1.

Messier 5 is well placed The globular cluster M5 (NGC 5904; mag 5.7) in Serpens culminates at around midnight local time. Tue, 12 May 2026 (12 days ago) in Serpens Caput

2.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Wed, 13 May 2026 at 10:32 PDT (11 days ago) in Cetus

3.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 5°41'. Wed, 13 May 2026 at 14:58 PDT (11 days ago) in Cetus

4.

Mercury at superior solar conjunction Mercury passes around the far side of the Sun. Thu, 14 May 2026 at 07:30 PDT (10 days ago) in Aries

5.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 5°09'. Thu, 14 May 2026 at 17:45 PDT (10 days ago) in Pisces

6.

The Moon at perihelion The Moon passes its closest point to the Sun, a monthly occurrence around the time of new moon. Thu, 14 May 2026 at 18:06 PDT (10 days ago) in Pisces

7.

1 Ceres at solar conjunction 1 Ceres is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Thu, 14 May 2026 at 19:31 PDT (10 days ago) in Taurus

8.

Venus at perihelion Venus passes its closest point to the Sun. Thu, 14 May 2026 at 20:01 PDT (10 days ago) in Taurus

9.

New Moon The Moon disappears into the Sun's glare for a few days. Sat, 16 May 2026 at 13:02 PDT (8 days ago) in Aries

10.

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. Sun, 17 May 2026 at 06:43 PDT (7 days ago) in Taurus

11.

Mercury at perihelion Mercury passes its closest point to the Sun. Mon, 18 May 2026 at 03:27 PDT (6 days ago) in Taurus

12.

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 Mozambique, Malawi, Tanzania and Zimbabwe amongst others. Mon, 18 May 2026 at 07:31 PDT (6 days ago) in Taurus

13.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 2°56'. Mon, 18 May 2026 at 18:50 PDT (6 days ago) in Taurus

14.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Mon, 18 May 2026 at 19:03 PDT (6 days ago) in Taurus

15.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 3°05'. Wed, 20 May 2026 at 05:37 PDT (4 days ago) in Gemini

16.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Wed, 20 May 2026 at 06:46 PDT (4 days ago) in Gemini

17.

Close approach of the Moon and M44 The Moon and M44 pass close to each other. Thu, 21 May 2026 at 09:00 PDT (3 days ago) in Cancer

18.

Uranus at solar conjunction Uranus is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Fri, 22 May 2026 at 07:17 PDT (2 days ago) in Taurus

19.

Lunar occultation of Regulus The Moon will pass in front of Regulus (Alpha Leonis), creating a lunar occultation visible from parts of Oceania, Baker Island, Howland Island and Tokelau. Sat, 23 May 2026 at 00:17 PDT (Yesterday) in Leo

20.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and remaining visible until around midnight. Sat, 23 May 2026 at 04:11 PDT (Yesterday) in Leo