The sky
in December 2026.
Everything the sky does in December 2026, day by day, to the minute, Paris time: new and full moons, planets entering signs, exact aspects between planets, retrogrades, eclipses and void of course Moon. Calculated from ephemerides. Next to moons, eclipses and retrogrades, the ☉ tag tells which birthdays it speaks to; every line leads to its own page.
Last quarter in Virgo, 9°03′.
Day by day
The ☉ tag gives the birthdays whose birth Sun is at that degree, to within one degree (births from 1920 to 2030).
Tuesday 1 December
Friday 4 December
Sunday 6 December
Monday 7 December
Tuesday 8 December
Wednesday 9 December
- ●New Moon in Sagittarius, 16°56′☉︎ 7–11 December
- ☿︎□♂︎Mercury-Mars square
- ♀︎□♇︎Venus-Pluto square
Friday 11 December
- ♄︎DSaturn turns direct at 7°55′ Aries☉︎ 26–30 March
- ☿︎△♄︎Mercury-Saturn trine
Saturday 12 December
- ♀︎⚹♂︎Venus-Mars sextile
- ♆︎DNeptune turns direct at 1°37′ Aries☉︎ 20–24 March
Sunday 13 December
- ♃︎℞Jupiter turns retrograde at 27°01′ Leo☉︎ 18–22 August
Thursday 17 December
Friday 18 December
- ☉︎△♃︎Sun-Jupiter trine
Monday 21 December
Wednesday 23 December
- ☉︎□♆︎Sun-Neptune square
- ☿︎△♃︎Mercury-Jupiter trine
Thursday 24 December
- ○Full Moon in Cancer, 2°14′☉︎ 21–25 June
Friday 25 December
Saturday 26 December
Wednesday 30 December
Thursday 31 December
- ☿︎□♄︎Mercury-Saturn square
- ☉︎△♂︎Sun-Mars trine
Retrogrades and void of course Moon
The Moon is void of course 13 times this month in the classical convention (145h 07m in all), 13 times in the modern one (145h 07m). All the times →
Questions
What are the key dates in December 2026?
New Moon on the 9th at 01:53 (Sagittarius) and full Moon on the 24th at 02:29 (Cancer). Sign changes: Venus into Scorpio on the 4th, Mercury into Sagittarius on the 6th, the Sun into Capricorn on the 21st and Mercury into Capricorn on the 25th.
Which planets are retrograde in December 2026?
Jupiter from the 13th, Saturn until the 11th, Uranus all month and Neptune until the 12th.
How many exact aspects between planets in December 2026?
16 exact aspects, Moon excluded. The first: Mercury-Jupiter square on the 4th at 08:02; the last: Sun-Mars trine on the 31st at 13:03.
This month, on YOUR chart
These dates are the same for everyone. Your birthday tells where your Sun is; your birth, to the minute, tells where the other nine are. Every day AstroXP crosses the real sky with all ten, and tells you which ones concern you.
On a computer? Scan this code with your phone.
Calendars
Calculated with astronomy-engine (the app’s engine), geocentric positions, tropical zodiac. Paris time. Exact aspects between planets, Moon excluded; each day’s Moon is drawn at noon.