Retrograde periods for Mercury, Venus, Mars, Jupiter and Saturn. Rahu and Ketu are always retrograde by convention.
1 retrograde period in 2022
41 days in Dhanu
4 retrograde periods in 2022
21 days in Makara
24 days in Vrishabha
22 days in Kanya
20 days in Dhanu
1 retrograde period in 2022
140 days in Makara
1 retrograde period in 2022
118 days in Meena
1 retrograde period in 2022
74 days in Vrishabha
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.