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Mercury retrograde 1973: exact dates and times

Station instants computed with Swiss Ephemeris to the minute, in UTC. Mercury is retrograde about 3.3 times a year for 19–24 days.

Mercury is retrograde 3 times in 1973: from Mar 4, 1973, 12:58 UTC at 28°36′ Pisces until Mar 27, 1973, 08:19 UTC at 15°01′ Pisces; from Jul 6, 1973, 17:00 UTC at 3°21′ Leo until Jul 30, 1973, 21:47 UTC at 22°52′ Cancer; from Oct 30, 1973, 10:30 UTC at 26°36′ Scorpio until Nov 19, 1973, 14:14 UTC at 10°34′ Scorpio.

Mercury retrograde periods in 1973

All instants UTC. Arc = degrees travelled backwards between the two stations.

Stations retrograde	At	Stations direct	At	Days	Arc	Pre-shadow from	Post-shadow to
Mar 4, 1973, 12:58 UTC	28°36′ Pisces	Mar 27, 1973, 08:19 UTC	15°01′ Pisces	22.81	13.58°	15°01′ Pisces	28°36′ Pisces
Jul 6, 1973, 17:00 UTC	3°21′ Leo	Jul 30, 1973, 21:47 UTC	22°52′ Cancer	24.2	10.49°	22°52′ Cancer	3°21′ Leo
Oct 30, 1973, 10:30 UTC	26°36′ Scorpio	Nov 19, 1973, 14:14 UTC	10°34′ Scorpio	20.16	16.05°	10°34′ Scorpio	26°36′ Scorpio

Sign changes during retrograde

Instant (UTC)	From	To
Jul 16, 1973, 08:03 UTC	Leo	Cancer

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