321.

Close approach of the Moon and Mars The Moon and Mars pass close to each other. Tue, 03 Jan 2023 at 14:51 EDT (501 days ago) in Taurus

322.

Lunar occultation of Mars The Moon will pass in front of Mars, creating a lunar occultation visible from Africa, Maldives and British Indian Ocean Territory. Tue, 03 Jan 2023 at 14:51 EDT (501 days ago) in Taurus

323.

Quadrantid meteor shower 2023 The Quadrantid meteor shower reaches its peak. Tue, 03 Jan 2023 (500 days ago) in Bootes

324.

The Earth at perihelion The Earth reaches its closest point to the Sun. Wed, 04 Jan 2023 at 11:17 EDT (500 days ago) in Pisces

325.

Full Moon The Moon reaches full phase and is visible for much of the night. Fri, 06 Jan 2023 at 18:07 EDT (498 days ago) in Gemini

326.

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. Fri, 06 Jan 2023 at 22:55 EDT (498 days ago) in Gemini

327.

Mercury at inferior solar conjunction Mercury passes around the near side of the Sun. Sat, 07 Jan 2023 at 07:53 EDT (497 days ago) in Sagittarius

328.

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. Sun, 08 Jan 2023 at 04:19 EDT (496 days ago) in Cancer

329.

Comet C/2022 E3 (ZTF) passes perihelion Comet C/2022 E3 (ZTF) makes its closest approach to the Sun. Thu, 12 Jan 2023 (492 days ago)

330.

Mars ends retrograde motion Mars returns to its usual eastward motion after opposition. Thu, 12 Jan 2023 at 15:54 EDT (492 days ago) in Taurus

331.

Comet C/2022 U2 (ATLAS) passes perihelion Comet C/2022 U2 (ATLAS) makes its closest approach to the Sun. Sat, 14 Jan 2023 (490 days ago) in Cassiopeia

332.

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. Sat, 14 Jan 2023 at 21:10 EDT (490 days ago) in Virgo

333.

The cluster Messier 47 is well placed The open star cluster M47 (NGC 2422; mag 4.4) in Puppis culminates at around midnight local time. Sun, 15 Jan 2023 (489 days ago) in Puppis

334.

NGC 2403 is well placed NGC 2403 (mag 8.9), a spiral galaxy in Camelopardalis culminates at around midnight local time. Sun, 15 Jan 2023 (489 days ago) in Camelopardalis

335.

Asteroid 2 Pallas at opposition Asteroid 2 Pallas makes closest approach to the Earth. Sun, 15 Jan 2023 at 23:46 EDT (488 days ago) in Canis Major

336.

Lunar occultation of Delta Scorpii The Moon will pass in front of Delta Scorpii (Dschubba), creating a lunar occultation visible from Asia, Christmas Island, Spratly Islands and Paracel Islands. Tue, 17 Jan 2023 at 17:29 EDT (487 days ago) in Scorpius

337.

The cluster NGC 2451 is well placed The open star cluster NGC 2451 (mag 2.8) in Puppis culminates at around midnight local time. Tue, 17 Jan 2023 (487 days ago) in Puppis

338.

134340 Pluto at solar conjunction 134340 Pluto is unobservable as it passes around the far side of the Sun – marking the end of one apparition and the beginning of the next. Wed, 18 Jan 2023 at 17:34 EDT (486 days ago) in Sagittarius

339.

γ-Ursae Minorid meteor shower 2023 The γ-Ursae Minorid meteor shower reaches its peak. Thu, 19 Jan 2023 (485 days ago) in Ursa Minor

340.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 6°56'. Fri, 20 Jan 2023 at 02:51 EDT (484 days ago) in Sagittarius