Astrology Calculations

This page provides an in-depth look at Royden Derrick'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 Me Apr. 10, 1904 Apr. 10, 1921 17.0 Years
2 | 1 Ke Apr. 10, 1921 Apr. 10, 1928 7.0 Years
3 | 1 Ve Apr. 10, 1928 Apr. 09, 1948 20.0 Years
4 | 1 Su Apr. 09, 1948 Apr. 10, 1954 6.0 Years
5 | 1 Mo Apr. 10, 1954 Apr. 09, 1964 10.0 Years
6 | 1 Ma Apr. 09, 1964 Apr. 10, 1971 7.0 Years
7 | 1 Ra Apr. 10, 1971 Apr. 09, 1989 18.0 Years
8 | 1 Ju Apr. 09, 1989 Apr. 09, 2005 16.0 Years
9 | 1 Sa Apr. 09, 2005 Apr. 09, 2024 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

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 Ma Aug. 18, 1907 Aug. 18, 1919 12.0 Years
2.0 | 1 Ju Aug. 18, 1919 Aug. 17, 1932 13.0 Years
3.0 | 1 Sa Aug. 17, 1932 Aug. 18, 1946 14.0 Years
4.0 | 1 Ke Aug. 18, 1946 Aug. 17, 1961 15.0 Years
5.0 | 1 Mo Aug. 17, 1961 Aug. 17, 1977 16.0 Years
6.0 | 1 Me Aug. 17, 1977 Aug. 17, 1994 17.0 Years
7.0 | 1 Ve Aug. 17, 1994 Aug. 17, 2012 18.0 Years
8.0 | 1 Su Aug. 17, 2012 Aug. 17, 2023 11.0 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 Su.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ke Apr. 19, 1908 Apr. 20, 1919 11.0 Years
2.0 | 1 Me Apr. 20, 1919 Apr. 19, 1932 13.0 Years
3.0 | 1 Ra Apr. 19, 1932 Apr. 20, 1947 15.0 Years
4.0 | 1 Ma Apr. 20, 1947 Apr. 19, 1964 17.0 Years
5.0 | 1 Sa Apr. 19, 1964 Apr. 20, 1983 19.0 Years
6.0 | 1 Mo Apr. 20, 1983 Apr. 19, 2004 21.0 Years
7.0 | 1 Su Apr. 19, 2004 Apr. 19, 2011 7.0 Years
8.0 | 1 Ju Apr. 19, 2011 Apr. 18, 2020 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

Ashtottari Dasha

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

In this kundali, Rahu is located in H7.

Maha Dasha

S.No. Period Start End Duration
1 | 1 Su Mar. 05, 1910 Mar. 05, 1916 6.0 Years
2 | 1 Mo Mar. 05, 1916 Mar. 05, 1931 15.0 Years
3 | 1 Ma Mar. 05, 1931 Mar. 05, 1939 8.0 Years
4 | 1 Me Mar. 05, 1939 Mar. 04, 1956 17.0 Years
5 | 1 Sa Mar. 04, 1956 Mar. 05, 1966 10.0 Years
6 | 1 Ju Mar. 05, 1966 Mar. 04, 1985 19.0 Years
7 | 1 Ra Mar. 04, 1985 Mar. 04, 1997 12.0 Years
8 | 1 Ve Mar. 04, 1997 Mar. 04, 2018 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

Panchottari Dasha

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

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

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Mo Apr. 10, 1904 Apr. 10, 1921 17.0 Years
2.0 | 1 Ju Apr. 10, 1921 Apr. 10, 1939 18.0 Years
3.0 | 1 Su Apr. 10, 1939 Apr. 10, 1951 12.0 Years
4.0 | 1 Me Apr. 10, 1951 Apr. 09, 1964 13.0 Years
5.0 | 1 Sa Apr. 09, 1964 Apr. 10, 1978 14.0 Years
6.0 | 1 Ma Apr. 10, 1978 Apr. 09, 1993 15.0 Years
7.0 | 1 Ve Apr. 09, 1993 Apr. 09, 2009 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

Shatabdika Dasha

Birth ascendant should be vargottam.

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

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Ve Dec. 20, 1908 Dec. 21, 1918 10.0 Years
2.0 | 1 Me Dec. 21, 1918 Dec. 20, 1928 10.0 Years
3.0 | 1 Ju Dec. 20, 1928 Dec. 20, 1948 20.0 Years
4.0 | 1 Ma Dec. 20, 1948 Dec. 20, 1968 20.0 Years
5.0 | 1 Sa Dec. 20, 1968 Dec. 20, 1998 30.0 Years
6.0 | 1 Su Dec. 20, 1998 Dec. 20, 2003 5.0 Years
7.0 | 1 Mo Dec. 20, 2003 Dec. 20, 2008 5.0 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 (Ma) is located in H10.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Su Aug. 18, 1907 Aug. 18, 1919 12.0 Years
2.0 | 1 Mo Aug. 18, 1919 Aug. 18, 1931 12.0 Years
3.0 | 1 Ma Aug. 18, 1931 Aug. 18, 1943 12.0 Years
4.0 | 1 Me Aug. 18, 1943 Aug. 18, 1955 12.0 Years
5.0 | 1 Ju Aug. 18, 1955 Aug. 18, 1967 12.0 Years
6.0 | 1 Ve Aug. 18, 1967 Aug. 18, 1979 12.0 Years
7.0 | 1 Sa Aug. 18, 1979 Aug. 18, 1991 12.0 Years
8.0 | 2 Su Aug. 18, 1991 Aug. 17, 2003 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 (Sa) is located in H1, H7 lord (Sa) is located in H1.

