Retrograde periods for Mercury, Venus, Mars, Jupiter and Saturn. Rahu and Ketu are always retrograde by convention.
1 retrograde period in 2009
136 days in Simha
4 retrograde periods in 2009
21 days in Makara
24 days in Vrishabha
22 days in Kanya
20 days in Dhanu
1 retrograde period in 2009
42 days in Meena
1 retrograde period in 2009
120 days in Makara
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.
