Effect of Positions of Planet in a Birth chart
Planets occupying Angular houses (1st, 4th, 7th, and 10th) bring the person into public recognition, fame, power and eminence. Planets occupying Triangular and Succedents houses (Houses that succeed the angular house) are also good, but are less powerful than the former, as they take longer time to give good results, though they give the more permanent nature to all affairs governed by them. Planets occupying Cadent houses keep the man in darkness and insignificance and deprive him of the opportunities of life. Of the Succedents the 2nd and 11th are stronger than the 5th and 8th, of the Cadets, the 3rd, 12th, and 9th are stronger than the 6th. Hence the 6th house is the weakest.
1st, 4th, 7th, 10th- Angular house
1st, 5th, 9th- Triangles house
2nd, 5th, 8th, 11th- Succedents house
3rd, 6th, 9th, 12th- Cadents house