1955 had 13 full moons and 5 eclipses. The eclipses fell: a penumbral lunar eclipse in Cancer on January 8, a penumbral lunar eclipse in Sagittarius on June 5, a total solar eclipse in Gemini on June 20, a partial lunar eclipse in Gemini on November 29, and an annular solar eclipse in Sagittarius on December 14. Mercury turned retrograde three times (Feb 3 to Feb 25; Jun 3 to Jun 27; Oct 1 to Oct 22). The first full moon rose in Cancer on January 8. October 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 1955
- First Quarter Moon in Aries
- Venus enters Sagittarius
- Penumbral Lunar Eclipse (Full Moon) in Cancer
- Mercury enters Aquarius
- Mars enters Aries
- Last Quarter Moon in Libra
- Sun enters Aquarius
- New Moon in Aquarius
- Chiron enters Aquarius
- Neptune Retrograde
- First Quarter Moon in Taurus
- Ceres enters Capricorn
February 1955
- Vesta Direct
- Mercury Retrograde
- Venus enters Capricorn
- Full Moon in Leo
- Last Quarter Moon in Scorpio
- Sun enters Pisces
- New Moon in Pisces
- Mercury Direct
- Mars enters Taurus
March 1955
- Saturn Retrograde
- First Quarter Moon in Gemini
- Venus enters Aquarius
- Juno Retrograde
- Full Moon in Virgo
- Last Quarter Moon in Sagittarius
- Jupiter Direct
- Mercury enters Pisces
- Sun enters Aries (Spring Equinox)
- New Moon in Aries
- Venus enters Pisces
- First Quarter Moon in Cancer
April 1955
- Uranus Direct
- True Node Rx enters Sagittarius
- Mercury enters Aries
- Full Moon in Libra
- Mars enters Gemini
- Vesta enters Cancer
- Last Quarter Moon in Capricorn
- Pallas Retrograde
- Sun enters Taurus
- Mercury enters Taurus
- New Moon in Taurus
- Venus enters Aries
- First Quarter Moon in Leo
May 1955
- Mercury enters Gemini
- Pluto Direct
- Full Moon in Scorpio
- Chiron Retrograde
- Last Quarter Moon in Aquarius
- Venus enters Taurus
- Ceres Retrograde
- Sun enters Gemini
- New Moon in Gemini
- Mars enters Cancer
- First Quarter Moon in Virgo
June 1955
- Mercury Retrograde
- Penumbral Lunar Eclipse (Full Moon) in Sagittarius
- Jupiter enters Leo
- Venus enters Gemini
- Last Quarter Moon in Pisces
- Total Solar Eclipse (New Moon) in Gemini
- Sun enters Cancer (Summer Solstice)
- First Quarter Moon in Libra
- Juno Direct
- Mercury Direct
- Vesta enters Leo
July 1955
- Full Moon in Capricorn
- Neptune Direct
- Venus enters Cancer
- Mars enters Leo
- Last Quarter Moon in Aries
- Mercury enters Cancer
- Saturn Direct
- New Moon in Cancer
- Sun enters Leo
- First Quarter Moon in Scorpio
- Mercury enters Leo
August 1955
- Venus enters Leo
- Pallas Direct
- Full Moon in Aquarius
- Last Quarter Moon in Taurus
- Mercury enters Virgo
- New Moon in Leo
- Sun enters Virgo
- Uranus enters Leo
- First Quarter Moon in Sagittarius
- Venus enters Virgo
- Mars enters Virgo
- Ceres Direct
September 1955
- Mercury enters Libra
- Vesta enters Virgo
- Full Moon in Pisces
- Last Quarter Moon in Gemini
- New Moon in Virgo
- Venus enters Libra
- Sun enters Libra (Autumn Equinox)
- First Quarter Moon in Capricorn
October 1955
- Mercury Retrograde
- Full Moon in Aries
- Last Quarter Moon in Cancer
- Chiron Direct
- Venus enters Scorpio
- Mars enters Libra
- New Moon in Libra
- Mercury Direct
- First Quarter Moon in Capricorn
- Sun enters Scorpio
- Full Moon in Taurus
November 1955
- Juno enters Sagittarius
- Vesta enters Libra
- Pallas enters Capricorn
- Venus enters Sagittarius
- Last Quarter Moon in Leo
- Mercury enters Scorpio
- Uranus Retrograde
- New Moon in Scorpio
- Jupiter enters Virgo
- First Quarter Moon in Aquarius
- Sun enters Sagittarius
- Mercury enters Sagittarius
- Mars enters Scorpio
- Partial Lunar Eclipse (Full Moon) in Gemini
- Venus enters Capricorn
- Pluto Retrograde
December 1955
- Ceres enters Aquarius
- Last Quarter Moon in Virgo
- Annular Solar Eclipse (New Moon) in Sagittarius
- Mercury enters Capricorn
- Jupiter Retrograde
- First Quarter Moon in Pisces
- Sun enters Capricorn (Winter Solstice)
- Venus enters Aquarius
- Neptune enters Scorpio
- Full Moon in Cancer