Indian astrologers and began to use them
skillfully for predictive purpose.