2541.

136199 Eris at solar conjunction 136199 Eris is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Mon, 14 Apr 2025 at 22:45 EDT (282 days away) in Cetus

2542.

The Moon at aphelion The Moon recedes to its orbit's furthest point from the Sun, which happens each month around the time of full moon. Tue, 15 Apr 2025 at 19:07 EDT (283 days away) in Libra

2543.

Conjunction of Mercury and Neptune Mercury and Neptune share the same right ascension, at a separation of 41'. Wed, 16 Apr 2025 at 14:32 EDT (284 days away) in Pisces

2544.

Mars at aphelion Mars passes the furthest point along its orbit from the Sun. Wed, 16 Apr 2025 at 16:38 EDT (284 days away) in Cancer

2545.

Lunar occultation of Antares The Moon will pass in front of Antares (Alpha Scorpii), creating a lunar occultation visible from countries and territories including Antarctica, South Africa, Namibia and Botswana amongst others. Wed, 16 Apr 2025 at 18:52 EDT (284 days away) in Scorpius

2546.

Messier 83 is well placed The Southern Pinwheel Galaxy M83 (NGC 5236; mag 7.2), a face-on spiral galaxy in Hydra culminates at around midnight local time. Wed, 16 Apr 2025 (284 days away) in Hydra

2547.

Mercury at aphelion Mercury passes the furthest point along its orbit from the Sun. Thu, 17 Apr 2025 at 09:32 EDT (285 days away) in Pisces

2548.

Messier 3 is well placed The globular cluster M3 (NGC 5272; mag 6.3) in Canes Venatici culminates at around midnight local time. Thu, 17 Apr 2025 (285 days away) in Canes Venatici

2549.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Sat, 19 Apr 2025 (287 days away) in Pisces

2550.

Moon at Last Quarter The Moon reaches last quarter phase – rising in the east at around midnight and appearing high in the sky by sunrise. Sun, 20 Apr 2025 at 21:36 EDT (288 days away) in Capricornus

2551.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 21 Apr 2025 at 11:06 EDT (289 days away) in Pisces

2552.

136108 Haumea at opposition 136108 Haumea lies in the opposite direction to the Sun in the sky, making it optimally positioned to be observable for much of the night. Tue, 22 Apr 2025 at 05:13 EDT (290 days away) in Bootes

2553.

Lyrid meteor shower 2025 The Lyrid meteor shower reaches its peak. Tue, 22 Apr 2025 (290 days away) in Hercules

2554.

Messier 101 is well placed The Pinwheel Galaxy M101 (NGC 5457; mag 7.9) in Ursa Major culminates at around midnight local time. Tue, 22 Apr 2025 (290 days away) in Ursa Major

2555.

π-Puppid meteor shower 2025 The π-Puppid meteor shower reaches its peak. Wed, 23 Apr 2025 (291 days away) in Puppis

2556.

Venus at greatest brightness Venus reaches its greatest brightness in the dawn sky. Thu, 24 Apr 2025 at 02:02 EDT (292 days away) in Pisces

2557.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Thu, 24 Apr 2025 at 11:41 EDT (292 days away) in Cetus

2558.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 2°23'. Thu, 24 Apr 2025 at 21:21 EDT (292 days away) in Pisces

2559.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Thu, 24 Apr 2025 at 22:35 EDT (292 days away) in Pisces

2560.

Close approach of the Moon and Venus The Moon and Venus pass close to each other. Thu, 24 Apr 2025 at 23:19 EDT (292 days away) in Pisces