Retrograde periods for Mercury, Venus, Mars, Jupiter and Saturn. Rahu and Ketu are always retrograde by convention.
1 retrograde period in 2027
121 days in கடகம்
1 retrograde period in 2027
81 days in சிம்மம்
3 retrograde periods in 2027
22 days in கும்பம்
24 days in மிதுனம்
21 days in துலாம்
1 retrograde period in 2027
136 days in மேஷம்
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.
