Astrology Calculations

This page provides an in-depth look at Robert Irwin'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 Moon Hora.

Maha Dasha

S.No. Period Start End Duration
1 | 1 Ve Jun. 21, 1922 Jun. 21, 1942 20.0 Years
2 | 1 Su Jun. 21, 1942 Jun. 20, 1948 6.0 Years
3 | 1 Mo Jun. 20, 1948 Jun. 21, 1958 10.0 Years
4 | 1 Ma Jun. 21, 1958 Jun. 20, 1965 7.0 Years
5 | 1 Ra Jun. 20, 1965 Jun. 21, 1983 18.0 Years
6 | 1 Ju Jun. 21, 1983 Jun. 21, 1999 16.0 Years
7 | 1 Sa Jun. 21, 1999 Jun. 20, 2018 19.0 Years
8 | 1 Me Jun. 20, 2018 Jun. 20, 2035 17.0 Years
9 | 1 Ke Jun. 20, 2035 Jun. 20, 2042 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

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 Moon Hora.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Sa May. 04, 1924 May. 04, 1938 14.0 Years
2.0 | 1 Ke May. 04, 1938 May. 04, 1953 15.0 Years
3.0 | 1 Mo May. 04, 1953 May. 04, 1969 16.0 Years
4.0 | 1 Me May. 04, 1969 May. 04, 1986 17.0 Years
5.0 | 1 Ve May. 04, 1986 May. 03, 2004 18.0 Years
6.0 | 1 Su May. 03, 2004 May. 04, 2015 11.0 Years
7.0 | 1 Ma May. 04, 2015 May. 04, 2027 12.0 Years
8.0 | 1 Ju May. 04, 2027 May. 03, 2040 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

Dwadasottari Dasha

Birth ascendant navamsha lord should be Venus

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

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Su Jul. 09, 1926 Jul. 09, 1933 7.0 Years
2.0 | 1 Ju Jul. 09, 1933 Jul. 09, 1942 9.0 Years
3.0 | 1 Ke Jul. 09, 1942 Jul. 09, 1953 11.0 Years
4.0 | 1 Me Jul. 09, 1953 Jul. 09, 1966 13.0 Years
5.0 | 1 Ra Jul. 09, 1966 Jul. 08, 1981 15.0 Years
6.0 | 1 Ma Jul. 08, 1981 Jul. 08, 1998 17.0 Years
7.0 | 1 Sa Jul. 08, 1998 Jul. 08, 2017 19.0 Years
8.0 | 1 Mo Jul. 08, 2017 Jul. 08, 2038 21.0 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 H1.

Maha Dasha

S.No. Period Start End Duration
1 | 1 Mo Aug. 01, 1920 Aug. 02, 1935 15.0 Years
2 | 1 Ma Aug. 02, 1935 Aug. 02, 1943 8.0 Years
3 | 1 Me Aug. 02, 1943 Aug. 01, 1960 17.0 Years
4 | 1 Sa Aug. 01, 1960 Aug. 02, 1970 10.0 Years
5 | 1 Ju Aug. 02, 1970 Aug. 01, 1989 19.0 Years
6 | 1 Ra Aug. 01, 1989 Aug. 01, 2001 12.0 Years
7 | 1 Ve Aug. 01, 2001 Aug. 01, 2022 21.0 Years
8 | 1 Su Aug. 01, 2022 Aug. 01, 2028 6.0 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 Ta and same for D1 and D12 charts.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Su Dec. 17, 1924 Dec. 17, 1936 12.0 Years
2.0 | 1 Me Dec. 17, 1936 Dec. 17, 1949 13.0 Years
3.0 | 1 Sa Dec. 17, 1949 Dec. 18, 1963 14.0 Years
4.0 | 1 Ma Dec. 18, 1963 Dec. 17, 1978 15.0 Years
5.0 | 1 Ve Dec. 17, 1978 Dec. 17, 1994 16.0 Years
6.0 | 1 Mo Dec. 17, 1994 Dec. 17, 2011 17.0 Years
7.0 | 1 Ju Dec. 17, 2011 Dec. 17, 2029 18.0 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 (Ta) is vargottam.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ju Jun. 21, 1922 Jun. 21, 1942 20.0 Years
2.0 | 1 Ma Jun. 21, 1942 Jun. 21, 1962 20.0 Years
3.0 | 1 Sa Jun. 21, 1962 Jun. 20, 1992 30.0 Years
4.0 | 1 Su Jun. 20, 1992 Jun. 20, 1997 5.0 Years
5.0 | 1 Mo Jun. 20, 1997 Jun. 20, 2002 5.0 Years
6.0 | 1 Ve Jun. 20, 2002 Jun. 20, 2012 10.0 Years
7.0 | 1 Me Jun. 20, 2012 Jun. 20, 2022 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

Chaturshiti Sama Dasha

H10 lord should be in H10.

