Astrology Calculations

This page provides an in-depth look at Ronald Isley's Nakshatra dashas, including Vimshottari, Mahadasha, Antardasha, and Pratyantardasha, revealing how these astrological cycles influence their life journey and personality according to Vedic astrology.

Index of Nakshatra Dashas

Calculation of nakshatra dashas
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Vimshottari Dasha

It is an universal dasha and applicable to all kundalis, but more suitable when birth time is in Krishna Paksha and Sun Hora

In this kundali, Birth time is in Krishna Paksha and Sun Hora.

Maha Dasha

S.No. Period Start End Duration
1 | 1 Sa Aug. 07, 1923 Aug. 07, 1942 19.0 Years
2 | 1 Me Aug. 07, 1942 Aug. 07, 1959 17.0 Years
3 | 1 Ke Aug. 07, 1959 Aug. 07, 1966 7.0 Years
4 | 1 Ve Aug. 07, 1966 Aug. 07, 1986 20.0 Years
5 | 1 Su Aug. 07, 1986 Aug. 06, 1992 6.0 Years
6 | 1 Mo Aug. 06, 1992 Aug. 06, 2002 10.0 Years
7 | 1 Ma Aug. 06, 2002 Aug. 06, 2009 7.0 Years
8 | 1 Ra Aug. 06, 2009 Aug. 07, 2027 18.0 Years
9 | 1 Ju Aug. 07, 2027 Aug. 06, 2043 16.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Shodashottari Dasha

Birth time should be in Krishna Paksha and Moon Hora or Shukla Paksha and Sun Hora

In this kundali, Birth time is in Krishna Paksha and Sun Hora.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ju Mar. 20, 1929 Mar. 20, 1942 13.0 Years
2.0 | 1 Sa Mar. 20, 1942 Mar. 19, 1956 14.0 Years
3.0 | 1 Ke Mar. 19, 1956 Mar. 20, 1971 15.0 Years
4.0 | 1 Mo Mar. 20, 1971 Mar. 20, 1987 16.0 Years
5.0 | 1 Me Mar. 20, 1987 Mar. 19, 2004 17.0 Years
6.0 | 1 Ve Mar. 19, 2004 Mar. 19, 2022 18.0 Years
7.0 | 1 Su Mar. 19, 2022 Mar. 19, 2033 11.0 Years
8.0 | 1 Ma Mar. 19, 2033 Mar. 19, 2045 12.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Dwadasottari Dasha

Birth ascendant navamsha lord should be Venus

In this kundali, Birth ascendant navamsha lord is in Ju.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ju Dec. 17, 1932 Dec. 17, 1941 9.0 Years
2.0 | 1 Ke Dec. 17, 1941 Dec. 16, 1952 11.0 Years
3.0 | 1 Me Dec. 16, 1952 Dec. 17, 1965 13.0 Years
4.0 | 1 Ra Dec. 17, 1965 Dec. 16, 1980 15.0 Years
5.0 | 1 Ma Dec. 16, 1980 Dec. 16, 1997 17.0 Years
6.0 | 1 Sa Dec. 16, 1997 Dec. 16, 2016 19.0 Years
7.0 | 1 Mo Dec. 16, 2016 Dec. 16, 2037 21.0 Years
8.0 | 1 Su Dec. 16, 2037 Dec. 16, 2044 7.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Ashtottari Dasha

Rahu should be located in either angle or trine except first house.

In this kundali, Rahu is located in H4.

Maha Dasha

S.No. Period Start End Duration
1 | 1 Ra Jul. 30, 1929 Jul. 30, 1941 12.0 Years
2 | 1 Ve Jul. 30, 1941 Jul. 30, 1962 21.0 Years
3 | 1 Su Jul. 30, 1962 Jul. 29, 1968 6.0 Years
4 | 1 Mo Jul. 29, 1968 Jul. 30, 1983 15.0 Years
5 | 1 Ma Jul. 30, 1983 Jul. 30, 1991 8.0 Years
6 | 1 Me Jul. 30, 1991 Jul. 29, 2008 17.0 Years
7 | 1 Sa Jul. 29, 2008 Jul. 29, 2018 10.0 Years
8 | 1 Ju Jul. 29, 2018 Jul. 29, 2037 19.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Panchottari Dasha

Birth ascendant should be cancer and it should be same for D1 and D12 charts.

