621.

Asteroid 2 Pallas at opposition Asteroid 2 Pallas makes closest approach to the Earth. Sun, 15 Jan 2023 at 20:46 PDT (527 days ago) in Canis Major

622.

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 14:29 PDT (525 days ago) in Scorpius

623.

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 (525 days ago) in Puppis

624.

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 14:34 PDT (524 days ago) in Sagittarius

625.

γ-Ursae Minorid meteor shower 2023 The γ-Ursae Minorid meteor shower reaches its peak. Thu, 19 Jan 2023 (523 days ago) in Ursa Minor

626.

Conjunction of the Moon and Mercury The Moon and Mercury share the same right ascension, at a separation of 6°56'. Thu, 19 Jan 2023 at 23:51 PDT (522 days ago) in Sagittarius

627.

The cluster NGC 2516 is well placed The open star cluster NGC 2516 (mag 3.8) in Volans culminates at around midnight local time. Fri, 20 Jan 2023 (522 days ago) in Carina

628.

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. Fri, 20 Jan 2023 at 21:14 PDT (522 days ago) in Sagittarius

629.

New Moon The Moon disappears into the Sun's glare for a few days. Sat, 21 Jan 2023 at 12:54 PDT (521 days ago) in Capricornus

630.

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. Sat, 21 Jan 2023 at 12:57 PDT (521 days ago) in Capricornus

631.

Jupiter at perihelion Jupiter passes its orbit's closest point to the Sun. Sat, 21 Jan 2023 at 21:53 PDT (521 days ago) in Pisces

632.

Conjunction of Venus and Saturn Venus and Saturn share the same right ascension, at a separation of 21'. Sun, 22 Jan 2023 at 11:36 PDT (520 days ago) in Capricornus

633.

Close approach of Venus and Saturn Venus and Saturn pass within 20' of each other. Sun, 22 Jan 2023 at 14:13 PDT (520 days ago) in Capricornus

634.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Sun, 22 Jan 2023 at 15:23 PDT (520 days ago) in Aries

635.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°49'. Sun, 22 Jan 2023 at 23:22 PDT (519 days ago) in Capricornus

636.

Conjunction of the Moon and Venus The Moon and Venus share the same right ascension, at a separation of 3°27'. Mon, 23 Jan 2023 at 00:19 PDT (519 days ago) in Capricornus

637.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Mon, 23 Jan 2023 (519 days ago) in Sagittarius

638.

The cluster NGC 2547 is well placed The open star cluster NGC 2547 (mag 4.7) in Vela culminates at around midnight local time. Mon, 23 Jan 2023 (519 days ago) in Vela

639.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Tue, 24 Jan 2023 (518 days ago) in Sagittarius

640.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Tue, 24 Jan 2023 at 07:12 PDT (518 days ago) in Sagittarius