Maha Dasha

S.No. Period Start End Duration
1.0 | 1 Mo Aug. 23, 1909 Aug. 23, 1918 9.0 Years
2.0 | 1 Ma Aug. 23, 1918 Aug. 23, 1927 9.0 Years
3.0 | 1 Me Aug. 23, 1927 Aug. 22, 1936 9.0 Years
4.0 | 1 Ju Aug. 22, 1936 Aug. 22, 1945 9.0 Years
5.0 | 1 Ve Aug. 22, 1945 Aug. 22, 1954 9.0 Years
6.0 | 1 Sa Aug. 22, 1954 Aug. 23, 1963 9.0 Years
7.0 | 1 Ra Aug. 23, 1963 Aug. 22, 1972 9.0 Years
8.0 | 1 Su Aug. 22, 1972 Aug. 22, 1981 9.0 Years
9.0 | 2 Mo Aug. 22, 1981 Aug. 22, 1990 9.0 Years
10.0 | 2 Ma Aug. 22, 1990 Aug. 22, 1999 9.0 Years
11.0 | 2 Me Aug. 22, 1999 Aug. 22, 2008 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 Ma Mar. 18, 1911 Mar. 17, 1921 10.0 Years
2 | 1 Mo Mar. 17, 1921 Mar. 17, 1927 6.0 Years
3 | 1 Me Mar. 17, 1927 Mar. 17, 1933 6.0 Years
4 | 1 Ve Mar. 17, 1933 Mar. 17, 1939 6.0 Years
5 | 1 Sa Mar. 17, 1939 Mar. 17, 1945 6.0 Years
6 | 1 Ra Mar. 17, 1945 Mar. 17, 1951 6.0 Years
7 | 1 Ju Mar. 17, 1951 Mar. 17, 1961 10.0 Years
8 | 1 Su Mar. 17, 1961 Mar. 17, 1971 10.0 Years
9 | 2 Ma Mar. 17, 1971 Mar. 16, 1981 10.0 Years
10 | 2 Mo Mar. 16, 1981 Mar. 17, 1987 6.0 Years
11 | 2 Me Mar. 17, 1987 Mar. 16, 1993 6.0 Years
12 | 2 Ve Mar. 16, 1993 Mar. 17, 1999 6.0 Years
13 | 2 Sa Mar. 17, 1999 Mar. 16, 2005 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 Ve Dec. 26, 1910 Dec. 26, 1917 7.0 Years
2.0 | 1 Ra Dec. 26, 1917 Dec. 25, 1925 8.0 Years
3.0 | 1 Mo Dec. 25, 1925 Dec. 26, 1926 1.0 Years
4.0 | 1 Su Dec. 26, 1926 Dec. 25, 1928 2.0 Years
5.0 | 1 Ju Dec. 25, 1928 Dec. 26, 1931 3.0 Years
6.0 | 1 Ma Dec. 26, 1931 Dec. 26, 1935 4.0 Years
7.0 | 1 Me Dec. 26, 1935 Dec. 25, 1940 5.0 Years
8.0 | 1 Sa Dec. 25, 1940 Dec. 26, 1946 6.0 Years
9.0 | 2 Ve Dec. 26, 1946 Dec. 25, 1953 7.0 Years
10.0 | 2 Ra Dec. 25, 1953 Dec. 25, 1961 8.0 Years
11.0 | 2 Mo Dec. 25, 1961 Dec. 25, 1962 1.0 Years
12.0 | 2 Su Dec. 25, 1962 Dec. 25, 1964 2.0 Years
13.0 | 2 Ju Dec. 25, 1964 Dec. 26, 1967 3.0 Years
14.0 | 2 Ma Dec. 26, 1967 Dec. 26, 1971 4.0 Years
15.0 | 2 Me Dec. 26, 1971 Dec. 25, 1976 5.0 Years
16.0 | 2 Sa Dec. 25, 1976 Dec. 25, 1982 6.0 Years
17.0 | 3 Ve Dec. 25, 1982 Dec. 25, 1989 7.0 Years
18.0 | 3 Ra Dec. 25, 1989 Dec. 25, 1997 8.0 Years
19.0 | 3 Mo Dec. 25, 1997 Dec. 25, 1998 1.0 Years
20.0 | 3 Su Dec. 25, 1998 Dec. 25, 2000 2.0 Years
21.0 | 3 Ju Dec. 25, 2000 Dec. 25, 2003 3.0 Years
22.0 | 3 Ma Dec. 25, 2003 Dec. 25, 2007 4.0 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