In 1930, Mercury has four retrograde periods: in Aquarius, Capricorn, Gemini, Taurus, Libra and Virgo. The first begins on January 12. The last begins on December 27 and runs into the new year.
Retrograde periods in 1930
January 12 – February 2
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Aquarius into Capricorn
- Length
- 21 days
May 8 – June 1
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Gemini into Taurus
- Length
- 24 days
September 8 – September 30
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Libra into Virgo
- Length
- 22 days
December 27, 1930 – January 16, 1931
Over
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- Capricorn
- Length
- 20 days