1. Home
2. Sky calendar
3. December 2025

Sky calendar for December 2025

Eclipses, new and full moons, planet ingresses, retrogrades and aspects of the slow planets, day by day. Times are in UTC.

4 December, Thu

• 23:14 — Full Moon — Gemini

10 December, Wed

• 12:23 — Neptune turns direct

11 December, Thu

• 22:39 — Mercury enters Sagittarius

15 December, Mon

• 07:33 — Mars enters Capricorn

20 December, Sat

• 01:43 — New Moon — Sagittarius

21 December, Sun

• 15:03 — Sun enters Capricorn

24 December, Wed

• 16:25 — Venus enters Capricorn

Lunar calendar for this month · All eclipses