641.

New Moon The Moon disappears into the Sun's glare for a few days. Sat, 21 Jan 2023 at 15:54 EDT (526 days ago) in Capricornus

642.

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 15:57 EDT (526 days ago) in Capricornus

643.

Jupiter at perihelion Jupiter passes its orbit's closest point to the Sun. Sun, 22 Jan 2023 at 00:53 EDT (525 days ago) in Pisces

644.

Conjunction of Venus and Saturn Venus and Saturn share the same right ascension, at a separation of 21'. Sun, 22 Jan 2023 at 14:36 EDT (525 days ago) in Capricornus

645.

Close approach of Venus and Saturn Venus and Saturn pass within 20' of each other. Sun, 22 Jan 2023 at 17:13 EDT (525 days ago) in Capricornus

646.

Uranus ends retrograde motion Uranus returns to its usual eastward motion after opposition. Sun, 22 Jan 2023 at 18:23 EDT (525 days ago) in Aries

647.

Conjunction of the Moon and Saturn The Moon and Saturn share the same right ascension, at a separation of 3°49'. Mon, 23 Jan 2023 at 02:22 EDT (524 days ago) in Capricornus

648.

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 03:19 EDT (524 days ago) in Capricornus

649.

Mercury at highest altitude in morning sky Mercury is bright and well placed in the dawn sky. Mon, 23 Jan 2023 (524 days ago) in Sagittarius

650.

Comet 71P/Clark passes perihelion Comet 71P/Clark makes its closest approach to the Sun. Mon, 23 Jan 2023 (524 days ago) in Sagittarius

651.

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 (524 days ago) in Vela

652.

Mercury at dichotomy Mercury reaches half phase in the dawn sky. Tue, 24 Jan 2023 at 10:12 EDT (523 days ago) in Sagittarius

653.

Conjunction of the Moon and Jupiter The Moon and Jupiter share the same right ascension, at a separation of 1°48'. Wed, 25 Jan 2023 at 21:03 EDT (522 days ago) in Pisces

654.

Close approach of the Moon and Jupiter The Moon and Jupiter pass close to each other. Wed, 25 Jan 2023 at 22:30 EDT (522 days ago) in Pisces

655.

Asteroid 6 Hebe at opposition Asteroid 6 Hebe makes closest approach to the Earth. Thu, 26 Jan 2023 at 11:46 EDT (521 days ago) in Cancer

656.

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. Sat, 28 Jan 2023 at 10:19 EDT (519 days ago) in Aries

657.

Close approach of the Moon and Uranus The Moon and Uranus pass close to each other. Sat, 28 Jan 2023 at 22:28 EDT (519 days ago) in Aries

658.

Lunar occultation of Uranus The Moon will pass in front of Uranus, creating a lunar occultation visible from Greenland, Canada and Alaska. Sat, 28 Jan 2023 at 22:28 EDT (519 days ago) in Aries

659.

Mercury at greatest elongation west Mercury is bright and well placed in the dawn sky. Mon, 30 Jan 2023 at 04:05 EDT (517 days ago) in Sagittarius

660.

Conjunction of the Moon and Mars The Moon and Mars share the same right ascension, at a separation of 6'19". Mon, 30 Jan 2023 at 23:24 EDT (516 days ago) in Taurus