In this kundali, Birth ascendant is Ge and same for D1 and D12 charts.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Sa Apr. 12, 1928 Apr. 12, 1942 14.0 Years
2.0 | 1 Ma Apr. 12, 1942 Apr. 12, 1957 15.0 Years
3.0 | 1 Ve Apr. 12, 1957 Apr. 12, 1973 16.0 Years
4.0 | 1 Mo Apr. 12, 1973 Apr. 12, 1990 17.0 Years
5.0 | 1 Ju Apr. 12, 1990 Apr. 11, 2008 18.0 Years
6.0 | 1 Su Apr. 11, 2008 Apr. 11, 2020 12.0 Years
7.0 | 1 Me Apr. 11, 2020 Apr. 11, 2033 13.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Shatabdika Dasha

Birth ascendant should be vargottam.

In this kundali, Birth ascendant (Ge) is vargottam.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ma Aug. 30, 1922 Aug. 30, 1942 20.0 Years
2.0 | 1 Sa Aug. 30, 1942 Aug. 30, 1972 30.0 Years
3.0 | 1 Su Aug. 30, 1972 Aug. 30, 1977 5.0 Years
4.0 | 1 Mo Aug. 30, 1977 Aug. 30, 1982 5.0 Years
5.0 | 1 Ve Aug. 30, 1982 Aug. 29, 1992 10.0 Years
6.0 | 1 Me Aug. 29, 1992 Aug. 30, 2002 10.0 Years
7.0 | 1 Ju Aug. 30, 2002 Aug. 30, 2022 20.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Chaturshiti Sama Dasha

H10 lord should be in H10.

In this kundali, H10 lord (Ju) is located in H10.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ju Feb. 25, 1930 Feb. 25, 1942 12.0 Years
2.0 | 1 Ve Feb. 25, 1942 Feb. 25, 1954 12.0 Years
3.0 | 1 Sa Feb. 25, 1954 Feb. 25, 1966 12.0 Years
4.0 | 1 Su Feb. 25, 1966 Feb. 24, 1978 12.0 Years
5.0 | 1 Mo Feb. 24, 1978 Feb. 24, 1990 12.0 Years
6.0 | 1 Ma Feb. 24, 1990 Feb. 24, 2002 12.0 Years
7.0 | 1 Me Feb. 24, 2002 Feb. 24, 2014 12.0 Years
8.0 | 2 Ju Feb. 24, 2014 Feb. 24, 2026 12.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Dwisaptati Sama Dasha

H1 lord should be in H7 or H7 lord should be in H1.

In this kundali, H7 lord (Ju) is located in H1, H7 lord (Ju) is located in H1.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ra Dec. 17, 1932 Dec. 17, 1941 9.0 Years
2.0 | 1 Su Dec. 17, 1941 Dec. 17, 1950 9.0 Years
3.0 | 1 Mo Dec. 17, 1950 Dec. 17, 1959 9.0 Years
4.0 | 1 Ma Dec. 17, 1959 Dec. 16, 1968 9.0 Years
5.0 | 1 Me Dec. 16, 1968 Dec. 16, 1977 9.0 Years
6.0 | 1 Ju Dec. 16, 1977 Dec. 17, 1986 9.0 Years
7.0 | 1 Ve Dec. 17, 1986 Dec. 17, 1995 9.0 Years
8.0 | 1 Sa Dec. 17, 1995 Dec. 16, 2004 9.0 Years
9.0 | 2 Ra Dec. 16, 2004 Dec. 16, 2013 9.0 Years
10.0 | 2 Su Dec. 16, 2013 Dec. 16, 2022 9.0 Years
11.0 | 2 Mo Dec. 16, 2022 Dec. 17, 2031 9.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Shashtihayani Dasha

Sun should be located in first house (H1).

