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Mercury retrograde 1978: 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 1978: from Apr 1, 1978, 16:17 UTC at 26°08′ Aries until Apr 25, 1978, 06:47 UTC at 14°52′ Aries; from Aug 4, 1978, 23:08 UTC at 3°01′ Virgo until Aug 28, 1978, 15:41 UTC at 20°20′ Leo; from Nov 25, 1978, 21:42 UTC at 21°38′ Sagittarius until Dec 15, 1978, 15:57 UTC at 5°22′ Sagittarius.

Mercury retrograde periods in 1978

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
Apr 1, 1978, 16:17 UTC	26°08′ Aries	Apr 25, 1978, 06:47 UTC	14°52′ Aries	23.6	11.27°	14°52′ Aries	26°08′ Aries
Aug 4, 1978, 23:08 UTC	3°01′ Virgo	Aug 28, 1978, 15:41 UTC	20°20′ Leo	23.69	12.67°	20°20′ Leo	3°01′ Virgo
Nov 25, 1978, 21:42 UTC	21°38′ Sagittarius	Dec 15, 1978, 15:57 UTC	5°22′ Sagittarius	19.76	16.27°	5°22′ Sagittarius	21°38′ Sagittarius

Sign changes during retrograde

Instant (UTC)	From	To
Aug 13, 1978, 07:06 UTC	Virgo	Leo

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