421.

α-Monocerotid meteor shower 2025 The α-Monocerotid meteor shower reaches its peak. Fri, 21 Nov 2025 (555 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 01:34 EDT (556 days away) in Ophiuchus

423.

Comet 210P/Christensen passes perihelion Comet 210P/Christensen makes its closest approach to the Sun. Sat, 22 Nov 2025 (556 days away) in Libra

424.

Mercury at perihelion Mercury passes its orbit's closest point to the Sun. Sun, 23 Nov 2025 at 06:11 EDT (557 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 19:23 EDT (557 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 (561 days away) in Taurus

427.

Saturn ends retrograde motion Saturn returns to its usual eastward motion after opposition. Thu, 27 Nov 2025 at 22:45 EDT (561 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 01:59 EDT (562 days away) in Aquarius

429.

November Orionid meteor shower 2025 The November Orionid meteor shower reaches its peak. Fri, 28 Nov 2025 (562 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 11:12 EDT (563 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 14:18 EDT (563 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 05:09 EDT (564 days away) in Ophiuchus

433.

Pheonicid meteor shower 2025 The Pheonicid meteor shower reaches its peak. Tue, 02 Dec 2025 (566 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 15:54 EDT (567 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 22:19 EDT (567 days away) in Taurus

436.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Thu, 04 Dec 2025 at 03:05 EDT (568 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 06:07 EDT (568 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 18:13 EDT (568 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 09:42 EDT (569 days away) in Taurus

440.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Fri, 05 Dec 2025 (570 days away) in Libra