Mercury retrograde 1975

3 periods, 67 days inside the year — 18.3% of 1975. Station times below are UTC and computed to the minute.

21 days · retreats 15.48°

30 January → 20 February 1975 in Aquarius

Stations retrograde 30 Jan 1975, 10:47 UTC at 25.79° Aquarius
Stations direct 20 Feb 1975, 19:23 UTC at 10.31° Aquarius
Shadow opens 15 Jan 1975 (15 days before)
Shadow closes 12 Mar 1975 (20 days after)
Full window including shadows 57 days

Read against Aquarius, and see that sign’s horoscope for the period.

24 days · retreats 8.59°

29 May → 22 June 1975 in Gemini

Stations retrograde 29 May 1975, 16:03 UTC at 23.93° Gemini
Stations direct 22 Jun 1975, 14:58 UTC at 15.35° Gemini
Shadow opens 14 May 1975 (15 days before)
Shadow closes 7 Jul 1975 (15 days after)
Full window including shadows 54 days

Read against Gemini, and see that sign’s horoscope for the period.

21 days · retreats 15.34°

26 September → 18 October 1975 in Libra

Stations retrograde 26 Sep 1975, 23:42 UTC at 24.76° Libra
Stations direct 18 Oct 1975, 10:07 UTC at 9.42° Libra
Shadow opens 6 Sep 1975 (20 days before)
Shadow closes 2 Nov 1975 (15 days after)
Full window including shadows 57 days

Read against Libra, and see that sign’s horoscope for the period.

Computed from the actual motion

The nearest Mercury retrogrades either side of 1975

Previous

1974 Ended 3 November 1974 after 21 days, moving back 15.77° through the zodiac.

Next

1976 Begins 14 January 1976 and runs 21 days.

Gap across 1975

1.2 years between the two — long enough for a whole calendar year to fall inside it with nothing to report.

Both dates are computed from the planet’s apparent motion, not taken from a table. A retrograde begins the moment its daily movement against the stars turns negative, and that moment is findable to the hour.