In this kundali, Sun is not located in first house (H1).

Maha Dasha

S.No. Period Start End Duration
1 | 1 Ra Jul. 30, 1938 Jul. 30, 1944 6.0 Years
2 | 1 Ju Jul. 30, 1944 Jul. 30, 1954 10.0 Years
3 | 1 Su Jul. 30, 1954 Jul. 29, 1964 10.0 Years
4 | 1 Ma Jul. 29, 1964 Jul. 30, 1974 10.0 Years
5 | 1 Mo Jul. 30, 1974 Jul. 29, 1980 6.0 Years
6 | 1 Me Jul. 29, 1980 Jul. 30, 1986 6.0 Years
7 | 1 Ve Jul. 30, 1986 Jul. 29, 1992 6.0 Years
8 | 1 Sa Jul. 29, 1992 Jul. 30, 1998 6.0 Years
9 | 2 Ra Jul. 30, 1998 Jul. 29, 2004 6.0 Years
10 | 2 Ju Jul. 29, 2004 Jul. 29, 2014 10.0 Years
11 | 2 Su Jul. 29, 2014 Jul. 29, 2024 10.0 Years
12 | 2 Ma Jul. 29, 2024 Jul. 29, 2034 10.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration

Shattrimshat Sama Dasha

Birth time should be in Moon Hora and fall under the category of Nigth Birth or in Sun Hora and fall under the category of Day Birth.

In this kundali, Birth time is in Sun Hora and fall under category of Day Birth.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Me Sep. 14, 1936 Sep. 14, 1941 5.0 Years
2.0 | 1 Sa Sep. 14, 1941 Sep. 15, 1947 6.0 Years
3.0 | 1 Ve Sep. 15, 1947 Sep. 15, 1954 7.0 Years
4.0 | 1 Ra Sep. 15, 1954 Sep. 15, 1962 8.0 Years
5.0 | 1 Mo Sep. 15, 1962 Sep. 15, 1963 1.0 Years
6.0 | 1 Su Sep. 15, 1963 Sep. 14, 1965 2.0 Years
7.0 | 1 Ju Sep. 14, 1965 Sep. 14, 1968 3.0 Years
8.0 | 1 Ma Sep. 14, 1968 Sep. 14, 1972 4.0 Years
9.0 | 2 Me Sep. 14, 1972 Sep. 14, 1977 5.0 Years
10.0 | 2 Sa Sep. 14, 1977 Sep. 15, 1983 6.0 Years
11.0 | 2 Ve Sep. 15, 1983 Sep. 14, 1990 7.0 Years
12.0 | 2 Ra Sep. 14, 1990 Sep. 14, 1998 8.0 Years
13.0 | 2 Mo Sep. 14, 1998 Sep. 15, 1999 1.0 Years
14.0 | 2 Su Sep. 15, 1999 Sep. 14, 2001 2.0 Years
15.0 | 2 Ju Sep. 14, 2001 Sep. 14, 2004 3.0 Years
16.0 | 2 Ma Sep. 14, 2004 Sep. 14, 2008 4.0 Years
17.0 | 3 Me Sep. 14, 2008 Sep. 14, 2013 5.0 Years
18.0 | 3 Sa Sep. 14, 2013 Sep. 14, 2019 6.0 Years
19.0 | 3 Ve Sep. 14, 2019 Sep. 14, 2026 7.0 Years
20.0 | 3 Ra Sep. 14, 2026 Sep. 14, 2034 8.0 Years
21.0 | 3 Mo Sep. 14, 2034 Sep. 14, 2035 1.0 Years

Antar Dasha

S.No. Period Start End Duration

Pratyantar Dasha

S.No. Period Start End Duration

Sookshmantar Dasha

S.No. Period Start End Duration
Astrology Calculations