421.

α-Monocerotid meteor shower 2025 The α-Monocerotid meteor shower reaches its peak. Fri, 21 Nov 2025 (550 days away) in Canis Minor

422.

The Moon at perihelion The Moon passes its orbit's closest point to the Sun, which happens each month around the time of new moon. Sat, 22 Nov 2025 at 00:34 CDT (551 days away) in Ophiuchus

423.

Comet 210P/Christensen passes perihelion Comet 210P/Christensen makes its closest approach to the Sun. Sat, 22 Nov 2025 (551 days away) in Libra

424.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Sun, 23 Nov 2025 at 05:11 CDT (552 days away) in Libra

425.

Lunar occultation of Sigma Sagittarii The Moon will pass in front of Sigma Sagittarii (Nunki), creating a lunar occultation visible from Falkland Islands and South Georgia and the South Sandwich Islands. Sun, 23 Nov 2025 at 18:23 CDT (552 days away) in Sagittarius

426.

The Hyades cluster is well placed The Hyades open star cluster (Collinder 50; mag 1.0) in Taurus culminates at around midnight local time. Thu, 27 Nov 2025 (556 days away) in Taurus

427.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Thu, 27 Nov 2025 at 21:45 CDT (556 days away) in Aquarius

428.

Moon at First Quarter The Moon reaches first quarter phase – appearing high in the sky at sunset and setting in the west at around midnight. Fri, 28 Nov 2025 at 00:59 CDT (557 days away) in Aquarius

429.

November Orionid meteor shower 2025 The November Orionid meteor shower reaches its peak. Fri, 28 Nov 2025 (557 days away) in Orion

430.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sat, 29 Nov 2025 at 10:12 CDT (558 days away) in Aquarius

431.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°45'. Sat, 29 Nov 2025 at 13:18 CDT (558 days away) in Aquarius

432.

Mars at apogee Mars reaches its furthest point from the Earth, as it passes around the far side of the Sun. Sun, 30 Nov 2025 at 04:09 CDT (559 days away) in Ophiuchus

433.

Pheonicid meteor shower 2025 The Pheonicid meteor shower reaches its peak. Tue, 02 Dec 2025 (561 days away) in Phoenix

434.

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. Wed, 03 Dec 2025 at 14:54 CDT (562 days away) in Aries

435.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Wed, 03 Dec 2025 at 21:19 CDT (562 days away) in Taurus

436.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Thu, 04 Dec 2025 at 02:05 CDT (563 days away) in Libra

437.

The Moon at perigee The Moon makes its monthly closest approach to the Earth, making it appear fractionally larger than at other times of the month. Thu, 04 Dec 2025 at 05:07 CDT (563 days away) in Taurus

438.

Full Moon The Moon reaches full phase and is visible for much of the night. Thu, 04 Dec 2025 at 17:13 CDT (563 days away) in Taurus

439.

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 Australia, Indonesia, Papua New Guinea and Malaysia amongst others. Fri, 05 Dec 2025 at 08:42 CDT (564 days away) in Taurus

440.

December φ-Cassiopeid meteor shower 2025 The December φ-Cassiopeid meteor shower reaches its peak. Sat, 06 Dec 2025 (565 days away) in Andromeda