Across 1966, the sky delivered 13 full moons and 4 eclipses. The eclipses fell: a penumbral lunar eclipse in Scorpio on May 4, an annular solar eclipse in Taurus on May 20, a penumbral lunar eclipse in Taurus on October 29, and a total solar eclipse in Scorpio on November 12. Mercury turned retrograde three times (Mar 11 to Apr 3; Jul 14 to Aug 7; Nov 6 to Nov 26). The first full moon rose in Cancer on January 7. August saw two full moons, a blue moon. Every full moon, new moon, solar and lunar eclipse, equinox, solstice, planetary ingress, and retrograde station below is computed to the millisecond with the NASA-cross-checked Swiss Ephemeris engine and shown in Eastern Time - Choose your location on the page for your own sky.
January 1966
- Venus Retrograde
- Juno enters Pisces
- Full Moon in Cancer
- Mercury enters Capricorn
- Last Quarter Moon in Libra
- Ceres enters Aries
- Sun enters Aquarius
- New Moon in Aquarius
- Vesta Rx enters Gemini
- Mercury enters Aquarius
- Pallas enters Pisces
- First Quarter Moon in Taurus
- Mars enters Pisces
February 1966
- Full Moon in Leo
- Venus Rx enters Capricorn
- Last Quarter Moon in Scorpio
- Mercury enters Pisces
- Vesta Direct
- Jupiter Direct
- Venus Direct
- Sun enters Pisces
- True Node Rx enters Taurus
- New Moon in Pisces
- Neptune Retrograde
- Venus enters Aquarius
- First Quarter Moon in Gemini
March 1966
- Mercury enters Aries
- Full Moon in Virgo
- Juno enters Aries
- Vesta enters Cancer
- Mars enters Aries
- Mercury Retrograde
- Last Quarter Moon in Sagittarius
- Sun enters Aries (Spring Equinox)
- Mercury Rx enters Pisces
- New Moon in Aries
- First Quarter Moon in Cancer
April 1966
- Mercury Direct
- Full Moon in Libra
- Venus enters Pisces
- Ceres enters Taurus
- Last Quarter Moon in Capricorn
- Mars enters Taurus
- Mercury enters Aries
- Sun enters Taurus
- New Moon in Taurus
- First Quarter Moon in Leo
- Juno enters Taurus
- Pallas enters Aries
May 1966
- Penumbral Lunar Eclipse (Full Moon) in Scorpio
- Venus enters Aries
- Jupiter enters Cancer
- Mercury enters Taurus
- Last Quarter Moon in Aquarius
- Annular Solar Eclipse (New Moon) in Taurus
- Sun enters Gemini
- Uranus Direct
- Mercury enters Gemini
- First Quarter Moon in Virgo
- Pluto Direct
- Mars enters Gemini
- Venus enters Taurus
June 1966
- Full Moon in Sagittarius
- Mercury enters Cancer
- Vesta enters Leo
- Last Quarter Moon in Pisces
- New Moon in Gemini
- Ceres enters Gemini
- Juno enters Gemini
- Sun enters Cancer (Summer Solstice)
- First Quarter Moon in Libra
- Venus enters Gemini
- Mercury enters Leo
- Chiron Retrograde
July 1966
- Full Moon in Capricorn
- Last Quarter Moon in Aries
- Mars enters Cancer
- Saturn Retrograde
- Mercury Retrograde
- New Moon in Cancer
- Venus enters Cancer
- Sun enters Leo
- First Quarter Moon in Scorpio
August 1966
- Neptune Direct
- Full Moon in Aquarius
- Mercury Direct
- Last Quarter Moon in Taurus
- Pallas Retrograde
- Juno enters Cancer
- Venus enters Leo
- Vesta enters Virgo
- New Moon in Leo
- First Quarter Moon in Scorpio
- Sun enters Virgo
- Mars enters Leo
- Full Moon in Pisces
September 1966
- Mercury enters Virgo
- Last Quarter Moon in Gemini
- Venus enters Virgo
- New Moon in Virgo
- Ceres enters Cancer
- Mercury enters Libra
- First Quarter Moon in Sagittarius
- Sun enters Libra (Autumn Equinox)
- Jupiter enters Leo
- Full Moon in Aries
October 1966
- Venus enters Libra
- Mercury enters Scorpio
- Last Quarter Moon in Cancer
- Mars enters Virgo
- Juno enters Leo
- New Moon in Libra
- Vesta enters Libra
- First Quarter Moon in Capricorn
- Sun enters Scorpio
- Venus enters Scorpio
- Penumbral Lunar Eclipse (Full Moon) in Taurus
- Mercury enters Sagittarius
November 1966
- Ceres Retrograde
- Last Quarter Moon in Leo
- Mercury Retrograde
- Total Solar Eclipse (New Moon) in Scorpio
- Mercury Rx enters Scorpio
- First Quarter Moon in Aquarius
- Venus enters Sagittarius
- Jupiter Retrograde
- Sun enters Sagittarius
- Saturn Direct
- Mercury Direct
- Full Moon in Gemini
- Pallas Direct
December 1966
- Chiron Direct
- Mars enters Libra
- Last Quarter Moon in Virgo
- Mercury enters Sagittarius
- New Moon in Sagittarius
- Juno Retrograde
- Venus enters Capricorn
- Vesta enters Scorpio
- First Quarter Moon in Pisces
- Sun enters Capricorn (Winter Solstice)
- Ceres Rx enters Gemini
- Pluto Retrograde
- Full Moon in Cancer
- Uranus Retrograde
- Mercury enters Capricorn