1938 brought 12 full moons and 4 eclipses. The eclipses fell: a total lunar eclipse in Scorpio on May 14, a total solar eclipse in Gemini on May 29, a total lunar eclipse in Taurus on November 7, and a partial solar eclipse in Scorpio on November 21. Mercury turned retrograde three times (Apr 11 to May 5; Aug 14 to Sep 6; Dec 4 to Dec 24). The first full moon rose in Cancer on January 16. 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 1938
- New Moon in Capricorn
- Mercury Rx enters Sagittarius
- Juno enters Sagittarius
- First Quarter Moon in Aries
- Mercury Direct
- Mercury enters Capricorn
- Saturn enters Aries
- Full Moon in Cancer
- Uranus Direct
- Sun enters Aquarius
- Last Quarter Moon in Scorpio
- Venus enters Aquarius
- Mars enters Aries
- New Moon in Aquarius
February 1938
- First Quarter Moon in Taurus
- Mercury enters Aquarius
- Full Moon in Leo
- Venus enters Pisces
- Sun enters Pisces
- Last Quarter Moon in Sagittarius
- Mercury enters Pisces
- Vesta enters Sagittarius
March 1938
- Chiron Direct
- New Moon in Pisces
- True Node Rx enters Scorpio
- Pallas enters Pisces
- First Quarter Moon in Gemini
- Mars enters Taurus
- Venus enters Aries
- Ceres enters Aries
- Mercury enters Aries
- Full Moon in Virgo
- Sun enters Aries (Spring Equinox)
- Last Quarter Moon in Capricorn
- New Moon in Aries
April 1938
- Mercury enters Taurus
- Juno Retrograde
- Venus enters Taurus
- First Quarter Moon in Cancer
- Vesta Retrograde
- Pluto Direct
- Mercury Retrograde
- Full Moon in Libra
- Sun enters Taurus
- Last Quarter Moon in Aquarius
- Mercury Rx enters Aries
- Mars enters Gemini
- Venus enters Gemini
- New Moon in Taurus
May 1938
- Mercury Direct
- First Quarter Moon in Leo
- Jupiter enters Pisces
- Total Lunar Eclipse (Full Moon) in Scorpio
- Mercury enters Taurus
- Vesta Rx enters Scorpio
- Sun enters Gemini
- Last Quarter Moon in Pisces
- Venus enters Cancer
- Chiron enters Cancer
- Total Solar Eclipse (New Moon) in Gemini
- Ceres enters Taurus
- Neptune Direct
June 1938
- First Quarter Moon in Virgo
- Mars enters Cancer
- Mercury enters Gemini
- Full Moon in Sagittarius
- Venus enters Leo
- Last Quarter Moon in Pisces
- Jupiter Retrograde
- Sun enters Cancer (Summer Solstice)
- Mercury enters Cancer
- New Moon in Cancer
July 1938
- Vesta Direct
- First Quarter Moon in Libra
- Juno Rx enters Scorpio
- Mercury enters Leo
- Full Moon in Capricorn
- Venus enters Virgo
- Pallas Retrograde
- Last Quarter Moon in Aries
- Mars enters Leo
- Sun enters Leo
- Juno Direct
- Mercury enters Virgo
- New Moon in Leo
- Jupiter Rx enters Aquarius
- Saturn Retrograde
August 1938
- First Quarter Moon in Scorpio
- Pluto enters Leo
- Venus enters Libra
- Full Moon in Aquarius
- Juno enters Sagittarius
- Mercury Retrograde
- Vesta enters Sagittarius
- Last Quarter Moon in Taurus
- Sun enters Virgo
- Uranus Retrograde
- New Moon in Virgo
September 1938
- First Quarter Moon in Sagittarius
- Mercury Rx enters Leo
- Mercury Direct
- Venus enters Scorpio
- Mars enters Virgo
- Full Moon in Pisces
- Mercury enters Virgo
- Last Quarter Moon in Gemini
- Sun enters Libra (Autumn Equinox)
- New Moon in Libra
- Ceres Retrograde
- Mercury enters Libra
October 1938
- First Quarter Moon in Capricorn
- Full Moon in Aries
- Venus enters Sagittarius
- Last Quarter Moon in Cancer
- Mercury enters Scorpio
- Jupiter Direct
- Chiron Retrograde
- New Moon in Libra
- Sun enters Scorpio
- Mars enters Libra
- Vesta enters Capricorn
- Venus Retrograde
- First Quarter Moon in Aquarius
November 1938
- Pluto Retrograde
- Mercury enters Sagittarius
- Total Lunar Eclipse (Full Moon) in Taurus
- Pallas Direct
- Last Quarter Moon in Leo
- Venus Rx enters Scorpio
- Partial Solar Eclipse (New Moon) in Scorpio
- Sun enters Sagittarius
- First Quarter Moon in Pisces
December 1938
- Juno enters Capricorn
- Mercury Retrograde
- Full Moon in Gemini
- Venus Direct
- Mars enters Scorpio
- Last Quarter Moon in Virgo
- Saturn Direct
- New Moon in Sagittarius
- Sun enters Capricorn (Winter Solstice)
- Mercury Direct
- Neptune Retrograde
- Vesta enters Aquarius
- Jupiter enters Pisces
- First Quarter Moon in Aries