Jataka Parijatha says the number of strong planets that oocupy the third house or associate with or project aspects to the owner of the house its karaka or the house would be the number of siblings. This is the basic method which gives good results and can also be used to determine the number of children and other relatives too.
There are other methods too to determine the number of siblings. Vaidyanath in Jathakaparijatha says that the number of planets in the eleventh and twelth house would be the number of elder siblings and the number of planets in the second and third houses say about the number of younger siblings.
According to Bhava Chandrika , strongest of Mars and the owner of the occupant of the third house has to be determined and the number of dwadasamsas it has traversed in the sign it occupies would indicate about the number of siblings of the individual.
According to Satya Jatakam, Cusp of the third house has to be determined first and see the number of Navamsas the cusp has crossed.The number of Navamsas would be the number of siblings.
There are other methods too to determine the number of siblings. Vaidyanath in Jathakaparijatha says that the number of planets in the eleventh and twelth house would be the number of elder siblings and the number of planets in the second and third houses say about the number of younger siblings.
According to Bhava Chandrika , strongest of Mars and the owner of the occupant of the third house has to be determined and the number of dwadasamsas it has traversed in the sign it occupies would indicate about the number of siblings of the individual.
According to Satya Jatakam, Cusp of the third house has to be determined first and see the number of Navamsas the cusp has crossed.The number of Navamsas would be the number of siblings.