361.

December solstice 22 December will be the shortest day of 2023 in the northern hemisphere. Thu, 21 Dec 2023 at 22:24 EDT (148 days ago) in Sagittarius

362.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Fri, 22 Dec 2023 at 07:31 EDT (147 days ago) in Aries

363.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°36'. Fri, 22 Dec 2023 at 09:24 EDT (147 days ago) in Aries

364.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Fri, 22 Dec 2023 at 13:50 EDT (147 days ago) in Sagittarius

365.

Asteroid 9 Metis at opposition Asteroid 9 Metis makes closest approach to the Earth. Fri, 22 Dec 2023 at 14:10 EDT (147 days ago) in Gemini

366.

Ursid meteor shower 2023 The Ursid meteor shower reaches its peak. Fri, 22 Dec 2023 (146 days ago) in Ursa Minor

367.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Sun, 24 Dec 2023 at 03:56 EDT (145 days ago) in Taurus

368.

Comet 62P/Tsuchinshan passes perihelion Comet 62P/Tsuchinshan makes its closest approach to the Sun. Mon, 25 Dec 2023 (144 days ago) in Leo

369.

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 Argentina, Brazil, Uruguay and Falkland Islands amongst others. Mon, 25 Dec 2023 at 21:08 EDT (144 days ago) in Taurus

370.

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, 26 Dec 2023 at 14:55 EDT (143 days ago) in Auriga

371.

Full Moon The Moon reaches full phase and is visible for much of the night. Tue, 26 Dec 2023 at 19:33 EDT (143 days ago) in Auriga

372.

Asteroid 5 Astraea at opposition Asteroid 5 Astraea makes closest approach to the Earth. Wed, 27 Dec 2023 at 21:22 EDT (142 days ago) in Orion

373.

The cluster NGC 2232 is well placed The open star cluster NGC 2232 (mag 4.2) in Monoceros culminates at around midnight local time. Fri, 29 Dec 2023 (140 days ago) in Monoceros

374.

The Rosette Nebula is well placed The Rosette Nebula (C49; mag 9.0) in Monoceros culminates at around midnight local time. Sat, 30 Dec 2023 (139 days ago) in Monoceros

375.

Jupiter ends retrograde motion Jupiter returns to its usual eastward motion after opposition. Sat, 30 Dec 2023 at 21:41 EDT (139 days ago) in Aries

376.

Comet 62P/Tsuchinshan reaches peak brightness Comet 62P/Tsuchinshan is forecast to reach the brightest point in its 2023 apparition. Sun, 31 Dec 2023 (138 days ago) in Leo

377.

The Moon at apogee The Moon recedes to its orbit's furthest point from the Earth, making it appear fractionally smaller than at other times of the month. Mon, 01 Jan 2024 at 10:28 EDT (137 days ago) in Leo

378.

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. Tue, 02 Jan 2024 (136 days ago) in Canis Major

379.

The Earth at perihelion The Earth reaches its closest point to the Sun. Tue, 02 Jan 2024 at 19:38 EDT (136 days ago) in Pisces

380.

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. Wed, 03 Jan 2024 at 22:31 EDT (135 days ago) in Virgo