In 1981, Mercury has three retrograde periods: in Pisces, Aquarius, Cancer, Gemini, Scorpio and Libra. The first begins on February 8. The last ends on October 27.
Retrograde periods in 1981
February 8 – March 2
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Pisces into Aquarius
- Length
- 22 days
June 9 – July 3
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Cancer into Gemini
- Length
- 24 days
October 6 – October 27
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Scorpio into Libra
- Length
- 21 days