In 1966, Mercury has three retrograde periods: in Aries, Pisces, Leo, Sagittarius and Scorpio. The first begins on March 11. The last ends on November 26.
Retrograde periods in 1966
March 11 – April 3
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Aries into Pisces
- Length
- 23 days
July 14 – August 7
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- Leo
- Length
- 24 days
November 6 – November 26
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Sagittarius into Scorpio
- Length
- 20 days