In 2042, Mercury has four retrograde periods: in Aquarius, Capricorn, Taurus, Libra and Virgo. The first begins on January 9. The last begins on December 24 and runs into the new year.
Retrograde periods in 2042
January 9 – January 30
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Aquarius into Capricorn
- Length
- 21 days
May 5 – May 28
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- Taurus
- Length
- 23 days
September 5 – September 27
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- from Libra into Virgo
- Length
- 22 days
December 24, 2042 – January 13, 2043
- Shadow begins
- Retrograde begins
- Turns direct
- Shadow ends
- Sign
- Capricorn
- Length
- 20 days