1.

December Leonis Minorid meteor shower 2025 The December Leonis Minorid meteor shower reaches its peak. Fri, 19 Dec 2025 (12 days ago) in Leo Minor

2.

New Moon The Moon disappears into the Sun's glare for a few days. Fri, 19 Dec 2025 at 17:44 PST (13 days ago) in Sagittarius

3.

The Moon at perihelion The Moon passes its closest point to the Sun, a monthly occurrence around the time of new moon. Sat, 20 Dec 2025 at 07:58 PST (12 days ago) in Sagittarius

4.

December solstice 21 December will be the shortest day of 2025 in the northern hemisphere. Sun, 21 Dec 2025 at 07:04 PST (11 days ago) in Sagittarius

5.

Ursid meteor shower 2025 The Ursid meteor shower reaches its peak. Mon, 22 Dec 2025 (10 days ago) in Ursa Minor

6.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Fri, 26 Dec 2025 at 16:08 PST (6 days ago) in Aquarius

7.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 4°01'. Fri, 26 Dec 2025 at 19:34 PST (6 days ago) in Aquarius

8.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and remaining visible until around midnight. Sat, 27 Dec 2025 at 11:10 PST (5 days ago) in Pisces

9.

The cluster NGC 2232 is well placed The open star cluster NGC 2232 (mag 4.2) in Monoceros culminates at around midnight local time. Sun, 28 Dec 2025 (4 days ago) in Monoceros

10.

The Rosette Nebula is well placed The Rosette Nebula (C49; mag 9.0) in Monoceros culminates at around midnight local time. Mon, 29 Dec 2025 (3 days ago) in Monoceros

11.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Wed, 31 Dec 2025 at 05:45 PST (23 hours ago) in Taurus

12.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, appearing larger than at other times of the month – though only very fractionally. Thu, 01 Jan 2026 at 13:44 PST (8 hours away) in Taurus

13.

Lunar occultation of Beta Tauri The Moon will pass in front of Beta Tauri (Elnath), creating a lunar occultation visible from countries and territories including Brazil, Peru, Colombia and Bolivia amongst others. Thu, 01 Jan 2026 at 17:51 PST (13 hours away) in Taurus

14.

Asteroid 40 Harmonia at opposition Asteroid 40 Harmonia makes closest approach to the Earth. Fri, 02 Jan 2026 at 06:22 PST (Tomorrow) in Gemini

15.

The cluster Messier 41 is well placed The open star cluster M41 (NGC 2287; mag 4.5) in Canis Major culminates at around midnight local time. Fri, 02 Jan 2026 (Tomorrow) in Canis Major

16.

Full Moon The Moon reaches full phase and is visible for much of the night. Sat, 03 Jan 2026 at 02:02 PST (2 days away) in Gemini

17.

The Moon at aphelion The Moon passes its furthest point from the Sun, a monthly occurrence around the time of full moon. Sat, 03 Jan 2026 at 05:27 PST (2 days away) in Gemini

18.

The Earth at perihelion The Earth reaches its closest point to the Sun. Sat, 03 Jan 2026 at 09:15 PST (2 days away) in Pisces

19.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°41'. Sat, 03 Jan 2026 at 13:59 PST (2 days away) in Gemini

20.

Quadrantid meteor shower 2026 The Quadrantid meteor shower reaches its peak. Sat, 03 Jan 2026 (2 days away) in Bootes