541.

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. Wed, 10 Jan 2024 at 20:32 EDT (170 days ago) in Sagittarius

542.

New Moon The Moon disappears into the Sun's glare for a few days. Thu, 11 Jan 2024 at 06:58 EDT (169 days ago) in Sagittarius

543.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Fri, 12 Jan 2024 at 14:18 EDT (168 days ago) in Sagittarius

544.

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, 13 Jan 2024 at 05:35 EDT (167 days ago) in Capricornus

545.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 2°08'. Sun, 14 Jan 2024 at 04:33 EDT (166 days ago) in Aquarius

546.

Close approach of the Moon and Saturn The Moon and Saturn pass close to each other. Sun, 14 Jan 2024 at 06:02 EDT (166 days ago) in Aquarius

547.

Lunar occultation of Neptune The Moon will pass in front of Neptune, creating a lunar occultation visible from Saint Helena. Mon, 15 Jan 2024 at 16:09 EDT (165 days ago) in Pisces

548.

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. Mon, 15 Jan 2024 (165 days ago) in Puppis

549.

NGC 2403 is well placed NGC 2403 (mag 8.9), a spiral galaxy in Camelopardalis culminates at around midnight local time. Mon, 15 Jan 2024 (165 days ago) in Camelopardalis

550.

Conjunction of Venus and Ceres Venus and Ceres share the same right ascension, at a separation of 9'23". Tue, 16 Jan 2024 at 21:14 EDT (164 days ago) in Ophiuchus

551.

The cluster NGC 2451 is well placed The open star cluster NGC 2451 (mag 2.8) in Puppis culminates at around midnight local time. Wed, 17 Jan 2024 (163 days ago) in Puppis

552.

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. Wed, 17 Jan 2024 at 22:53 EDT (163 days ago) in Pisces

553.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Thu, 18 Jan 2024 at 13:42 EDT (162 days ago) in Aries

554.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 2°46'. Thu, 18 Jan 2024 at 15:42 EDT (162 days ago) in Aries

555.

Comet C/2023 S3 (Lemmon) passes perihelion Comet C/2023 S3 (Lemmon) makes its closest approach to the Sun. Fri, 19 Jan 2024 (161 days ago) in Microscopium

556.

γ-Ursae Minorid meteor shower 2024 The γ-Ursae Minorid meteor shower reaches its peak. Fri, 19 Jan 2024 (161 days ago) in Ursa Minor

557.

Asteroid 354 Eleonora at opposition Asteroid 354 Eleonora makes closest approach to the Earth. Fri, 19 Jan 2024 at 23:46 EDT (160 days ago) in Canis Minor

558.

Close approach of the Moon and M45 The Moon and M45 pass close to each other. Sat, 20 Jan 2024 at 09:39 EDT (160 days ago) in Taurus

559.

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. Sat, 20 Jan 2024 at 16:54 EDT (160 days ago) in Capricornus

560.

The cluster NGC 2516 is well placed The open star cluster NGC 2516 (mag 3.8) in Volans culminates at around midnight local time. Sat, 20 Jan 2024 (160 days ago) in Carina