Retrograde periods for Mercury, Venus, Mars, Jupiter and Saturn. Rahu and Ketu are always retrograde by convention.
1 retrograde period in 1956
121 days in Simha
3 retrograde periods in 1956
21 days in Makara
24 days in Vrishabha
22 days in Kanya
1 retrograde period in 1956
141 days in Vrishchika
1 retrograde period in 1956
43 days in Mithuna
1 retrograde period in 1956
61 days in Kumbha
Rahu and Ketu are the lunar nodes and are always Vakri (retrograde). They move backwards through the zodiac at roughly 1.5° per month and change Rashi only once every ~18 months.
