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 धनु
4 retrograde periods in 2022
21 days in मकर
24 days in वृष
22 days in कन्या
20 days in धनु
1 retrograde period in 2022
140 days in मकर
1 retrograde period in 2022
118 days in मीन
1 retrograde period in 2022
74 days in वृष
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.