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

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ma Dec. 17, 1924 Dec. 17, 1936 12.0 Years
2.0 | 1 Me Dec. 17, 1936 Dec. 17, 1948 12.0 Years
3.0 | 1 Ju Dec. 17, 1948 Dec. 17, 1960 12.0 Years
4.0 | 1 Ve Dec. 17, 1960 Dec. 17, 1972 12.0 Years
5.0 | 1 Sa Dec. 17, 1972 Dec. 17, 1984 12.0 Years
6.0 | 1 Su Dec. 17, 1984 Dec. 17, 1996 12.0 Years
7.0 | 1 Mo Dec. 17, 1996 Dec. 17, 2008 12.0 Years
8.0 | 2 Ma Dec. 17, 2008 Dec. 16, 2020 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 (Ma) is located in H1.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Me Nov. 23, 1925 Nov. 24, 1934 9.0 Years
2.0 | 1 Ju Nov. 24, 1934 Nov. 24, 1943 9.0 Years
3.0 | 1 Ve Nov. 24, 1943 Nov. 23, 1952 9.0 Years
4.0 | 1 Sa Nov. 23, 1952 Nov. 23, 1961 9.0 Years
5.0 | 1 Ra Nov. 23, 1961 Nov. 23, 1970 9.0 Years
6.0 | 1 Su Nov. 23, 1970 Nov. 24, 1979 9.0 Years
7.0 | 1 Mo Nov. 24, 1979 Nov. 23, 1988 9.0 Years
8.0 | 1 Ma Nov. 23, 1988 Nov. 23, 1997 9.0 Years
9.0 | 2 Me Nov. 23, 1997 Nov. 23, 2006 9.0 Years
10.0 | 2 Ju Nov. 23, 2006 Nov. 23, 2015 9.0 Years
11.0 | 2 Ve Nov. 23, 2015 Nov. 22, 2024 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 Mo Oct. 31, 1926 Oct. 30, 1932 6.0 Years
2 | 1 Me Oct. 30, 1932 Oct. 31, 1938 6.0 Years
3 | 1 Ve Oct. 31, 1938 Oct. 30, 1944 6.0 Years
4 | 1 Sa Oct. 30, 1944 Oct. 31, 1950 6.0 Years
5 | 1 Ra Oct. 31, 1950 Oct. 30, 1956 6.0 Years
6 | 1 Ju Oct. 30, 1956 Oct. 30, 1966 10.0 Years
7 | 1 Su Oct. 30, 1966 Oct. 30, 1976 10.0 Years
8 | 1 Ma Oct. 30, 1976 Oct. 30, 1986 10.0 Years
9 | 2 Mo Oct. 30, 1986 Oct. 30, 1992 6.0 Years
10 | 2 Me Oct. 30, 1992 Oct. 30, 1998 6.0 Years
11 | 2 Ve Oct. 30, 1998 Oct. 30, 2004 6.0 Years
12 | 2 Sa Oct. 30, 2004 Oct. 30, 2010 6.0 Years
13 | 2 Ra Oct. 30, 2010 Oct. 30, 2016 6.0 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 Moon Hora and fall under category of Night Birth.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Mo May. 22, 1928 May. 22, 1929 1.0 Years
2.0 | 1 Su May. 22, 1929 May. 22, 1931 2.0 Years
3.0 | 1 Ju May. 22, 1931 May. 22, 1934 3.0 Years
4.0 | 1 Ma May. 22, 1934 May. 22, 1938 4.0 Years
5.0 | 1 Me May. 22, 1938 May. 22, 1943 5.0 Years
6.0 | 1 Sa May. 22, 1943 May. 22, 1949 6.0 Years
7.0 | 1 Ve May. 22, 1949 May. 21, 1956 7.0 Years
8.0 | 1 Ra May. 21, 1956 May. 21, 1964 8.0 Years
9.0 | 2 Mo May. 21, 1964 May. 22, 1965 1.0 Years
10.0 | 2 Su May. 22, 1965 May. 22, 1967 2.0 Years
11.0 | 2 Ju May. 22, 1967 May. 22, 1970 3.0 Years
12.0 | 2 Ma May. 22, 1970 May. 22, 1974 4.0 Years
13.0 | 2 Me May. 22, 1974 May. 22, 1979 5.0 Years
14.0 | 2 Sa May. 22, 1979 May. 21, 1985 6.0 Years
15.0 | 2 Ve May. 21, 1985 May. 21, 1992 7.0 Years
16.0 | 2 Ra May. 21, 1992 May. 21, 2000 8.0 Years
17.0 | 3 Mo May. 21, 2000 May. 21, 2001 1.0 Years
18.0 | 3 Su May. 21, 2001 May. 22, 2003 2.0 Years
19.0 | 3 Ju May. 22, 2003 May. 21, 2006 3.0 Years
20.0 | 3 Ma May. 21, 2006 May. 21, 2010 4.0 Years
21.0 | 3 Me May. 21, 2010 May. 22, 2015 5.0 Years
22.0 | 3 Sa May. 22, 2015 May. 21, 2021 6.0 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