Retrograde periods for Mercury, Venus, Mars, Jupiter and Saturn. Rahu and Ketu are always retrograde by convention.
1 retrograde period in 1948
135 days in Karka
1 retrograde period in 1948
81 days in Simha
3 retrograde periods in 1948
22 days in Kumbha
24 days in Mithuna
21 days in Tula
1 retrograde period in 1948
123 days in Dhanu
1 retrograde period in 1948
43 days in Mithuna
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.
