Stellar Astrology (Nadi Astrology) is a predictive system of astrology which gives importance to houses, constellation & sub lord signified by a planet depending upon its degree in the astrological chart. In this system, a planet gives results not on the basis of its natural significations or the houses it owns but on the combination of houses signified by the planet, its constellation lord & the sub lord. A single house is not capable of giving any result & it is very difficult to assess results of a planet without looking at its constellation lord & sub lord. For eg: Second house signifies a number of things but we cannot pinpoint anything unless we see the other houses that the planet is signified through itself, star lord or sub lord. If the planet is also signifying the eleventh house, then either it can mean "Gain/Addition of a member in the family" or "Gain of money & assets" - those who follow astrology knows the second house
On observing this sky from the Earth, we see billions of stars. A group of stars when forms a recognizable pattern, we call it a constellation. There could be uncountable number of constellations in the skies depending upon from where we see it. We see them from the Earth and the astronomers have discovered 88 constellations till now. In astrology, we only use 27 constellations and they form the entire zodiac belt. There are 12 zodiac sign in this zodiac belt and each zodiac sign has a width of 30 degrees. Each zodiac sign is owned by a certain planet and a planet can be present either in its own zodiac sign or in some other zodiac sign. The zodiac sign which a planet occupies depends upon the point of reference, the Earth. Earth is moving around the Sun along with other planets, therefore, the speeds of movement of other planets appear to be changing all the time. This happens due to the relative motion of Earth and the other planet. If we change our point of reference from Ea